Page 1
Factory Workshop Manual
Ford
Mustang
V8-302 5.0L COBRA (1995)
Anonymous
1st January 2018
Make
Model
Engine and year
This manual was submitted by
Date
Page 2
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 111 - 120, ( 112 113 114
115 116 117 118 119 ) > System Information > System Diagnosis
Page 3
Code 111 - 120: Testing and Inspection
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
No DTCs OUTPUT OR DTCs NOT LISTED
KOEO self-test .....................................................................................................................................
............................................................... QA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/QA - No Codes/Codes Not Listed/QA1 - Check
VREF Voltage At Self-Test Connector
KOEO self-test .....................................................................................................................................
............................................................... QA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/QA - No Codes/Codes Not Listed/QA1 - Check
VREF Voltage At Self-Test Connector
DTC 111
System Pass.
DTC 112
Intake Air Temperature sensor circuit below minimum voltage, 254 degrees F indicated.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DA20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA20 - Induce DTC 118 or 113
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DA90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA90 - Check Sensor
DTC 113
Intake air temperature sensor circuit above maximum voltage/ -4O degrees F indicated.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DA10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA10 - Induce DTC 117 or 112
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DA90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA90 - Check Sensor
DTC 114
Intake air temperature higher or lower than expected.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA1 - Check ECT or IAT Sensor
Page 4
KOER Hard Code ................................................................................................................................
.................................................... Go to DA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA1 - Check ECT or IAT Sensor
DTC 116
Engine coolant temperature higher or lower than expected.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA1 - Check ECT or IAT Sensor
KOER Hard Code ................................................................................................................................
.................................................... Go to DA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA1 - Check ECT or IAT Sensor
DTC 117
Engine coolant temperature sensor circuit below minimum voltage 254 degrees F indicated.
Page 5
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 111 - 120, ( 112 113 114
115 116 117 118 119 ) > System Information > System Diagnosis > Page 7
Page 6
KOEO Hard Code ................................................................................................................................
.................................................. Go to DA20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA20 - Induce DTC 118 or 113
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DA90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA90 - Check Sensor
DTC 118
Engine coolant temperature sensor circuit above maximum voltage/ -40 degrees F indicated.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DA10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA10 - Induce DTC 117 or 112
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DA90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA90 - Check Sensor
DTC 121
Closed throttle voltage higher or lower than expected. Indicates throttle position voltage
inconsistent with the mass air flow sensor.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DH2 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH2 - Check
For Stuck Throttle Plate
KOER Hard Code ................................................................................................................................
.................................................... Go to DH1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH1 - Check for
Other DTCs
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G1 - Check for Idle Air DTCs: Initiate KOER Self-Test
DTC 122
Throttle position sensor circuit below minimum voltage.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DH10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH10 - Attempt
to Generate DTC 123 or 121
KOEO Memory Code ...........................................................................................................................
................................................. Go to DH94 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH94 - Monitor
TP Circuit Under Simulated Road Shock
DTC 123
Page 7
Throttle position sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DH3 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH3 - Attempt
to Generate DTC 122
KOEO Memory Code ...........................................................................................................................
................................................. Go to DH90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH90 - Monitor
TP Circuit Under Simulated Road Shock
DTC 124
Throttle position sensor voltage higher than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G1 - Check for Idle Air DTCs: Initiate KOER Self-Test
DTC 125
Throttle position sensor voltage lower than expected.
Page 8
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 111 - 120, ( 112 113 114
115 116 117 118 119 ) > System Information > System Diagnosis > Page 8
Page 9
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G1 - Check for Idle Air DTCs: Initiate KOER Self-Test
DTC 126
Manifold absolute pressure or barometric pressure sensor higher or lower than expected.
KOEO Hard Code ................................................................................................................................
..................................................... Go to DF1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DF - Manifold Absolute Pressure (MAP)/Barometric
Pressure (BP)/DF1
KOER Hard Code ................................................................................................................................
..................................................... Go to DF1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DF - Manifold Absolute Pressure (MAP)/Barometric
Pressure (BP)/DF1
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DF90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DF - Manifold Absolute Pressure (MAP)/Barometric
Pressure (BP)/DF90
DTC 128
Manifold absolute pressure sensor vacuum hose damaged or disconnected.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DF11 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DF - Manifold Absolute Pressure (MAP)/Barometric
Pressure (BP)/DF11
Page 10
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 121 - 130, ( 122 123 124
125 126 127 128 129 ) > System Information > System Diagnosis > 121-128
Page 11
Code 121 - 130: Testing and Inspection 121-128
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
No DTCs OUTPUT OR DTCs NOT LISTED
KOEO self-test .....................................................................................................................................
............................................................... QA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/QA - No Codes/Codes Not Listed/QA1 - Check
VREF Voltage At Self-Test Connector
KOEO self-test .....................................................................................................................................
............................................................... QA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/QA - No Codes/Codes Not Listed/QA1 - Check
VREF Voltage At Self-Test Connector
DTC 111
System Pass.
DTC 112
Intake Air Temperature sensor circuit below minimum voltage, 254 degrees F indicated.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DA20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA20 - Induce DTC 118 or 113
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DA90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA90 - Check Sensor
DTC 113
Intake air temperature sensor circuit above maximum voltage/ -4O degrees F indicated.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DA10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA10 - Induce DTC 117 or 112
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DA90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA90 - Check Sensor
DTC 114
Intake air temperature higher or lower than expected.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA1 - Check ECT or IAT Sensor
Page 12
KOER Hard Code ................................................................................................................................
.................................................... Go to DA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA1 - Check ECT or IAT Sensor
DTC 116
Engine coolant temperature higher or lower than expected.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA1 - Check ECT or IAT Sensor
KOER Hard Code ................................................................................................................................
.................................................... Go to DA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA1 - Check ECT or IAT Sensor
DTC 117
Page 13
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 121 - 130, ( 122 123 124
125 126 127 128 129 ) > System Information > System Diagnosis > 121-128 > Page 13
Page 14
Engine coolant temperature sensor circuit below minimum voltage 254 degrees F indicated.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DA20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA20 - Induce DTC 118 or 113
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DA90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA90 - Check Sensor
DTC 118
Engine coolant temperature sensor circuit above maximum voltage/ -40 degrees F indicated.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DA10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA10 - Induce DTC 117 or 112
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DA90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA90 - Check Sensor
DTC 121
Closed throttle voltage higher or lower than expected. Indicates throttle position voltage
inconsistent with the mass air flow sensor.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DH2 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH2 - Check
For Stuck Throttle Plate
KOER Hard Code ................................................................................................................................
.................................................... Go to DH1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH1 - Check for
Other DTCs
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G1 - Check for Idle Air DTCs: Initiate KOER Self-Test
DTC 122
Throttle position sensor circuit below minimum voltage.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DH10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH10 - Attempt
to Generate DTC 123 or 121
KOEO Memory Code ...........................................................................................................................
................................................. Go to DH94 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH94 - Monitor
TP Circuit Under Simulated Road Shock
Page 15
DTC 123
Throttle position sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DH3 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH3 - Attempt
to Generate DTC 122
KOEO Memory Code ...........................................................................................................................
................................................. Go to DH90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH90 - Monitor
TP Circuit Under Simulated Road Shock
DTC 124
Throttle position sensor voltage higher than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G1 - Check for Idle Air DTCs: Initiate KOER Self-Test
DTC 125
Page 16
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 121 - 130, ( 122 123 124
125 126 127 128 129 ) > System Information > System Diagnosis > 121-128 > Page 14
Page 17
Throttle position sensor voltage lower than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G1 - Check for Idle Air DTCs: Initiate KOER Self-Test
DTC 126
Manifold absolute pressure or barometric pressure sensor higher or lower than expected.
KOEO Hard Code ................................................................................................................................
..................................................... Go to DF1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DF - Manifold Absolute Pressure (MAP)/Barometric
Pressure (BP)/DF1
KOER Hard Code ................................................................................................................................
..................................................... Go to DF1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DF - Manifold Absolute Pressure (MAP)/Barometric
Pressure (BP)/DF1
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DF90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DF - Manifold Absolute Pressure (MAP)/Barometric
Pressure (BP)/DF90
DTC 128
Manifold absolute pressure sensor vacuum hose damaged or disconnected.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DF11 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DF - Manifold Absolute Pressure (MAP)/Barometric
Pressure (BP)/DF11
Page 18
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 121 - 130, ( 122 123 124
125 126 127 128 129 ) > System Information > System Diagnosis > 121-128 > Page 15
Page 19
Code 121 - 130: Testing and Inspection 129
DTC 129
Insufficient manifold absolute pressure sensor or mass airflow sensor change during dynamic
response test KOER. DTCs should be diagnosed in the order they are received.
KOER Hard Code ................................................................................................................................
.................................................. Go to DC13 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC13 - Air Leak
at MAF Sensor
DTC 136
Lack of heated oxygen sensor switch during KOER self-test, indicates lean (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 137
Lack of heated oxygen sensor switch during KOER self-test, indicates rich (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 139
No heated oxygen sensor switches detected (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 141
Fuel system indicates lean.
KOER Hard Code ................................................................................................................................
.................................................... Go to HB1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HB - Flexible Fuel (FF) Control/HB1 - Check For
Fuel Diluted Engine Oil
DTC 144
No heated oxygen sensor switches detected (bank #1).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 157
Mass air flow sensor circuit below minimum voltage.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC10 - Check
Page 20
For Intermittent Sensor
DTC 158
Mass air flow sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
DTC 159
Mass air flow sensor signal higher or lower than expected.
Page 21
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 121 - 130, ( 122 123 124
125 126 127 128 129 ) > System Information > System Diagnosis > 121-128 > Page 16
Page 22
KOEO Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
KOER Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
DTC 167
Insufficient throttle position change during dynamic response test KOER.
KOER Hard Code ................................................................................................................................
.................................................. Go to DH20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH20 - Perform
Dynamic Response Test At Wide Open Throttle
DTC 171
Fuel system at adaptive limits, heated oxygen sensor unable to switch (Bank #1)
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
Page 23
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 131 - 140, ( 132 133 134
135 136 137 138 139 ) > System Information > System Diagnosis
Page 24
Code 131 - 140: Testing and Inspection
DTC 129
Insufficient manifold absolute pressure sensor or mass airflow sensor change during dynamic
response test KOER. DTCs should be diagnosed in the order they are received.
KOER Hard Code ................................................................................................................................
.................................................. Go to DC13 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC13 - Air Leak
at MAF Sensor
DTC 136
Lack of heated oxygen sensor switch during KOER self-test, indicates lean (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 137
Lack of heated oxygen sensor switch during KOER self-test, indicates rich (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 139
No heated oxygen sensor switches detected (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 141
Fuel system indicates lean.
KOER Hard Code ................................................................................................................................
.................................................... Go to HB1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HB - Flexible Fuel (FF) Control/HB1 - Check For
Fuel Diluted Engine Oil
DTC 144
No heated oxygen sensor switches detected (bank #1).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 157
Mass air flow sensor circuit below minimum voltage.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC10 - Check
Page 25
For Intermittent Sensor
DTC 158
Mass air flow sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
DTC 159
Mass air flow sensor signal higher or lower than expected.
Page 26
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 131 - 140, ( 132 133 134
135 136 137 138 139 ) > System Information > System Diagnosis > Page 20
Page 27
KOEO Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
KOER Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
DTC 167
Insufficient throttle position change during dynamic response test KOER.
KOER Hard Code ................................................................................................................................
.................................................. Go to DH20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH20 - Perform
Dynamic Response Test At Wide Open Throttle
DTC 171
Fuel system at adaptive limits, heated oxygen sensor unable to switch (Bank #1)
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
Page 28
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 141 - 150, ( 142 143 144
145 146 147 148 149 ) > System Information > System Diagnosis
Page 29
Code 141 - 150: Testing and Inspection
DTC 129
Insufficient manifold absolute pressure sensor or mass airflow sensor change during dynamic
response test KOER. DTCs should be diagnosed in the order they are received.
KOER Hard Code ................................................................................................................................
.................................................. Go to DC13 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC13 - Air Leak
at MAF Sensor
DTC 136
Lack of heated oxygen sensor switch during KOER self-test, indicates lean (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 137
Lack of heated oxygen sensor switch during KOER self-test, indicates rich (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 139
No heated oxygen sensor switches detected (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 141
Fuel system indicates lean.
KOER Hard Code ................................................................................................................................
.................................................... Go to HB1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HB - Flexible Fuel (FF) Control/HB1 - Check For
Fuel Diluted Engine Oil
DTC 144
No heated oxygen sensor switches detected (bank #1).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 157
Mass air flow sensor circuit below minimum voltage.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC10 - Check
Page 30
For Intermittent Sensor
DTC 158
Mass air flow sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
DTC 159
Mass air flow sensor signal higher or lower than expected.
Page 31
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 141 - 150, ( 142 143 144
145 146 147 148 149 ) > System Information > System Diagnosis > Page 24
Page 32
KOEO Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
KOER Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
DTC 167
Insufficient throttle position change during dynamic response test KOER.
KOER Hard Code ................................................................................................................................
.................................................. Go to DH20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH20 - Perform
Dynamic Response Test At Wide Open Throttle
DTC 171
Fuel system at adaptive limits, heated oxygen sensor unable to switch (Bank #1)
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
Page 33
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 151 - 160, ( 152 153 154
155 156 157 158 159 ) > System Information > System Diagnosis
Page 34
Code 151 - 160: Testing and Inspection
DTC 129
Insufficient manifold absolute pressure sensor or mass airflow sensor change during dynamic
response test KOER. DTCs should be diagnosed in the order they are received.
KOER Hard Code ................................................................................................................................
.................................................. Go to DC13 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC13 - Air Leak
at MAF Sensor
DTC 136
Lack of heated oxygen sensor switch during KOER self-test, indicates lean (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 137
Lack of heated oxygen sensor switch during KOER self-test, indicates rich (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 139
No heated oxygen sensor switches detected (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 141
Fuel system indicates lean.
KOER Hard Code ................................................................................................................................
.................................................... Go to HB1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HB - Flexible Fuel (FF) Control/HB1 - Check For
Fuel Diluted Engine Oil
DTC 144
No heated oxygen sensor switches detected (bank #1).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 157
Mass air flow sensor circuit below minimum voltage.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC10 - Check
Page 35
For Intermittent Sensor
DTC 158
Mass air flow sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
DTC 159
Mass air flow sensor signal higher or lower than expected.
Page 36
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 151 - 160, ( 152 153 154
155 156 157 158 159 ) > System Information > System Diagnosis > Page 28
Page 37
KOEO Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
KOER Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
DTC 167
Insufficient throttle position change during dynamic response test KOER.
KOER Hard Code ................................................................................................................................
.................................................. Go to DH20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH20 - Perform
Dynamic Response Test At Wide Open Throttle
DTC 171
Fuel system at adaptive limits, heated oxygen sensor unable to switch (Bank #1)
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
Page 38
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 161 - 170, ( 162 163 164
165 166 167 168 169 ) > System Information > System Diagnosis
Page 39
Code 161 - 170: Testing and Inspection
DTC 129
Insufficient manifold absolute pressure sensor or mass airflow sensor change during dynamic
response test KOER. DTCs should be diagnosed in the order they are received.
KOER Hard Code ................................................................................................................................
.................................................. Go to DC13 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC13 - Air Leak
at MAF Sensor
DTC 136
Lack of heated oxygen sensor switch during KOER self-test, indicates lean (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 137
Lack of heated oxygen sensor switch during KOER self-test, indicates rich (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 139
No heated oxygen sensor switches detected (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 141
Fuel system indicates lean.
KOER Hard Code ................................................................................................................................
.................................................... Go to HB1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HB - Flexible Fuel (FF) Control/HB1 - Check For
Fuel Diluted Engine Oil
DTC 144
No heated oxygen sensor switches detected (bank #1).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 157
Mass air flow sensor circuit below minimum voltage.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC10 - Check
Page 40
For Intermittent Sensor
DTC 158
Mass air flow sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
DTC 159
Mass air flow sensor signal higher or lower than expected.
Page 41
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 161 - 170, ( 162 163 164
165 166 167 168 169 ) > System Information > System Diagnosis > Page 32
Page 42
KOEO Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
KOER Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
DTC 167
Insufficient throttle position change during dynamic response test KOER.
KOER Hard Code ................................................................................................................................
.................................................. Go to DH20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH20 - Perform
Dynamic Response Test At Wide Open Throttle
DTC 171
Fuel system at adaptive limits, heated oxygen sensor unable to switch (Bank #1)
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
Page 43
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 171 - 180, ( 172 173 174
175 176 177 178 179 ) > System Information > System Diagnosis > 171
Page 44
Code 171 - 180: Testing and Inspection 171
DTC 129
Insufficient manifold absolute pressure sensor or mass airflow sensor change during dynamic
response test KOER. DTCs should be diagnosed in the order they are received.
KOER Hard Code ................................................................................................................................
.................................................. Go to DC13 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC13 - Air Leak
at MAF Sensor
DTC 136
Lack of heated oxygen sensor switch during KOER self-test, indicates lean (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 137
Lack of heated oxygen sensor switch during KOER self-test, indicates rich (Bank #2).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 139
No heated oxygen sensor switches detected (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 141
Fuel system indicates lean.
KOER Hard Code ................................................................................................................................
.................................................... Go to HB1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HB - Flexible Fuel (FF) Control/HB1 - Check For
Fuel Diluted Engine Oil
DTC 144
No heated oxygen sensor switches detected (bank #1).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 157
Mass air flow sensor circuit below minimum voltage.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC10 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC10 - Check
Page 45
For Intermittent Sensor
DTC 158
Mass air flow sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DC22 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor/DC22 - Rerun
Self-Test W/MAF Sensor Disconnected
DTC 159
Mass air flow sensor signal higher or lower than expected.
Page 46
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 171 - 180, ( 172 173 174
175 176 177 178 179 ) > System Information > System Diagnosis > 171 > Page 37
Page 47
KOEO Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
KOER Hard Code ................................................................................................................................
.................................................... Go to DC1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DC - Mass Air Flow (MAF) Sensor
DTC 167
Insufficient throttle position change during dynamic response test KOER.
KOER Hard Code ................................................................................................................................
.................................................. Go to DH20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DH - Throttle Position (TP) Sensor/DH20 - Perform
Dynamic Response Test At Wide Open Throttle
DTC 171
Fuel system at adaptive limits, heated oxygen sensor unable to switch (Bank #1)
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
Page 48
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 171 - 180, ( 172 173 174
175 176 177 178 179 ) > System Information > System Diagnosis > 171 > Page 38
Page 49
Code 171 - 180: Testing and Inspection 172 - 179
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 172
Lack of heated oxygen sensor switches indicates lean (bank # 1).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 173
Lack of heated oxygen sensor switches. Indicates rich (bank #1).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 174
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 175
Fuel system at adaptive limits, heated oxygen sensor unable to switch (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 176
Lack of heated oxygen sensor switches, indicates lean (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 177
Lack of heated oxygen sensor switches, indicates rich (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
Page 50
DTC 178
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 179
Fuel system at lean adaptive limit at part throttle, system rich (bank #1).
Page 51
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 171 - 180, ( 172 173 174
175 176 177 178 179 ) > System Information > System Diagnosis > 171 > Page 39
Page 52
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
DTC 181
Fuel system at rich adaptive limit at part throttle, system lean (bank #1).
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
Page 53
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 181 - 190, ( 182 183 184
185 186 187 188 189 ) > System Information > System Diagnosis > 181
Page 54
Code 181 - 190: Testing and Inspection 181
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 172
Lack of heated oxygen sensor switches indicates lean (bank # 1).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 173
Lack of heated oxygen sensor switches. Indicates rich (bank #1).
KOER Hard Code ................................................................................................................................
....................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 174
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 175
Fuel system at adaptive limits, heated oxygen sensor unable to switch (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 176
Lack of heated oxygen sensor switches, indicates lean (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 177
Lack of heated oxygen sensor switches, indicates rich (bank #2).
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
Page 55
DTC 178
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H1 - Check For Diluted Engine Oil
DTC 179
Fuel system at lean adaptive limit at part throttle, system rich (bank #1).
Page 56
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 181 - 190, ( 182 183 184
185 186 187 188 189 ) > System Information > System Diagnosis > 181 > Page 44
Page 57
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
DTC 181
Fuel system at rich adaptive limit at part throttle, system lean (bank #1).
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
Page 58
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 181 - 190, ( 182 183 184
185 186 187 188 189 ) > System Information > System Diagnosis > 181 > Page 45
Page 59
Code 181 - 190: Testing and Inspection 184 - 189
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 184
Mass air flow higher than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G7 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G7 - Visually Inspect MAF Sensor
DTC 185
Mass air flow lower than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G7 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G7 - Visually Inspect MAF Sensor
DTC 186
Injector pulsewidth higher than expected or mass airflow sensor lower than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G9 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G9 - Visual Vacuum Checks
DTC 187
Injector pulsewidth lower than expected or Mass air flow higher than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G9 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G9 - Visual Vacuum Checks
DTC 188
Fuel system at lean adaptive limit at part throttle, system rich (bank #2).
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
DTC 189
Fuel system at rich adaptive limit at part throttle, system lean (bank #2).
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
DTC 193
Page 60
Flexible Fuel sensor circuit failure.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DE1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DE - Flexible Fuel (FF) Sensor/DE1 - KOEO Code
193: Check FF Sensor VPWR Circuit
DTC 194
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H5 - Cylinder Balance Diagnostic
Test Mode: MFI Engines
DTC 195
Page 61
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 181 - 190, ( 182 183 184
185 186 187 188 189 ) > System Information > System Diagnosis > 181 > Page 46
Page 62
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H5 - Cylinder Balance Diagnostic
Test Mode: MFI Engines
DTC 211
Profile ignition pickup circuit failure.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to NA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/NA - Ignition Diagnostic Monitor -- Distributor
Ignition/NA1 - Erratic Ignition
DTC 212
Loss of ignition diagnostic monitor input to powertrain control module or spark output circuit
grounded.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to NA2 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/NA - Ignition Diagnostic Monitor -- Distributor
Ignition/NA2 - Check IDM Circuit Continuity
DTC 213
Spark output circuit open.
KOER Hard Code ................................................................................................................................
..................................................... Go to PA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/PA - Spark Timing Check -- Distributor Ignition/PA1
- Check For Power to PCM
DTC 214
Cylinder identification circuit failure.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to DR1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DR - Cylinder Identification (CID) Sensor/DR1 - Will
Engine Start
DTC 215
Powertrain control module detected coil 1 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 216
Powertrain control module detected coil 2 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 217
Powertrain control module detected coil 3 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
Page 63
DTC 218
Loss of ignition diagnostic monitor signal-left side.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 219
Spark timing defaulted to 10 degrees, spark output circuit open.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
Page 64
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 191 - 200, ( 192 193 194
195 196 197 198 199 ) > System Information > System Diagnosis
Page 65
Code 191 - 200: Testing and Inspection
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 184
Mass air flow higher than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G7 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G7 - Visually Inspect MAF Sensor
DTC 185
Mass air flow lower than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G7 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G7 - Visually Inspect MAF Sensor
DTC 186
Injector pulsewidth higher than expected or mass airflow sensor lower than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G9 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G9 - Visual Vacuum Checks
DTC 187
Injector pulsewidth lower than expected or Mass air flow higher than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G9 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G9 - Visual Vacuum Checks
DTC 188
Fuel system at lean adaptive limit at part throttle, system rich (bank #2).
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
DTC 189
Fuel system at rich adaptive limit at part throttle, system lean (bank #2).
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
DTC 193
Page 66
Flexible Fuel sensor circuit failure.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DE1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DE - Flexible Fuel (FF) Sensor/DE1 - KOEO Code
193: Check FF Sensor VPWR Circuit
DTC 194
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H5 - Cylinder Balance Diagnostic
Test Mode: MFI Engines
DTC 195
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H5
Page 67
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 191 - 200, ( 192 193 194
195 196 197 198 199 ) > System Information > System Diagnosis > Page 50
Page 68
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint
Tests/H - Fuel Control/H5 - Cylinder Balance Diagnostic Test Mode: MFI Engines
DTC 211
Profile ignition pickup circuit failure.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to NA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/NA - Ignition Diagnostic Monitor -- Distributor
Ignition/NA1 - Erratic Ignition
DTC 212
Loss of ignition diagnostic monitor input to powertrain control module or spark output circuit
grounded.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to NA2 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/NA - Ignition Diagnostic Monitor -- Distributor
Ignition/NA2 - Check IDM Circuit Continuity
DTC 213
Spark output circuit open.
KOER Hard Code ................................................................................................................................
..................................................... Go to PA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/PA - Spark Timing Check -- Distributor Ignition/PA1
- Check For Power to PCM
DTC 214
Cylinder identification circuit failure.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to DR1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DR - Cylinder Identification (CID) Sensor/DR1 - Will
Engine Start
DTC 215
Powertrain control module detected coil 1 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 216
Powertrain control module detected coil 2 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 217
Powertrain control module detected coil 3 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 218
Page 69
Loss of ignition diagnostic monitor signal-left side.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 219
Spark timing defaulted to 10 degrees, spark output circuit open.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
Page 70
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 211 - 220, ( 212 213 214
215 216 217 218 219 ) > System Information > System Diagnosis
Page 71
Code 211 - 220: Testing and Inspection
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 184
Mass air flow higher than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G7 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G7 - Visually Inspect MAF Sensor
DTC 185
Mass air flow lower than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G7 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G7 - Visually Inspect MAF Sensor
DTC 186
Injector pulsewidth higher than expected or mass airflow sensor lower than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G9 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G9 - Visual Vacuum Checks
DTC 187
Injector pulsewidth lower than expected or Mass air flow higher than expected.
KOEO Memory Code ...........................................................................................................................
...................................................... Go to G9 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/G - In-Range MAF/TPS/Fuel Injector Pulse Width
Test/G9 - Visual Vacuum Checks
DTC 188
Fuel system at lean adaptive limit at part throttle, system rich (bank #2).
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
DTC 189
Fuel system at rich adaptive limit at part throttle, system lean (bank #2).
KOEO Memory Code ...........................................................................................................................
.................................................... Go to HA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/HA - Adaptive Fuel/HA1 - Check For Other Codes
DTC 193
Page 72
Flexible Fuel sensor circuit failure.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DE1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DE - Flexible Fuel (FF) Sensor/DE1 - KOEO Code
193: Check FF Sensor VPWR Circuit
DTC 194
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/H - Fuel Control/H5 - Cylinder Balance Diagnostic
Test Mode: MFI Engines
DTC 195
KOEO Memory Code ...........................................................................................................................
...................................................... Go to H5
Page 73
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 211 - 220, ( 212 213 214
215 216 217 218 219 ) > System Information > System Diagnosis > Page 54
Page 74
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint
Tests/H - Fuel Control/H5 - Cylinder Balance Diagnostic Test Mode: MFI Engines
DTC 211
Profile ignition pickup circuit failure.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to NA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/NA - Ignition Diagnostic Monitor -- Distributor
Ignition/NA1 - Erratic Ignition
DTC 212
Loss of ignition diagnostic monitor input to powertrain control module or spark output circuit
grounded.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to NA2 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/NA - Ignition Diagnostic Monitor -- Distributor
Ignition/NA2 - Check IDM Circuit Continuity
DTC 213
Spark output circuit open.
KOER Hard Code ................................................................................................................................
..................................................... Go to PA1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/PA - Spark Timing Check -- Distributor Ignition/PA1
- Check For Power to PCM
DTC 214
Cylinder identification circuit failure.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to DR1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DR - Cylinder Identification (CID) Sensor/DR1 - Will
Engine Start
DTC 215
Powertrain control module detected coil 1 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 216
Powertrain control module detected coil 2 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 217
Powertrain control module detected coil 3 primary circuit failure.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 218
Page 75
Loss of ignition diagnostic monitor signal-left side.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
DTC 219
Spark timing defaulted to 10 degrees, spark output circuit open.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.
Page 76
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 321 - 330, ( 322 323 324
325 326 327 328 329 ) > System Information > System Diagnosis
Page 77
Code 321 - 330: Testing and Inspection
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 327
Exhaust gas recirculation valve sensor circuit below minimum voltage.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DN1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN1 - Attempt to Generate DTC 337
KOER Hard Code ................................................................................................................................
.................................................... Go to DN1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN1 - Attempt to Generate DTC 337
KOEO Memory Code ...........................................................................................................................
................................................. Go to DN90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN90 - Check Intermittent Sensor
DTC 328
Exhaust gas recirculation valve position sensor closed voltage lower than expected.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DN25 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN25 - Check EVP Sensor and EGR Valve Operation
KOER Hard Code ................................................................................................................................
.................................................. Go to DN25 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN25 - Check EVP Sensor and EGR Valve Operation
KOEO Memory Code ...........................................................................................................................
................................................. Go to DN90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN90 - Check Intermittent Sensor
DTC 332
Insufficient exhaust gas recirculation flow detected.
KOER Hard Code ................................................................................................................................
.................................................. Go to DN40 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN40 - Verify Vacuum is Present at EGR Valve
KOEO Memory Code ...........................................................................................................................
.............................................. Go to DN110 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN110 - Check EGR Valve Function
Page 78
DTC 334
Exhaust gas recirculation valve position sensor closed voltage higher than expected.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DN20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN20 - Check For DTC 558
KOER Hard Code ................................................................................................................................
.................................................. Go to DN20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN20 - Check For DTC 558
KOEO Memory Code ...........................................................................................................................
............................................... Go to DN115 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN115 - Check EGR Vacuum w/Engine Running
DTC 335
Exhaust gas recirculation valve pressure sensor voltage higher or lower than expected during
KOEO self-test.
Page 79
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 321 - 330, ( 322 323 324
325 326 327 328 329 ) > System Information > System Diagnosis > Page 58
Page 80
KOEO Hard Code ................................................................................................................................
.................................................... Go to DL8 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DL - PFE/DPFE Sensor; EVR Solenoid
Testing/DL8 - Remove Garage Forced Air
DTC 336
Exhaust pressure high, exhaust gas recirculation valve pressure sensor voltage higher than
expected. This code does not apply to vehicles equipped with an EGR Valve Position (EVP)
sensor.
KOER Hard Code ................................................................................................................................
................................................... Go to DL25 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DL - PFE/DPFE Sensor; EVR Solenoid
Testing/DL25 - Check Exhaust Restriction
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DL90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DL - PFE/DPFE Sensor; EVR Solenoid
Testing/DL90 - All Continuous Memory EGR DTC: Intermittent Verification
Page 81
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 331 - 340, ( 332 333 334
335 336 337 338 339 ) > System Information > System Diagnosis > 332 - 336
Page 82
Code 331 - 340: Testing and Inspection 332 - 336
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 327
Exhaust gas recirculation valve sensor circuit below minimum voltage.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DN1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN1 - Attempt to Generate DTC 337
KOER Hard Code ................................................................................................................................
.................................................... Go to DN1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN1 - Attempt to Generate DTC 337
KOEO Memory Code ...........................................................................................................................
................................................. Go to DN90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN90 - Check Intermittent Sensor
DTC 328
Exhaust gas recirculation valve position sensor closed voltage lower than expected.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DN25 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN25 - Check EVP Sensor and EGR Valve Operation
KOER Hard Code ................................................................................................................................
.................................................. Go to DN25 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN25 - Check EVP Sensor and EGR Valve Operation
KOEO Memory Code ...........................................................................................................................
................................................. Go to DN90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN90 - Check Intermittent Sensor
DTC 332
Insufficient exhaust gas recirculation flow detected.
KOER Hard Code ................................................................................................................................
.................................................. Go to DN40 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN40 - Verify Vacuum is Present at EGR Valve
KOEO Memory Code ...........................................................................................................................
.............................................. Go to DN110 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN110 - Check EGR Valve Function
Page 83
DTC 334
Exhaust gas recirculation valve position sensor closed voltage higher than expected.
KOEO Hard Code ................................................................................................................................
.................................................. Go to DN20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN20 - Check For DTC 558
KOER Hard Code ................................................................................................................................
.................................................. Go to DN20 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN20 - Check For DTC 558
KOEO Memory Code ...........................................................................................................................
............................................... Go to DN115 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN115 - Check EGR Vacuum w/Engine Running
DTC 335
Page 84
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 331 - 340, ( 332 333 334
335 336 337 338 339 ) > System Information > System Diagnosis > 332 - 336 > Page 63
Page 85
Exhaust gas recirculation valve pressure sensor voltage higher or lower than expected during
KOEO self-test.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DL8 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DL - PFE/DPFE Sensor; EVR Solenoid
Testing/DL8 - Remove Garage Forced Air
DTC 336
Exhaust pressure high, exhaust gas recirculation valve pressure sensor voltage higher than
expected. This code does not apply to vehicles equipped with an EGR Valve Position (EVP)
sensor.
KOER Hard Code ................................................................................................................................
................................................... Go to DL25 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DL - PFE/DPFE Sensor; EVR Solenoid
Testing/DL25 - Check Exhaust Restriction
KOEO Memory Code ...........................................................................................................................
.................................................. Go to DL90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DL - PFE/DPFE Sensor; EVR Solenoid
Testing/DL90 - All Continuous Memory EGR DTC: Intermittent Verification
Page 86
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 331 - 340, ( 332 333 334
335 336 337 338 339 ) > System Information > System Diagnosis > 332 - 336 > Page 64
Page 87
Code 331 - 340: Testing and Inspection 337 - 339
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 337
Exhaust gas recirculation valve position sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DN5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN5 - Attempt to Generate DTC 327
KOER Hard Code ................................................................................................................................
.................................................... Go to DN5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN5 - Attempt to Generate DTC 327
KOEO Memory Code ...........................................................................................................................
................................................. Go to DN90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN90 - Check Intermittent Sensor
DTC 338
Engine coolant temperature lower than expected (thermostat test).
KOEO Memory Code ...........................................................................................................................
................................................ Go to DA100 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA100 - Engine Too Cold
DTC 339
Engine coolant temperature higher than expected (thermostat test).
KOEO Memory Code ...........................................................................................................................
................................................ Go to DA101 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA101 - Engine Too Hot
DTC 341
Octane adjust service pin open.
KOEO Hard Code ................................................................................................................................
..................................................... Go to KP1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KP - Octane Adjust/KP1 - Inspect Octane Adjust
Inline Connector
DTC 381
Frequent A/C clutch cycling.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to X130 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/X - Constant Control Relay Module (CCRM)/X130 -
Page 88
Check For Causes of Fast A/C Compressor Cycling
DTC 411
Cannot control RPM during KOER self-test low RPM check.
KOER Hard Code ................................................................................................................................
................................................... Go to KE15 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid/KE15 Engine RPM Error During Self-Test
DTC 412
Cannot control RPM during KOER self-test high RPM check.
KOER Hard Code ................................................................................................................................
..................................................... Go to KE1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid/KE1 - Check
For RPM Drop
Page 89
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 331 - 340, ( 332 333 334
335 336 337 338 339 ) > System Information > System Diagnosis > 332 - 336 > Page 65
Page 90
DTC 415
Idle Air Control system at maximum adaptive lower limit.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to KE30 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid
DTC 416
Idle Air Control system at upper adaptive learning limit.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to KE35 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid
DTC 452
Insufficient input from vehicle speed sensor to powertrain control module.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to DP1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DP - Vehicle Speed Sensor (VSS)
DTC 453
Servo leaking down (KOER IVSC test).
Refer to Cruise Control / Testing and Inspection.
DTC 454
Servo leaking up (KOER lVSC test)
Refer to Cruise Control / Testing and Inspection.
DTC 455
Insufficient RPM increase (KOER IVSC test).
Refer to Cruise Control / Testing and Inspection.
DTC 456
Insufficient RPM decrease (KOER IVSC test)
Refer to Cruise Control / Testing and Inspection.
DTC 457
Speed control command switch(s) circuit not functioning (KOEO IVSC test)
Refer to Cruise Control / Testing and Inspection.
DTC 458
Speed control command switch(s) stuck/circuit grounded (KOEO IVSC test)
Refer to Cruise Control / Testing and Inspection.
DTC 459
Page 91
Speed control ground circuit open (KOEO IVSC test)
Refer to Cruise Control / Testing and Inspection.
Page 92
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 341 - 350, ( 342 343 344
345 346 347 348 349 ) > System Information > System Diagnosis
Page 93
Code 341 - 350: Testing and Inspection
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 337
Exhaust gas recirculation valve position sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DN5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN5 - Attempt to Generate DTC 327
KOER Hard Code ................................................................................................................................
.................................................... Go to DN5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN5 - Attempt to Generate DTC 327
KOEO Memory Code ...........................................................................................................................
................................................. Go to DN90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN90 - Check Intermittent Sensor
DTC 338
Engine coolant temperature lower than expected (thermostat test).
KOEO Memory Code ...........................................................................................................................
................................................ Go to DA100 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA100 - Engine Too Cold
DTC 339
Engine coolant temperature higher than expected (thermostat test).
KOEO Memory Code ...........................................................................................................................
................................................ Go to DA101 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA101 - Engine Too Hot
DTC 341
Octane adjust service pin open.
KOEO Hard Code ................................................................................................................................
..................................................... Go to KP1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KP - Octane Adjust/KP1 - Inspect Octane Adjust
Inline Connector
DTC 381
Frequent A/C clutch cycling.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to X130 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/X - Constant Control Relay Module (CCRM)/X130 -
Page 94
Check For Causes of Fast A/C Compressor Cycling
DTC 411
Cannot control RPM during KOER self-test low RPM check.
KOER Hard Code ................................................................................................................................
................................................... Go to KE15 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid/KE15 Engine RPM Error During Self-Test
DTC 412
Cannot control RPM during KOER self-test high RPM check.
KOER Hard Code ................................................................................................................................
..................................................... Go to KE1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid/KE1 - Check
For RPM Drop
DTC 415
Page 95
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 341 - 350, ( 342 343 344
345 346 347 348 349 ) > System Information > System Diagnosis > Page 69
Page 96
Idle Air Control system at maximum adaptive lower limit.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to KE30 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid
DTC 416
Idle Air Control system at upper adaptive learning limit.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to KE35 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid
DTC 452
Insufficient input from vehicle speed sensor to powertrain control module.
KOEO Memory Code ...........................................................................................................................
.................................................... Go to DP1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DP - Vehicle Speed Sensor (VSS)
DTC 453
Servo leaking down (KOER IVSC test).
Refer to Cruise Control / Testing and Inspection.
DTC 454
Servo leaking up (KOER lVSC test)
Refer to Cruise Control / Testing and Inspection.
DTC 455
Insufficient RPM increase (KOER IVSC test).
Refer to Cruise Control / Testing and Inspection.
DTC 456
Insufficient RPM decrease (KOER IVSC test)
Refer to Cruise Control / Testing and Inspection.
DTC 457
Speed control command switch(s) circuit not functioning (KOEO IVSC test)
Refer to Cruise Control / Testing and Inspection.
DTC 458
Speed control command switch(s) stuck/circuit grounded (KOEO IVSC test)
Refer to Cruise Control / Testing and Inspection.
DTC 459
Speed control ground circuit open (KOEO IVSC test)
Page 97
Refer to Cruise Control / Testing and Inspection.
Page 98
Ford Mustang Workshop Manual (V8-302 5.0L COBRA (1995))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > Code 381 - 390, ( 382 383 384
385 386 387 388 389 ) > System Information > System Diagnosis
Page 99
Code 381 - 390: Testing and Inspection
NOTE
KOEO refers to Key On Engine Off (KOEO) KOER refers to Key On Engine Running (KOER) DTC
refers to Diagnostic Trouble Code (DTC) DTCs should be diagnosed in the order they are received.
DTC 337
Exhaust gas recirculation valve position sensor circuit above maximum voltage.
KOEO Hard Code ................................................................................................................................
.................................................... Go to DN5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN5 - Attempt to Generate DTC 327
KOER Hard Code ................................................................................................................................
.................................................... Go to DN5 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN5 - Attempt to Generate DTC 327
KOEO Memory Code ...........................................................................................................................
................................................. Go to DN90 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DN - EGR Valve Position Sensor/EGR Vacuum
Regulator Solenoid/DN90 - Check Intermittent Sensor
DTC 338
Engine coolant temperature lower than expected (thermostat test).
KOEO Memory Code ...........................................................................................................................
................................................ Go to DA100 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA100 - Engine Too Cold
DTC 339
Engine coolant temperature higher than expected (thermostat test).
KOEO Memory Code ...........................................................................................................................
................................................ Go to DA101 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/DA - Intake Air and Engine Coolant Temperature
Sensors/DA101 - Engine Too Hot
DTC 341
Octane adjust service pin open.
KOEO Hard Code ................................................................................................................................
..................................................... Go to KP1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KP - Octane Adjust/KP1 - Inspect Octane Adjust
Inline Connector
DTC 381
Frequent A/C clutch cycling.
KOEO Memory Code ...........................................................................................................................
.................................................. Go to X130 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/X - Constant Control Relay Module (CCRM)/X130 -
Page 100
Check For Causes of Fast A/C Compressor Cycling
DTC 411
Cannot control RPM during KOER self-test low RPM check.
KOER Hard Code ................................................................................................................................
................................................... Go to KE15 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid/KE15 Engine RPM Error During Self-Test
DTC 412
Cannot control RPM during KOER self-test high RPM check.
KOER Hard Code ................................................................................................................................
..................................................... Go to KE1 See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Pinpoint Tests/KE - Idle Air Control Control Solenoid/KE1 - Check
For RPM Drop
DTC 415
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