Page 1
OBDII Ford Code Definitions.
Ford Codes
Trouble
Code
Fault Location
Probable Cause
P0113
Intake Air Temperature Sensor Circuit
High Input
MAF sensor, Wiring
P0171
Fuel trim (FT) system too lean, bank 1
Intake/exhaust leak, AIR system, MAFNAF
sensor, fuel pressure/pump, injector(s), HO2S
P0174
Fuel Injection System Too Lean Bank 2
Vacuum leaks, PCV valve
P0191
Fuel Rail Pressure Sensor Circuit
Range/Performance
Wiring
P0300
Random Cylinder Misfire (Cylinder Not
Specified)
Spark plug(s), HT lead(s), injector(s), ignition
coil(s), low compression, wiring
P0301
Cylinder #1 Misfire
Engine mechanical fault, wiring, ignition/fuel
system, injector, ECT/MAF sensor, ECM
P0320
Ignition/Distributor Engine Speed Input
Circuit Malfunction
Wiring issues, Damaged reluctor ring, Missing
Wiring Shields
P0340
Camshaft Position Sensor “A” Circuit
Malfunction
Wiring, CMP sensor, ECM
P0401
Exhaust Gas Recirculation Flow
Insufficient Detected
P0420
Catalyst System Efficiency Below
Threshold Bank 1
Catalytic converter, wiring, HO2S 2
P0455
Evaporative emission (EVAP) system large leak detected
Hose connection(s), intake leak, EVAP
canister, EVAP canister purge valve
P1000 – P1099 (Fuel and air metering and auxiliary emission control)
Page 2
P1000
On Board Diagnostic System Readiness
Test Not Complete
-
P1001
Key On/Engine Running Not Able To
Complete
P1039
Vehicle Speed Signal Missing or Improper
P1051
Brake Switch Signal Missing or Improper
P1100 – P1199 (Fuel and air metering)
P1100
Mass Air Flow Sensor Intermittent
Wiring, MAF sensor
P1101
Mass Air Flow Sensor Out of Self-Test
Range
Wiring, battery, MAF sensor, ECM
P1102
Mass Air Flow Sensor In Range But Lower
Than Expected
Wiring, MAF sensor, ECM
P1105
Dual alternator upper -malfunction
Wiring, alternator, ECM
P1106
Dual alternator lower -malfunction
Wiring, alternator, ECM
P1107
Dual Alternator Lower Circuit Malfunction
Wiring, alternator, ECM
P1108
Dual Alternator Battery Lamp Circuit
Malfunction
Wiring, alternator (upper), alternator (lower),
ECM
P1109
IAT Sensor 2 Intermittent Condition
P1111
CAT System Fault
P1112
Intake Air Temperature Sensor
Intermittent Condition
Wiring, IAT sensor, ECM
P1114
Intake Air Temperature Sensor 2 Circuit
Low
Wiring short circuit to ground, IAT sensor,
ECM
P1115
Intake Air Temperature Sensor 2 Circuit
High
Wiring, IAT sensor, ECM
P1116
Engine Coolant Temperature Sensor is
Out of Self-Test Range
Wiring, cooling system fault, ECT sensor,
CHTsensor, ECM
Page 3
P1117
Engine Coolant Temperature Sensor
Intermittent
Wiring, cooling system fault, ECT sensor, CHT
sensor, ECM
P1118
Manifold Absolute Temperature Circuit
Low Input
Wiring, IAT sensor, ECM
P1119
Manifold Absolute Temperature Circuit
High Input
Wiring, IAT sensor, ECM
P1120
Throttle Position Sensor Out of Range
Wiring, TP sensor
P1121
Throttle Position Sensor Inconsistent with
Mass Air Flow Sensor
Wiring, MAF sensor, TP sensor, air leak
P1122
Throttle Position Sensor Circuit
Intermittent Low Voltage
P1123
Throttle Position Sensor Circuit
Intermittent High Voltage
P1124
Throttle Position Sensor Out of Self-Test
Range
Mechanical fault, TP sensor, ECM
P1125
Throttle Position Sensor Intermittent
Wiring, TP sensor
P1127
Exhaust Not Warm Enough Downstream
O2 Sensor Not Tested
Engine not running long enough prior to selftest
P1128
Front O2 Sensor Connectors Swapped
Wiring, connectors swapped
P1129
Downstream Oxygen Sensors Swapped
from Bank to Bank
Wiring, connectors swapped
P1130
Lack of Upstream Heated Oxygen Sensor
Switch Adaptive Fuel Limit Bank 1
Wiring, intake/fuel system, H02S, EGR system,
oil level, camshaft timing, cylinder
compression, ECM
P1131
Lack of Upstream Heated Oxygen Sensor
Switch Sensor Indicates Lean Bank 1
Wiring, intake/fuel system, H02S, EGR system,
oil level, camshaft timing, cylinder
compression, ECM
P1132
Lack of Upstream Heated Oxygen Sensor
Switch Sensor Indicates Rich Bank 1
Wiring, intake/fuel system, H02S, EGR system,
oil level, camshaft timing, cylinder
compression, ECM
Page 4
P1133
Bank 1 Fuel Control Shifted Lean
P1135
Pedal Position Sensor 'A' Circuit
Intermittent
P1136
Crankshaft Position Sensor And Or
Camshaft Position Sensor Input Signal to
PCM Concerns
P1137
Lack Of O2 Switches Bank 1 Sensor 2 Lean
Wiring, exhaust system leaking, H02S
P1138
Lack Of HO2S Switches Bank 1 Sensor 2
Rich
Wiring, exhaust system leaking, H02S
P1139
Water In Fuel Indicator Circuit
Malfunction
Wiring, bulb open circuit, instrument panel,
ECM
P1140
Water In Fuel Condition
Wiring, fuel filter, fuel/water separator
sensor,ECM
P1141
Fuel Restriction Indicator Circuit
Malfunction
P1142
Fuel Restriction Condition
P1145
Calculated Torque Error
P1148
Alternator 2 -circuit malfunction
Wiring, alternator, ECM
P1149
Alternator 2 -high input
Wiring, alternator, ECM
P1150
Lack of Upstream Heated Oxygen Sensor
Switch Adaptive Fuel Limit Bank 2
Wiring, intake/fuel system, H02S, EGR system,
oil level, camshaft timing, cylinder
compression, ECM
P1151
Lack of Upstream Heated Oxygen Sensor
Switch Sensor Indicates Lean Bank 2
Wiring, intake/fuel system, H02S, EGR system,
oil level, camshaft timing, cylinder
compression, ECM
P1152
Lack of Upstream Heated Oxygen Sensor
Switch Sensor Indicates Rich Bank 2
Wiring, intake/fuel system, H02S, EGR system,
oil level, camshaft timing, cylinder
compression, ECM
P1153
Bank 2 Fuel Control Shifted Lean
Page 5
P1154
Bank 2 Fuel Control Shifted Rich
P1155
Alternative Fuel Controller
P1156
Fuel Selector Switch Circuit
Wiring, fuel injector control module, ECM
P1157
Lack of O2 Switches Bank 2 Sensor 2
Indicates Lean
Wiring, exhaust system leaking, H02S
P1158
Lack of O2 Switches Bank 2 Sensor 2
Indicates Lean
P115E
Engine control module (ECM) -data
transmission fault
Throttle position (TP), wiring, ECM
P1168
Fuel Rail Pressure Sensor Condition Low
Pressure
Wiring, fuel level, low fuel pressure, fuel rail
pressure sensor
P1169
Fuel Rail Sensor In-Range High Failure
Wiring, high fuel pressure, fuel rail pressure
sensor
P1170
Engine Shut Off Solenoid Fault
P1171
Rotor Sensor Fault
P1172
Rotor Control Fault
P1173
Rotor Calibration Fault
P1174
Cam Sensor Fault
P1175
Cam Control Fault
P1176
Cam Calibration Fault
P1177
Synchronization Fault
P117A
Engine control module (ECM) -engine oil
temperature
Engine overheated, wiring, ECM
P1180
Fuel Delivery System Malfunction Low
P1181
Fuel Delivery System Malfunction High
Page 6
P1183
Engine Oil Temperature Sensor Circuit
Malfunction
P1184
Engine Oil Temperature Out Of Self Test
Range
Wiring, EOT sensor, ECM
P1185
FTS High Fuel Pump Temperature Sensor
High
P1186
Fuel Pump Temperature Sensor Low
P1187
Variant Selection
P1188
Calibration Memory Fault
P1189
Pump Speed Signal Fault
P1190
Calibration Resistor Out Of Range
P1191
Key Line Voltage
P1192
Voltage External
P1193
EGR Drive Overcurrent
P1194
Engine Control Unit A/D Converter
P1195
SCP HBCC Failed To Initialize
P1196
Key Off Voltage High
P1197
Key Off Voltage Low
P1198
Pump Rotor Control Underfueling
P1200 – P1299 (Fuel and air metering – injector circuit)
P1209
Injector Control Pressure System Fault
Oil quality, oil level, oil pressure too high/low,
low fuel pressure, fuel pressure regulator
control solenoid
P1210
Injector Control Pressure Above Expected
Level
Wiring, fuel pressure sensor, ECM
Page 7
P1211
Injector Control Pressure Sensor Above /
Below Desired
Oil quality, oil level, oil pressure too highllow,
low fuel pressure, fuel pressure regulator
control solenoid
P1212
Injector Control Pressure Not Detected
During Crank
Oil quality, oil level, oil pressure too highllow,
low fuel pressure, fuel pressure sensor, fuel
pressure regulator
P1213
Start Injector Circuit Malfunction
P1214
Pedal Position Sensor 'B' Circuit
Intermittent
P1215
Pedal Position Sensor 'C' Circuit Low Input
P1216
Pedal Position Sensor 'C' Circuit High
Input
P1217
Pedal Position Sensor 'C' Circuit
Intermittent
P1218
CID High
Injector control module, ECM
P1219
CID Stuck Low
Injector control module, ECM
P1220
Series Throttle Control Fault Detected
P1221
Traction Control System Malfunction
P1222
Traction Control Output Circuit
Malfunction
P1223
Pedal Demand Sensor B Circuit High Input
P1224
Throttle Position Sensor 'B' Out of SelfTest Range
P1227
Wastegate Failed Closed Over Pressure
EGR valve, MAF sensor, SC wastegate
actuator, SC
P1228
Wastegate Failed Open Under Pressure
EGR valve, MAF sensor, SC wastegate
actuator,SC
Page 8
P1229
Supercharger Intercooler Pump Not
Operating Condition
Wiring, SC intercooler pump, SC intercooler
pump relay, ECM
P1230
Low Speed Fuel Pump Fault Condition
P1231
High Speed Fuel Pump Relay Activated
P1232
Low Speed Fuel Pump Primary Circuit
Failure
Wiring, low speed fuel pump relay, ECM
P1233
Fuel Pump Driver Module Disabled Or Off
Line
Wiring, IFS switch, fuel pump, fuel pump
control module, ECM
P1234
Fuel Pump Driver Module Disabled Or Off
Line
Wiring, IFS switch, fuel pump, fuel pump
control module, ECM
P1235
Fuel Pump Control Out of Range
Wiring, fuel pump, fuel pump control module,
ECM
P1236
Fuel Pump Control Out of Range
Wiring, fuel pump, fuel pump control module,
ECM
P1237
Fuel Pump Secondary Circuit Fault
Wiring, fuel pump, fuel pump relay, fuel
pump control module
P1238
Fuel Pump Secondary Circuit Fault
Wiring, fuel pump, fuel pump relay, fuel
pump control module
P1239
Speed Fuel Pump Positive Feed Fault
P1243
Second Fuel Pump Faulty or Ground Fault
P1244
Alternator Load Input Failed High
Wiring, alternator, ECM
P1245
Alternator Load Input Failed Low
Wiring, drive belt, alternator, ECM
P1246
Alternator Load Input Failed
Wiring, alternator, drive belt, ECM
P1247
Turbo Boost Pressure Low
Wiring, hoses, MAP sensor, ECM
P1248
Turbo Boost Pressure Not Detected
Wiring, hoses, MAP sensor, ECM
P1249
Wastegate Control Valve Performance
Wiring, hoses, TC wastegate regulating valve,
TC wastegate actuator, ECM
Page 9
P1250
Lack Of Power To Fuel Pressure Regulator
Control Solenoid
P1252
Fuel Pressure Control Solenoid Valve 2
Malfunction
P1253
Pedal Correlation PDS1 and LPDS Low
P1254
Pedal Correlation PDS2 and LPDS High
P1255
Pedal Correlation PDS2 and LPDS Low
P1256
Pedal Correlation PDS1 and HPDS
P1257
Pedal Correlation PDS2 and HPDS
P1258
Pedal Correlation PDS1 and PDS2
P1260
Theft Detected - Vehicle Immobilized
P1261
Cylinder #1 High To Low Side Short
Wiring short circuit
P1262
Cylinder #2 High To Low Side Short
Wiring short circuit
P1263
Cylinder #3 High To Low Side Short
Wiring short circuit
P1264
Cylinder #4 High To Low Side Short
Wiring short circuit
P1265
Cylinder #5 High To Low Side Short
Wiring short circuit
P1266
Cylinder #6 High To Low Side Short
Wiring short circuit
P1267
Cylinder #7 High To Low Side Short
Wiring short circuit
P1268
Cylinder #8 High To Low Side Short
Wiring short circuit
P1270
Engine RPM Or Speed Limiter Reached
Engine over revved in neutral, wheel slippage
P1271
Cylinder #1 High To Low Side Open
Wiring open circuit
P1272
Cylinder #2 High To Low Side Open
Wiring open circuit
P1273
Cylinder #3 High To Low Side Open
Wiring open circuit
Page 10
P1274
Cylinder #4 High To Low Side Open
Wiring open circuit
P1275
Cylinder #5 High To Low Side Open
Wiring open circuit
P1276
Cylinder #6 High To Low Side Open
Wiring open circuit
P1277
Cylinder #7 High To Low Side Open
Wiring open circuit
P1278
Cylinder #8 High To Low Side Open
Wiring open circuit
P1280
Injection Control Pressure Out Of Range
Low
P1281
Injection Control Pressure Out Of Range
High
P1282
Excessive Injection Control Pressure
Wiring, fuel pressure regulator control
solenoid
P1283
Fuel pressure regulator control solenoid circuit malfunction
Wiring open circuit/short circuit to positive
P1284
Self-test not complete -fuel pressure
sensor failure
Wiring, fuel pressure sensor, ECM
P1285
Cylinder Head Over Temperature
Condition
Wiring, cooling system fault, CHT sensor
P1286
Fuel Pulse In Range But Lower Than
Expected
P1287
Fuel Pulse In Range But Higher Than
Expected
P1288
Cylinder Head Temperature Sensor Out of
Self-Test Range
Wiring, cooling system fault, CHT sensor
P1289
Cylinder Head Temperature Sensor Signal
Greater Than Self-Test Range
Wiring, cooling system fault, CHT sensor
P128A
Engine control module (ECM)/cylinder
head temperature (CHT) sensor -high
input
Wiring, CHT sensor, ECM
P1290
Page 11
Cylinder Head Temperature Sensor Signal
Less Than Self-Test Range
Wiring, cooling system fault, CHT sensor
P1291
Injector High Side Short To GND Or VBATT
Bank 1
High side short circuit to ground/positive,
injector(s), injector control module
P1292
Injector High Side Short To GND Or VBATT
- Bank 2
High side short circuit to ground/positive,
injector(s), injector control module
P1293
High Side Open Bank No. 1
High side open circuit, injector(s), injector
control module
P1294
High Side Open Bank No. 2
High side open circuit, injector(s), injector
control module
P1295
Multi-Faults Bank 1 With Low Side Shorts
Wiring short circuit to ground, injector control
module
P1296
Multi-Faults Bank 2 With Low Side Shorts
Wiring short circuit to ground, injector control
module
P1297
Injector High Sides Shorted Together
Wiring short circuit, injector control module
P1298
Injector control module -internal fault
Injector control module
P1299
Cylinder Head Temperature Sensor
Detected Engine Overheating Condition
Wiring, cooling system fault, CHT sensor
P1300 – P1399 (Ignition system or misfire)
P1300
Boost Pressure Malfunction
P1301
Boost Pressure Pressure High
P1302
Boost Pressure Pressure Low
P1303
EGR Calibration Fault
P1304
EGR Calibration High
P1305
EGR Calibration Low
P1306
Kickdown Relay Pull In Circuit Fault
Page 12
P1307
Kickdown Relay Hold Circuit Fault
P1308
A/C Clutch Circuit Fault
P1309
Misfire Detection Monitor Not enabled
CMP sensor, CKP sensor, ECT sensor, MAF
sensor, ECM
P1316
Ignition Driver Monitor Codes Detected
Wiring, injector control module, ECM
P1317
Ignition Driver Monitor Codes Not
Updated
P1330
Injector Control Pressure
P1331
Turbocharger / Supercharger Boost
Pressure Control Open Circuit
P1332
Turbocharger / Supercharger Boost
Pressure Control Circuit Low
P1334
Exhaust gas recirculation (EGR)/throttle
position sensor -range/performance
problem
Wiring, EGRlthrottle position sensor, ECM
P1335
EGR Position Sensor Minimum Stop
Performance
Hose leak/blockage, wiring, EGR valve
position sensor, ECM
P1336
Crankshaft Position Or Camshaft Position
Sensor Input Signal Error
Wiring, CMP sensor, CKP sensor, ECM
P1340
Camshaft Position Sensor 'B' Circuit
Malfunction
P1349
Fuel Level Sensor 'B' Circuit High Input
P1351
Ignition Diagnostic Monitor Circuit Input
Fault
P1352
Ignition Coil 'A' Primary Circuit
P1353
Ignition Coil 'B' Primary Circuit
P1354
Ignition Coil 'C' Primary Circuit
Page 13
P1355
Ignition Coil 'D' Primary Circuit
P1356
Loss Of Ignition Diagnostic Module Input
To PCM
P1357
Ignition Diagnostic Monitor Pulsewidth
Not Defined
P1358
Ignition Diagnostic Monitor Signal Out of
Self-Test Range
P1359
Spark Output Circuit Fault
P1360
Ignition Coil 'A' Secondary Circuit
Malfunction
P1361
Ignition Coil 'B' Secondary Circuit
Malfunction
P1362
Ignition Coil 'C' Secondary Circuit
Malfunction
P1363
Ignition Coil 'D' Secondary Circuit
Malfunction
P1364
Ignition Coil Primary Circuit Fault
P1365
Ignition Coil Secondary Circuit Failure
P1369
Engine Temperature Light Monitor Failure
P1378
Fuel Injection Control Module Circuit Low
Voltage
Fuse, wiring, FICM relay
P1379
Fuel Injection Control Module Circuit High
Voltage
Wiring, alternator, ECM
P1380
Variable Cam Timing Solenoid 'A' Circuit
Condition
Wiring, CMP actuator, ECM
P1381
Variable Cam Timing Over Advance Bank 1
Wiring, timing belt/chain, CMP actuator, low
oil pressure
Page 14
P1383
Variable Cam Timing Over Retarded Bank
1
Wiring, timing belt/chain, CMP actuator
P1385
Variable Cam Timing Solenoid 'B'
Malfunction
Wiring, CMP actuator, ECM
P1386
Variable Cam Timing Over Advance Bank 2
Wiring, timing belt/chain, CMP actuator, low
oil pressure
P1388
Variable Cam Timing Over Retarded Bank
2
Wiring, timing belt/chain, CMP actuator
P1389
Glow Plug Circuit High Side Low Input
P138B
Glow Plug Control Module System Voltage
Wiring, Defective glow plug control module,
Glow plug(s), PCM
P1390
Octane Adjust Out of Self-Test Range
P1391
Glow Plug Circuit Low Input Bank 1
P1392
Glow Plug Circuit High Input Bank 1
P1393
Glow Plug Circuit Low Input Bank 2
P1394
Glow Plug Circuit High Input Bank 2
P1395
Glow Plug Monitor Fault Bank 1
P1396
Glow Plug Monitor Fault Bank 2
P1397
System Voltage Out Of Self Test Range
Wiring, battery, alternator
P1399
Glow Plug Circuit High Side High Input
P1400 – P1499 (Emission control)
P1400
Differential Pressure Feedback Electronic
Sensor Circuit Low Voltage
Wiring, EGR pressure sensor, ECM
P1401
DPFE Sensor Circuit High
Wiring, EGR pressure sensor, ECM
P1402
EGR Metering Orifice Restricted
Page 15
P1403
Differential Pressure Feedback Electronic
Sensor Hoses Reversed
P1404
EGR Valve Stuck Closed
P1405
DPF EGR Sensor Circuit High Voltage
Detected
EGR hoses
P1406
DPFE Sensor Circuit Downstream Hose
EGR hoses
P1407
Exhaust Gas Recirculation Flow Out Of
Self-Test Range
P1408
EGR Flow Out Of Self-Test Range
Wiring, EGR hoses, EGR valve, EGR
solenoid,ECM
P1409
EGR Vacuum Regulator Solenoid Circuit
Malfunction
Wiring, EGR solenoid, ECM
P1410
EGR Barometric Pressure Sensor VREF
Voltage
P1411
Secondary Air Injection Downstream Flow
AIR hoses, AIR pump, AIR solenoid
P1413
Secondary Air Injection System Monitor
Circuit Low Voltage
Wiring, AIR solenoid, AIR pump, ECM
P1414
Secondary Air Injection System Monitor
Circuit High Voltage
Wiring, AIR solenoid, ECM
P141A
Exhaust Gas Recirculation Sensor “A”
Circuit Intermittent/Erratic
P1420
Catalyst Temperature Sensor
P1421
Catalyst Damage
P1422
Exhaust Gas Ignition Temperature Sensor
P1431
Misfire Monitor Disabled Unable to Learn
Trigger Wheel Profile
P1432
Thermostat Heater Control Circuit Failure
Wiring, engine thermostat heater, ECM
Page 16
P1433
A/C Refrigerant Temperature Circuit Low
P1434
A/C Refrigerant Temperature Circuit High
P1435
A/C Refrigerant Temperature Circuit
Range/Performance
P1436
A/C Evaporator Air Temperature Circuit
Low
Wiring, AlC evaporator temperature sensor,
ECM
P1437
A/C Evaporator Air Temperature Circuit
High
Wiring, AlC evaporator temperature sensor,
ECM
P1438
A/C Evaporator Air Temperature Circuit
Range/Performance
P1442
EVAP System Small Leak Detected
P1443
EVAP Control System Purge Control
Solenoid or Purge Control Valve Fault
Wiring, EVAP system hoses, EVAP
canister,EVAP canister purge valve
P1444
Purge Flow Sensor Circuit Input Low
P1445
Purge Flow Sensor Circuit High Condition
P1449
EVAP System Unable To Hold Vacuum
P1450
Unable to Bleed Up Bleed Fuel Tank
Vacuum
Wiring, EVAP system hoses, EVAP canister
purge valve, fuel filler cap blocked
P1451
EVAP Control System Canister Vent
Solenoid Circuit Malfunction
Wiring, EVAP canister purge valve, ECM
P1452
Unable To Bleed Up Fuel Tank Vacuum
P1455
Exhaust Gas Temperature Sensor 1
Range/Performance
P1457
Unable To Pull Vacuum In Tank
P145E
Positive crankcase ventilation (PCV)
heatercircuit malfunction
Wiring, PCV valve
Page 17
P1460
Wide Open Throttle Air Conditioning
Cutoff Circuit Malfunction
Wiring, WOT relay, ECM
P1461
Air Conditioning Pressure Sensor Circuit
High
Wiring, AlC refrigerant pressure sensor, ECM
P1462
Air Conditioning Pressure Sensor Circuit
Low
Wiring, AlC refrigerant pressure sensor, ECM
P1463
Air Conditioning Pressure Sensor
Insufficient Pressure Change
Wiring, AlC system -mechanical fault, AlC
refrigerant pressure sensor, AlC compressor
clutch
P1464
Air Conditioning Demand Out Of Self Test
Range
Wiring, AlC ON -during self-test, WOT relay
(AlC cut-out), ECM
P1465
Air Conditioning Relay Circuit Malfunction
P1466
A/C Refrigerant Temperature
Sensor/Circuit Malfunction
P1469
Low Air Conditioning Cycling Period
Wiring, AlC system -mechanical fault
P1473
Fan Secondary High With Fans Off
P1474
Low Fan Control Primary Circuit
Wiring, engine coolant blower motor relay,
ECM
P1477
Medium Cooling Fan Control Primary
Circuit Failure
Wiring, engine coolant blower motor relay,
ECM
P1479
High Fan Control Primary Circuit
Wiring, engine coolant blower motor relay,
ECM
P1480
Fan Secondary Low With Low Fans On
P1481
Fan Secondary Low Eith High Fans On
P1482
SCP
P1483
Power to Cooling Fan Exceeded Normal
Draw
Page 18
P1484
Open Power Ground To Variable Load
Control Module
P1485
Engine Gas Recirculation Valve Circuit
Malfunction
P1487
EGR Check Solenoid Circuit Failure
P1489
PCV Heater Control Circuit Fault
Wiring, crankcase breather heater
P1500 – P1599 (Vehicle or idle speed control)
P1500
Vehicle Speed Sensor
Wiring, VSS, ECM
P1501
Vehicle Speed Sensor Out Of Self Test
Range
Electro-magnetic interference
P1502
Vehicle Speed Sensor Intermittent
Wiring, VSS/ABS wheel speed sensors
P1504
Intake Air Control Circuit Malfunction
Wiring, lAC valve, ECM
P1505
Idle Air Control System at Adaptive Clip
P1506
Idle Air Control Overspeed Error
Wiring, lAC valve, vacuum leaks, ECM
P1507
Idle Air Control Under Speed Error
Wiring, lAC valve, hose blocked, ECM
P1512
Intake Manifold Runner Control Input
Error Bank 1
Wiring, mechanical fault, ECM
P1513
Intake Manifold Runner Control Stuck
Closed Bank 2
Wiring, mechanical fault, ECM
P1516
Intake Manifold Runner Control Input
Error Bank 1
Wiring, mechanical fault
P1517
Intake Manifold Runner Control Input
Error Bank 2
Wiring, mechanical fault
P1518
Intake Manifold Runner Control Fault
Stuck Open
Wiring, IMRC actuator, ECM
P1519
Intake Manifold Runner Control Fault
Stuck Closed
Wiring, IMRC actuator, ECM
Page 19
P151A
Intake manifold runner control (IMRC)
module -malfunction
Wiring, IMRC actuator, ECM
P1520
Intake Manifold Runner Control Circuit
Fault
Wiring, mechanical fault, vacuum hoses, IMRC
actuator, ECM
P1530
Open or Short to A/C Compressor Clutch
Circuit
P1531
Invalid Test Accelerator Pedal Movement
P1532
Intake Manifold Communication Control
Circuit Bank 2
P1533
AAI Circuit Malfunction
P1534
Inertia Switch Activated
P1536
Parking Brake Switch Circuit Failure
Wiring short circuit to ground/positive, wiring
open circuit, low brake fluid
P1537
Intake Manifold Runner Control Stuck
Open Bank 1
Wiring, hoses blocked, mechanical fault, ECM
P1538
Intake Manifold Runner Control Stuck
Open Bank 2
Wiring, hoses blocked, mechanical fault, ECM
P1539
Power to A/C Compressor Clutch Circuit
Exceeded Normal Current Draw
P1548
Engine Air Filter Restriction
P1549
Intake Manifold Communication Control
Circuit Malfunction
Wiring, intake manifold air control solenoid,
ECM
P1550
Power Steering Pressure Sensor
Malfunction
Wiring, PSP sensor, ECM
P1561
Brake Line Pressure Sensor Circuit
P1565
Speed Control Command Switch Out of
Range High
Wiring, CPP switch, BPP switch, cruise control
module, cruise control master switch, VSS
Page 20
P1566
Speed Control Command Switch Out of
Range Low
Wiring, CPP switch, BPP switch, cruise control
module, cruise control master switch, VSS
P1567
Speed Control Output Circuit Continuity
Wiring, CPP switch, BPP switch, cruise control
module, cruise control master switch, VSS
P1568
Speed Control Unable To Hold Speed
Wiring, CPP switch, BPP switch, cruise control
module, cruise control master switch, VSS
P1572
Brake Pedal Switch Circuit Malfunction
Wiring, BPP switch, brake fluid pressure (BFP)
switch, ECM
P1573
Throttle Position Not Available
P1574
Stop Lamp Switch Circuit
P1575
Pedal Position Out of Self Test Range
P1576
Accelerator Pedal Position Sensor Signal
Malfunction
P1577
Pedal Position Sensor Disagreement
P1578
ETC Power Less Than Demand
P1579
Electronic Throttle Control In Power
Limiting Mode
P1580
Electronic Throttle Monitor PCM Override
P1581
Electronic Throttle Monitor Malfunction
P1582
Electronic Throttle Monitor Data Available
Airbag deployment
P1583
Electronic Throttle Monitor Cruise Disable
P1584
Throttle Control Unit Input Circuit
Malfunction
P1585
Throttle Control Unit Malfunction
P1586
Throttle Control Unit Throttle Position
Malfunction
Page 21
P1587
Throttle Control Unit Modulated
Command Malfunction
P1588
Throttle Control Unit Detected Loss of
Return Spring
P1589
Throttle Control Unit Unable To Control
Desired Throttle Angle
P1600 – P1699 (ECM – computer output circuit)
P1600
Loss of KAM Power Open Circuit
P1605
PCM Keep Alive Memory Test Error
Conditions
Wiring, battery terminal corrosion, loose
battery connection, ECM
P1608
Watchdog Malfunction
P1610
Engine control module (ECM)
Incorrect programming
P1611
Engine control module (ECM)
Incorrect programming
P1615
Engine control module (ECM)
Incorrect programming
P1616
Engine control module (ECM)
Incorrect programming
P1617
Engine control module (ECM)
Incorrect programming
P1618
Engine control module (ECM)
Incorrect programming
P1625
Voltage to Vehicle Load Control Module
Fan Circuit Not detected
P1626
Voltage to Vehicle Load Control Module
Circuit Not detected
P1633
Keep Alive Power Voltage Too Low
Wiring, ECM
P1634
Data Output Link Circuit Failure
P1635
Tire / Axle Ratio Out of Acceptable Range
Incorrect tire size, incorrect axle ratio,
incorrect vehicle 10 configuration
Page 22
P1636
Inductive Signature Chip Communication
Error
ECM
P1639
Vehicle ID Block Corrupted or Not
Programmed
Incorrect vehicle 10 configuration, ECM
P1640
Powertrain DTCs Available in Another
Module
P-codes stored in another control module
P1641
Fuel Pump Driver Module Fault
Conditions
Wiring, fuel pump relay, fuel pump, ECM
P1642
Fuel Pump Monitor Circuit High Input
P1643
Fuel Pump Monitor Circuit Low Input
P1644
Fuel Pump Speed Control Circuit
Malfunction
P1646
Linear O2 Sensor Control Chip Bank 1
Non OEM accessories, ECM programming,
ECM
P1647
Linear O2 Sensor Control Chip Bank 2
Non OEM accessories, ECM programming,
ECM
P1650
Power Steering Pressure Switch Out of
Self-Test Range
Wiring, PSP switch, steering wheel turned
during self-test, ECM
P1651
Power Steering Pressure Switch Input
Malfunction
Wiring, vehicle towed with engine running,
PSP switch, OTC not erased, ECM
P1656
CAN Link PCM Circuit Network
P1657
Skip Shift 1 To 4 Upshift System Control
Circuit
P1660
Output Circuit Check Signal High
P1661
Output Circuit Check Signal Low
P1662
Injector control module relay -circuit
malfunction
Wiring, fuses, injector control module relay
Page 23
P1663
Fuel Demand Command Signal Circuit
Malfunction
Wiring open circuit/short circuit to ground,
injector control module, ECM
P1664
Injection Pump Control Module Faulty
P1667
Cylinder identification -circuit malfunction
Wiring open circuit/short circuit to ground,
injector control module relay, injector control
module,ECM
P1668
Engine control module (ECM)/injector
control module -communication error
Wiring open circuit/short circuit to ground,
injector control module relay, injector control
module,ECM
P1670
Electronic Feedback Signal Not Detected
Wiring open circuit/short circuit to ground,
injector control module relay, injector control
module, ECM
P1674
Control Module Software Corrupted
Wiring, software incompatibility, ECM
P1690
Wastegate Solenoid Circuit Malfunction
Wiring open circuit/short circuit to ground,
turbocharger (TC) wastegate control
solenoid,ECM
P1700 – P1799 (Transmission)
P1700
Transmission System Problems
P1701
Reverse Engagement Error Conditions
P1702
Transmission range (TR) sensor -circuit
intermittent
Incorrect adjustment, wiring, TR sensor
P1703
Brake On/Off Switch Out of Self-Test
Range
Wiring, brake pedal depressed during selftest, rear electronic module/lights control
module, BPP switch, ECM
P1704
Transmission System Conditions
Incorrect adjustment, wiring, TR sensor
P1705
Manual Lever Position Sensor Out of SelfTest Range
Wiring, TR sensor
P1706
High Vehicle Speed Observed in Park
Page 24
P1707
Transfer Case Neutral Indicator Hard Fault
Present
P1709
Park or Neutral Position Switch Out of
Self-Test Range
Wiring, PNP switch/CPP switch, ECM
P1710
No Change In Transmission Fluid
Temperature Signal
P1711
Transmission Fluid Temperature Sensor
Out of Self-Test Range
Transmission not at normal operating
temperature -repeat test
P1712
Trans Torque Reduction Request Signal
Malfunction
P1713
Transmission System Conditions
Wiring, TFT sensor
P1714
Shift Solenoid 'A' Fault
Wiring, SS, ECM/TCM
P1715
Shift Solenoid 'B' Fault
Wiring, SS, ECM/TCM
P1716
Transmission System Conditions
P1717
Transmission System Conditions
P1718
Transmission System Conditions
Wiring, TFT sensor
P1719
Steering Sensor High Input
P1720
Vehicle Speed Meter Circuit Malfunction
P1721
Gear 1 Incorrect Ratio
P1722
Gear 2 Incorrect Ratio
P1723
Gear 3 Incorrect Ratio
P1724
Gear 4 Incorrect Ratio
P1725
Insufficient Engine Speed Increase During
Self Test
Repeat test
P1726
Insufficient Engine Speed Decrease During
Self Test
Repeat test
P1727
Page 25
Transmission Slip Fault Conditions
P1728
Transmission Slip Error
TCC
P1729
4x4 Low Switch Error
Wiring, four wheel drive shift control module,
ECM
P1731
1-2 Shift Malfunction
P1732
Engine Overspeed Malfunction
P1733
Gearshift Load Control Malfunction
P1740
Transmission System Conditions
Wiring, TCC solenoid, ECM/TCM
P1741
Torque Converter Clutch Control Error
P1742
Torque Converter Clutch Solenoid Failed
On Conditions
P1743
Torque Converter Clutch Solenoid Failed
On Conditions
P1744
Torque Converter Clutch System Stuck in
Off Position
Wiring, TCC, TCM
P1745
Line Pressure Too High For Too Long
P1746
Electronic Pressure Control Solenoid Low
Conditions
Wiring, TFP solenoid, TCM, ECM
P1747
Electronic Pressure Control Solenoid 'A'
Short Circuit
Wiring, TFP solenoid, ECM
P1748
Electronic Pressure Control Malfunction
P1749
Electronic Pressure Control Solenoid
Failed Low Conditions
P1751
Shift Solenoid 1 Performance Conditions
P1754
Coast Clutch Solenoid Circuit Malfunction
Wiring, coast clutch solenoid
P1756
Shift Solenoid 2 Performance Conditions
Page 26
P1760
Transmission System Fault Conditions
Wiring, TFP solenoid, TCM
P1761
Shift Solenoid 3 Performance Conditions
P1762
Overdrive Band Failed Off
P1766
Shift Solenoid 'D' Performance
P1767
Torque Converter Clutch Solenoid Circuit
Malfunction
P1768
Performance / Normal / Winter Mode
Input Malfunction
P1770
Overrun Clutch Solenoid Valve
Malfunction
P1771
Throttle Position Sensor Open Circuit
P1772
Throttle Position Sensor Short Circuit
P1779
Transmission Control Indicator Lamp
Circuit Malfunction
P1780
Transmission Control Switch Circuit is Out
of Self-Test Range
Wiring, transmission control switch, ECM
P1781
4x4 Low Switch Out of Self-Test Range
Conditions
Wiring, four wheel drive shift control module,
4x4L switch, ECM
P1782
P/ES Circuit Out Of Self Test Range
P1783
Transmission Over-Temperature
Condition
Wiring, TFT sensor, TCM, ECM
P1784
Transmission System First or Reverse Gear
Fault Conditions
P1785
Transmission System First or Second Gear
Fault Conditions
P1786
Transmission System Second or Third
Gear Fault
Page 27
P1787
Transmission System Third or Fourth Gear
Fault
P1788
3-2 Timing/Coast Clutch Solenoid Circuit
Open Conditions
P1789
3-2 Timing/Coast Clutch Solenoid Circuit
Shorted Conditions
P1793
Ignition Supply Malfunction
P1795
Idle Switch Circuit Malfunction
P1797
Park/Neutral Position Switch Signal
Malfunction
P1800 – P1899 (Transmission)
P1804
Transmission 4-Wheel Drive High
Indicator Circuit Failure
P1806
Transmission 4-Wheel Drive High
Indicator Short Circuit To Battery
P1807
Transmission 4-Wheel Drive High
Indicator Short Circuit To Ground
P1808
Transmission 4-Wheel Drive Low Indicator
Circuit Failure
P1809
Transmission 4-Wheel Drive Low Indicator
Open Circuit
P1810
Transmission Fluid Pressure Valve Position
Switch Circuit
P1812
Transmission 4-Wheel Drive Mode Select
Circuit Failure
P1815
Transmission 4-Wheel Drive Mode Select
Short Circuit To Ground
P1819
Transmission Neutral Safety Switch Short
Circuit To Ground
Page 28
P1820
Transmission Transfer Case Clockwise
Shift Relay Coil Circuit Failure
P1822
Transmission Transfer Case Clockwise
Shift Relay Coil Short Circuit To Battery
P1824
Transmission 4-Wheel Drive Clutch Relay
Circuit Failure
P1826
Transmission 4-Wheel Drive Low Clutch
Relay Circuit To Battery
P1827
Transmission 4-Wheel Drive Low Clutch
Relay Circuit To Ground
P1828
Transmission Transfer Case Counter
Clockwise Shift Relay Coil Circuit Failure
P1829
Transmission Transfer Case Counter
Clockwise Shift Relay Coil Open Circuit
P1830
Transmission Transfer Case Counter
Clockwise Shift Relay Coil Short Circuit To
Battery
P1832
Transmission Transfer Case Differential
Lock-Up Solenoid Circuit Failure
P1834
Transmission Transfer Case Differential
Lock-Up Solenoid Short Circuit To Battery
P1838
Transmission Transfer Case Shift Motor
Circuit Failure
P1839
Transmission Transfer Case Shift Motor
Open Circuit
P1840
Transmission Transfer Case Shift Motor
Short Circuit To Battery
P1846
Transmission Transfer Case Contact Plate
'A' Circuit Failure
P1848
Transmission Transfer Case Contact Plate
'A' Short Circuit To Battery
Page 29
P1849
Transmission Transfer Case Contact Plate
'A' Short Circuit To Ground
P1850
Transmission Transfer Case Contact Plate
'B' Circuit Failure
P1854
Transmission Transfer Case Contact Plate
'C' Circuit Failure
P1855
Transmission Transfer Case Contact Plate
'C' Open Circuit
P1856
Transmission Transfer Case Contact Plate
'C' Short Circuit To Battery
P1857
Transmission Transfer Case Contact Plate
'C' Short Circuit To Ground
P1858
Transmission Transfer Case Contact Plate
'D' Circuit Failure
P1859
Transmission Transfer Case Contact Plate
'D' Open Circuit
P1861
Transmission Transfer Case Contact Plate
'D' Short Circuit To Ground
P1862
Transmission Transfer Case Contact Plate
Power Circuit Failure
P1863
Transmission Transfer Case Contact Plate
Power Open Circuit
P1865
Transmission Transfer Case Contact Plate
Power Short To Ground
P1866
Transmission Transfer Case System
Concern Servicing Required
P1867
Transmission Transfer Case Contact Plate
General Circuit Failure
P1869
Lamp Air Bag Warning Indicator Circuit
Open or Short to Ground
Page 30
P1876
Transmission Transfer Case 2-Wheel Drive
Solenoid Circuit Failure
P1877
Transmission Transfer Case 2-Wheel Drive
Solenoid Circuit Short To Battery
P1878
Transmission Transfer Case Disengaged
Solenoid Circuit Failure
P1881
Engine Coolant Level Switch Circuit Failure
P1882
Engine Coolant Level Switch Circuit Short
to Ground
P1883
Engine Coolant Level Switch Circuit Failure
P1884
Engine Coolant Level Lamp Circuit Short
to Ground
P1889
Drive Train Axles Bearings Problem
P1891
Transmission Transfer Case Contact Plate
Ground Return Open Circuit
P1900 – P1999 (Transmission)
P1900
Output Shaft Speed Circuit Intermittent
Malfunction
Wiring, poor connection, OSS sensor,
ECMITCM
P1901
Turbine Shaft Speed Sensor Circuit
Intermittent
Wiring, poor connection, TSS sensor,
ECMITCM
P1902
Kickdown Solenoid Relay Control Circuit
P1903
Kickdown Solenoid Circuit Low Voltage
P1904
Kickdown Solenoid Circuit High Voltage
P1908
Transmission Pressure Circuit Solenoid
Open or Short to Ground
P1909
Transmission Temperature Sensor Circuit
Open or Shorted to Power Or Ground
Page 31
P1910
Reversing lamps -circuit malfunction
Wiring, reverse gear position switch, ECM
P1919
Engine Coolant Temperature Signal
P1922
Fuel Additive Level Circuit Malfunction
P1924
Fuel Additive Level Circuit Low
P1925
Fuel Additive Level Circuit High
P1926
Fuel Additive Level Circuit
Range/Performance
P1927
Fuel Additive Level Too Low/Empty
P1928
Fuel Additive Level Pump Control
Circuit/Open
P1929
Fuel Additive Level Pump Control Circuit
Performance
P1930
Fuel Additive Level Too Low/Empty
P1931
Fuel Additive Pump Control Circuit/Open
P1932
Fuel Additive Pump Control Circuit
Performance
P1933
Fuel Additive Pump Control Circuit Low
P1934
Fuel Additive Pump Control Circuit High
P1935
Fuel Additive Level Low
P1936
Fuel Level Signal
P1937
Vehicle Speed Signal
P1938
Brake Switch/Sensor Signal
P1939
Clutch Switch/Sensor Signal
U2000 – U3000 (Manufacturer defined, common defination listed)
Page 32
U2023
Fault received from external node
CAN bus system failure
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