Eaton Transmission TRTS0050 User Manual
Troubleshooting Guide
Fuller Automated Transmissions
TRTS0050 EN-US
November 2015
RTAO-11710B-AC
RTAO-11710C-AC
RTAO-12710B-AC
RTAO-12710C-AC
RTAO-13710B-AC
RTAO-13710C-AC
RTAO-14710B-AC
RTAO-14710B-AS
RTAO-14710C-AC
RTAO-14710C-AS
RTAO-15710B-AC
RTAO-15710C-AC
RTAO-16710B-AC
RTAO-16710B-AS
RTAO-16710C-AC
RTAO-16710C-AS
RTLO-14918B-AS
RTLO-16918B-AS
RTLO-18918B-AS
RTLO-20918B-AS
Warnings and Cautions
WARNING
CAUTION
WARNING
CAUTION
Warnings and Cautions
Follow the specified procedures in the indicated order to avoid personal injury.
Follow the specified procedures in the indicated order to avoid equipment malfunction or damage.
Note: Additional relevant information not covered in the service procedure.
Before starting a vehicle:
1. Sit in the driver's seat
2. Place shift lever in neutral
3. Set the parking brake
Before working on a vehicle or leaving the cab with engine running:
4. Place shift lever in neutral
5. Set the parking brake
6. Block the wheels
When parking the vehicle or leaving the cab:
7. Place shift lever in neutral
8. Set the parking brake
Do not release the parking brake or attempt to select a gear until the air pressure is at the correct level.
To avoid damage to the transmission during towing:
9. Place shift lever in neutral
10. Lift the drive wheels off of the ground or disconnect the driveling
Do not operate vehicle if alternator lamp is lit or if gauges indicate low voltage.
Warnings and Cautions
Service Procedure
2-1
Table of Contents
Section 1: General Information
Suggested Tools ................................ ......................1-1
Transmission Models Included ................................1-2
Diagnostic Procedure ...............................................1-3
Fault Code Retrieval/Clearing ...................................1-4
Driving Techniques ..................................................1-6
Fault Code Isolation Procedure Index .....................1-10
Symptom Driven Diagnostics Index .......................1-11
Section 2: Fault Isolation Procedures
Electrical System Pretest ..........................................2-1
Power-Up Sequence Pretest ....................................2-3
Air Pretest ................................................................2-9
Component Code: 11 (SID 254, FMI 2,12)
System Manager .............................................2-13
Code 11 (SID 254, FMI 2,12),
System Controller Test ...................................2-14
Component Code: 12 (SID 233, FMI 12)
Transmission ECU ..........................................2-15
Code 12 (SID 233, FMI 12),Transmission
ECU Test ...... ...................................................2-16
Component Code: 13 (SID 236, FMI 4,5)
Power Connect Relay Coil ............................... 2-17
Code 13 (SID 236, FMI 4,5),
Power Connect Relay Coil Test .......................2-18
Component Code: 14 (SID 18, FMI 12)
Shift Lever ......................................................2-21
Code 14 (SID 18, FMI 12), Shift Lever Test ............2-22
Component Code: 15 (SID 57, FMI 2)
Shift Lever Data Link .......................................2-25
Code 15 (SID 57, FMI 2),
Shift Lever Data Link Test ...............................2-26
Component Code: 16 (SID 248, FMI 2)
Eaton Proprietary Link (EPL) ..........................2-31
Code 16 (SID 248, FMI 2),
Eaton Proprietary Link (EPL) Test ...................2-32
Component Code: 17 (SID 237, FMI 4)
Start Enable Relay Coil ....................................2-43
Code 17(SID 237,FMI 4),
Start Enable Relay Coil Test ............................2-44
Component Code: 31 (PID 62, FMI 3,4)
Engine Brake Relay Coil ..................................2-47
Code 31 (PID 62, FMI 3,4),
Engine Brake Relay Coil Test ...........................2-48
Component Code: 33 (PID 168, FMI 4)
Battery Voltage Supply ....................................2-51
Code 33 (PID 168, FMI 4),
Battery Voltage Supply Test ...........................2-52
System Code: 35 (SID 231, FMI 2,7)
Engine Control Failure ....................................2-55
Code 35 (SID 231, FMI 2,7),
Engine Control Failure Test .............................2-56
System Code: 41 (SID 56, FMI 7)
Range Failed to Engage ..................................2-63
Code 41 (SID 56, FMI 7)
, Range Failed to Engage Test .........................2-64
System Code: 42 (SID 61, FMI 7)
Splitter Failed to Engage ................................. 2-67
Code 42 (SID 6,1, FMI 7),
Splitter Failed to Engage Test .........................2-68
Component Code: 43 (SID 35,36, FMI 3,4,5)
Range Solenoid Valve .....................................2-71
Code 43 (SID 35,36, FMI 3,4,5),
Range Solenoid Valve Test .............................2-72
Component Code: 44 (PID 54, FMI 3,4,5)
In
ertia Brake Solenoid Coil ............................. 2-77
Code 44 (PID 54, FMI 3,4,5),
ertia Brake Solenoid Coil Test ...................... 2-78
In
Component Code: 46 (SID 37,38, FMI 4,5)
Splitter Solenoid Valve ...................................2-83
Code 46 (SID 37,38, FMI 4,5),
Splitter Solenoid Valve Test ............................ 2-84
Component Code: 51 (PID 60, FMI 2)
Rail Select Sensor ....................................... ...2-89
Code 51 (PID 60, FMI 2),
Rail Select Sensor Test ..................................2-90
Component Code: 52 (PID 59, FMI 2)
Gear Select Sensor .........................................2-99
Code 52 (PID 59, FMI 2),
Gear Select Sensor Test ..............................2-100
Component Code: 53 (SID 34, FMI 2)
Reverse Ball Switch ...................................... 2-109
Code 53 (SID 34, FMI 2),
Reverse Ball Switch Test ............................. 2-110
Component Code: 56 (PID 161, FMI 2)
Input Shaft Speed Sensor .............................2-115
Code 56 (PID 161, FMI 2),
Input Shaft Speed Sensor Test .................... 2-116
Component Code: 57 (PID 160, FMI 2)
Main Shaft Speed Sensor .............................2-119
Code 57 (PID 160, FMI 2),
Main Shaft Speed Sensor Test .....................2-120
Component Code: 58 (PID 191, FMI 2)
Output Shaft Speed Sensor ..........................2-123
Code 58 (PID 191, FMI 2),
Output Shaft Speed Sensor Test ...................2-124
Component Code: 61 (SID 39, FMI 5,6)
Rail Select Motor ..........................................2-127
Code 61 (SID 39, FMI 5,6),
Rail Select Motor Test ..................................2-128
Component Code: 63 (SID 40, FMI 5,6)
Gear Select Motor .........................................2-133
Table of Contents
Table of Contents
Code 63 (SID 40, FMI 5,6),
Gear Select Motor Test .................................2-134
Component Code: 65 (SID 251, FMI 4)
Low Motor Voltage .......................................2-139
Code 65 (SID 251, FMI 4),
Low Motor Voltage Test ...............................2-140
System Code: 71 (SID 60, FMI 7)
Stuck Engaged .............................................. 2-143
Code 71 (SID 60, FMI 7), Stuck Engaged Test .....2-144
System Code: 72 (SID 59, FMI 7)
Failed to Select Rail .......................................2 -149
Code 72 (SID 59, FMI 7),
Failed to Select Rail Test ...............................2-150
System Code: 73 (SID 58, FMI 7)
Failed to Engage Gear ...................................2-153
Code 73 (SID 58, FMI 7),
Failed to Engage Gear Test ...........................2-154
System Code: 74 (SID 54, FMI 7)
Failed to Sync Initial Engagement .................2-157
Code 74 (SID 54, FMI 7),
Failed to Sync Initial Engagement Test ..........2-158
Component Code: 83 (SID 18, FMI 14)
Shift Lever Missing .......................................2-161
Code 83 (SID 18, FMI 14),
Shift Lever Missing Test ...............................2-162
Appendix
Current Style Wiring Harness AutoSelect ................A-1
Current Style Wiring Harness AutoShift ...................A-3
Old Style Wiring Harness AutoSelect .......................A-5
Old Style Wiring Harness AutoShift .........................A-7
Check for Proper Clutch Operation ..........................A-9
Confirm Proper Clutch Adjustment ........................ A-10
Section 3: Symptom Isolation Procedures
Electrical System ......................................................3-1
Electrical System Test ..............................................3-2
Front Box Control ...................................................3-17
Front Box Control Test ...........................................3-18
Gear Display Power Supply ....................................3-29
Gear Display Power Supply Test ............................3-30
Start Enable Relay Contact .....................................3-37
Start Enable Relay Contact Test .............................3-38
AutoShift/AutoSelect Will Not Engage a Gear .........3-41
AutoShift/AutoSelect Will Not Engage a Gear Test .3-42
J-1587 Data Link ....................................................3-49
J-1587 Data Link Test ............................................3-50
Range System ........................................................3-57
Range System Test ................................................3-58
Splitter System ........................................... ... .........3-61
Splitter System Test ...............................................3-62
Up/Down Button ............................................ ... ......3-65
Up/Down Button Test .............................................3-66
AutoShift/AutoSelect Shift Complaint ..................... 3-67
AutoShift/AutoSelect Shift Complaint Test .............3-68
Transmission Air Leak ........................................... .3-73
Transmission Air Leak Test ....................................3-74
Neutral Lock Input ..................................................3-79
Neutral Lock Input Test ..........................................3-80
Suggested Tools
Air Gauges
• 2 (0-100) PSI Air Gauges
Volt/Ohm Meter
• SPX / Kent-Moore 1 (800) 328-6657
• P/N 5505027
PC-based Service Tool “ServiceRanger”
• Contact your OEM
Data Link Tester
• Eaton Service Parts 1 (800) 826-HELP (826-4357)
General Information
• P/N MF-KIT-04
Download Harness Kit
• Eaton Service Parts 1 (800) 826-HELP (826-4357)
• K-3481
Test Adapter Kit
• SPX / Kent-Moore 1 (800) 328-6657
• Eaton Test Adapter Kit P/N J-43318
• Serial Link Adapter Kit P/N J-38351-B
For more information call 1-800-826-HELP (826-4357)
1-1
General Information
Transmission Models Included
18-Speed
General Information
10-Speed
1-2
General Information
Diagnostic Procedure
Follow the flow cart below for all AutoSelect/AutoShift failures. Perform tests and procedures as directed by the flowchart.
Key on.
Retrieve active codes. Note: Scan tool
or P.C. may be required if service light
is not avialable.
• Perform Electrical System Pretest
Active codes?
YES
NO
• Refer to the Fault Code Isolation
Procedure Index to select a Fault
Code Isolation Procedure
Observe Gear Display
Can a solid "N"
be observed in
Gear Display ?
YES
Retrieve Inactive Codes.
Inactive Codes?
NO
NO
YES
Will engine crank ?
YES
• Perform Gear Display Test
• Record and clear codes
• Perform Driving Technique to reproduce
the inactive fault code
• Perform Electrical System Pretest
• Perform Air Pretest
• Refer to the Fault Code Isolation
Procedure Index to select
a fault code isolation procedure
• Perform Power-Up Sequence Pretest
• Perform Front Box Control Test
NO
1-3
Symptom?
NO
Test complete.
YES
• Perform Electrical System Pretest
• Perform Air Pretest
• Perform Power-Up Sequence Pretest
• Refer to Symptom-Driven Diagnostics
Table to select a symptom isolation procedure
General Information
General Information
SERVICE
1 Flash
Short
pause
(1/2 sec)
Short
pause
(1/2 sec)
Long Pause
(3-4 sec)
3 Flashes
2 Flashes
Code 13 Code 21
SERVICE
SERVICE
SERVICE SERVICE
SERVICE
1 Flash
SERVICE
Fault Code Retrieval/Clearing
Retrieving Fault Codes
Retrieve fault codes by enabling the system’s self-diagnostic mode.
Note: You can also use a PC- based service tool, such as the ServiceRanger to retrieve fault codes.
1. Place the shift lever in neutral.
2. Set the parking brake.
3. Turn the ignition key on but do not start the engine. If the engine already running, you may still retrieve codes, however,
do not engage the starter if the engine stalls.
4. To Retrieve Active Codes: Start with the key in the on position. Turn the key off and on two times within five seconds
ending with the key in the on position. After five seconds, the service lamp begins flashing two-digit fault codes. If no
faults are active, the service light will not flash.
2 times
off
on
5. To Retrieve Inactive Codes: Start with the key in the on position. Turn the key off and on four times within five seconds
ending with the key in the on position. After five seconds, the service lamp begins flashing two-digit fault codes. If there
are no inactive faults, the service light will not flash.
6. Observe the sequence of flashes on the indicator lamp and record the codes. A one to two second pause separates each
stored code, and the sequence automatically repeats after all codes have been flashed.
off
4 times
on
1-4
General Information
Clearing Fault Codes
The following procedure clears all inactive fault codes from the ECU’s memory. Active fault codes are automatically cleared when
the fault has been corrected.
Note: You may use a PC-based Service Tool, such as ServiceRanger, to clear fault codes.
1. Place the shift lever in neutral.
2. Set the parking brake.
3. Turn the ignition key on but do not start the engine.
4. Start with the key in the on position. Turn the key off and on six times within five seconds ending with the key in the on
position.
6 times
off
Note: If the codes have been successfully cleared, the service lamp will come on and stay on for five seconds.
5. Turn key off and allow the system to power down.
on
1-5
General Information
Driving Techniques
General Information
Fault
Codes
11 254 2,12 System Control-
12 233 12 Transmission
13 236 4,5 Power Connect
14 18 12 Shift Lever Component Key on. If the fault is present, the system should
PID SID FMI Description Type of Code Driving Technique
Component Key on. If the fault is present, the system should
ler
Component Key on. If the fault is present, the system should
Controller
Component Key on. If the fault is present, the system should
Relay Coil
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat, vibration and selecting different shift lever positions.
15 57 2 Shift Lever Data
16 248 2 Eaton
17 237 4 Start Enable
Link
Proprietary Link
(EPL)
Relay Coil
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
1-6
General Information
Fault
Codes
31 62 3,4 Engine Brake Re-
33 168 4 Battery Voltage
35 231 2,7 Engine Control
41 56 7 Range Failed to
PID SID FMI Description Type of Code Driving Technique
lay Coil
Supply
Failure
Engage
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
System Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat, vibration and varying levels
of throttle demand.
System Operate the vehicle and perform several range up-
shifts and downshifts. The failure is detected after
5 consecutive attempts to complete the same type
of range shift. Several shifts (ten or more) may be
necessary before the ECU confirms the failure.
42 61 7 Splitter Failed to
Engage
43 35 or 36 3,4,5 Range Solenoid
Valve
44 54 3,4,5 Interia Brake So-
lenoid Coil
46 37 or 38 4,5 Splitter Solenoid
Valve
System Operate the vehicle and perform several range up-
shifts and downshifts. The failure is detected after
5 consecutive attempts to complete the same type
of range shift. Several shifts (ten or more) may be
necessary before the ECU confirms the failure.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
1-7
General Information
General Information
Fault
Codes
51 60 2 Rail Select Sen-
52 59 2 Gear Select Sen-
53 34 2 Reverse Ball
56 161 2 Input Shaft
57 160 2 Main Shaft
PID SID FMI Description Type of Code Driving Technique
sor
sor
Switch
Speed Sensor
Speed Sensor
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
Component Select a reverse gear (repeatedly).
Component Select a forward gear and drive at a steady speed
no slower than 10 m.p.h. It may be necessary to
operate the vehicle for a prolonged period of time
if the cause of failure is related to heat and vibration.
Component Select a forward gear and drive at a steady speed
no slower than 10 m.p.h. It may be necessary to
operate the vehicle for a prolonged period of time
if the cause of failure is related to heat and vibration.
58 191 2 Output Shaft
61 39 5,6 Rail Select Motor Component Key on. If the fault is present, the system should
63 40 5,6 Gear Select Mo-
Speed Sensor
tor
Component Select a forward gear and drive at a steady speed
no slower than 10 m.p.h. It may be necessary to
operate the vehicle for a prolonged period of time
if the cause of failure is related to heat and vibration.
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
1-8
General Information
Fault
Codes
65 251 4 Low Motor Volt-
71 60 7 Stuck Engaged System Engage LO gear and allow the vehicle to slowly
72 59 7 Failed to Select
73 58 7 Failed to Engage
PID SID FMI Description Type of Code Driving Technique
Component Key on. If the fault is present, the system should
age
System Complete several shifts while the vehicle is in mo-
Rail
System Complete several shifts while the vehicle is in mo-
Gear
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
move forward. While the vehicle is in motion,
move the shift lever to Reverse LO and slowly
bring the vehicle to a stop. The vehicle will shift
into Reverse LO. Several shifts (ten or more) may
be necessary before the ECU confirms the failure.
tion, including selections from neutral. Allow the
transmission to complete several automatic
shifts.
tion, including selections from neutral. Allow the
transmission to complete several automatic
shifts.
74 54 7 Failed to Syn Ini-
tial Engagement
83 18 14 Shift Lever Miss-
ing
System With vehicle stopped, select a drive gear and fully
depress the clutch pedal. Return transmission to
neutral. Repeat several times.
Component Key on. If the fault is present, the system should
automatically detect the problem and set the code.
If the fault is not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible
triggers include heat and vibration.
1-9
General Information
Fault Code Isolation Procedure Index
General Information
Fault
Codes
11 254 2,12 System Controller Component 2-13
12 233 12 Transmission Controller Component 2-15
13 236 4, 5 Power Connect Relay Coil Component 2-17
14 18 12 Shift Lever Component 2-21
15 57 2 Shift Lever Data Link Component 2-25
16 248 2 Eaton Proprietary Link Component 2-31
17 237 4 Start Enable Relay Coil Component 2-43
31 62 3,4 Engine Brake Relay Coil Component 2-47
33 168 4 Battery Voltage Supply Component 2-51
35 231 2,7 Engine Control Failure System 2-55
41 56 7 Range Failed to Engage System 2-63
42 61 7 Splitter Failed to Engage System 2-67
43 35 or
44 54 3,4,5 Inertia Brake Solenoid Coil Component 2-77
S I D P I D FM I
3,4,5 Range Solenoid Valve Component 2-71
36
Description Type of Code Page Number
46 37 or
38
51 60 2 Rail Select Sensor Component 2-89
52 59 2 Gear Select Sensor Component 2-99
53 34 2 Reverse Ball Switch Component 2-109
56 161 2 Input Shaft Speed Sensor Component 2-115
57 160 2 Main Shaft Speed Sensor Component 2-119
58 191 2 Output Shaft Speed Sensor Component 2-123
61 39 5,6 Rail Select Motor Component 2-127
63 40 5,6 Gear Select Motor Component 2-133
65 251 4 Low Motor Voltage Component 2-139
71 60 7 Stuck Engaged System 2-143
72 59 7 Failed to Select Rail System 2-149
73 58 7 Failed to Engage Gear System 2-153
74 54 7 Failed to Sync Initial Engagement System 2-157
83 18 14 Shift Lever Missing Component 2-161
4,5 Splitter Solenoid Valve Component 2-83
1-10
General Information
Symptom Driven Diagnostics Index
Symptom Isolation Procedure Page Number
Electrical System Test Electrical System Test 3-1
If "-" is displayed on the Gear Display, and there are no
active or inactive codes
If the Gear Display is not working, and there are no ac-
tive or inactive codes
If the engine does not start with the Shift Lever is in
neutral, and there are no active or inactive codes
If the transmission does not engage a gear, and there
are no active or inactive codes
If the PC-based Service Tool does not work J-1587 Data Link Test 3-49
If the transmission does not perform range shifts, and
there are no active or inactive fault codes
If the transmission does not perform Splitter Shifts,
and there are no active or inactive fault codes
If unable to shift the transmission with the Up/Down
Buttons, and there are no Active or Inactive codes
If a shift complaint exists and there are no Active or
Inactive codes
If the transmission has an air leak and there are no
Active or Inactive fault codes
If the Auto Neutral feature is not working Neutral Lock Input Test 3-79
Front Box Control Test 3-17
Gear Display Power Supply Test 3-29
Start Enable Relay Contact Test 3-37
AutoShift/AutoSelect will not Engage a Gear Test 3-41
Range System Test 3-57
Splitter System Test 3-61
Up/Down Button Test 3-65
AutoShift/AutoSelect Shift Complaint Test 3-67
Transmission Air Leak Test 3-73
1-11
General Information
General Information
This page left blank intentionally.
1-12
Electrical System Pretest
Fault Isolation Procedures
Overview
The test does not relate to any specific fault code, but must be
completed before performi ng Fault Code Isolati on Table procedures. The pretest verifies the batteries are fully charged.
Detection
There is no detection process specifically for the basic electrical supply. However, failures of this type are generally detected
by the transmission or driver as some other type of fault code
or symptom.
Fallback
There is no fallback for the electrical pretest, however, it may
effect other systems.
Required Tools
• Basic Hand Tools
• Eaton Test Adapter Kit
• Digital Volt/Ohm Meter
• Troubleshooting Guide
• Battery Load Tester
Possible Causes
This pretest can be used for any of the following:
• Low Batteries
• Starter/Battery connections
2-1
VOLTS
V
COM
–
A
–
+
+
Fault Isolation Procedures
Electrical System Pretest
Step A Procedure Condition Action
1. Key off.
2. Inspect starter/battery
connections for integrity.
3. Measure voltage
across battery.
If voltage is 11 to 13 volts on a 12
volt system or
22 to 26 on a 24 volt
system
If voltage is outside of
range
Go to Step V.
Repair or replace battery/s and
charging system as required.
Repeat this step.
Fault Isolation Procedures
Step V Procedure Condition Action
1. Key off.
2. Load Test the Battery/
s.
If the battery/s maintain
the specified load
If the battery/s fail the
load test
Test Complete.
Replace the damaged battery/s and
repeat this step.
2-2
Power-Up Sequence Pretest
Fault Isolation Procedures
Overview
A failure during the self-check indicates a failure of the Shift
Control.
Detection
The power-up self-check is performed automatically each time
the key is turned on. Turn the key on and watch the service
lamp. If power-up stops with the service lamp constantly on,
or it never comes on, self-check has failed.
Fallback
If self-check fails, the product cannot perform any operations.
Required Tools
• Basic Hand Tools
• Eaton Test Adapter Kit
• Digital Volt/Ohm Meter
• Troubleshooting Guide
Possible Causes
This test can be used for the following:
• Shift Control
• Vehicle Harness
2-3
Fault Isolation Procedures
Power-Up Sequence Pretest
Step A Procedure Condition Action
1. Key on.
2. Observe service
lamp.
If service lamp lights for
one second and goes off
If service lamp never
comes on
If service lamp is on
steady
Test complete.
Go to Step B.
Replace Eaton supplied shift tower
containing system manager and
shift lever. If vehicle has the
System Manager ECU mounted in a
separate location from the Shift
Lever, go to Step C.
Step B Procedure Condition Action
1. Key off.
2. Disconnect shift lever 24-way
connector.
3. Key on.
4. Measure voltage
between shift lever
24-way connector
pins A1 and B1.
If voltage is within 1 volt
of battery voltage
Replace shift lever. Go to Step A.
Fault Isolation Procedures
If voltage is outside of
range
Repair or replace tower harness.
Go to Step A.
2-4
Fault Isolation Procedures
Power-Up Sequence Pretest , continued
Step C Procedure Condition Action
1. Key on.
2. Connect hand-held diagnostic
tool to transmission diagnostic
port.
3. Select monitor data and view
"TRANS_RNG_SEL".
4. Disconnect shift lever 24-way
5. Place a jumper
between shift lever
24-way connector
pins:
• A1 and B3
• B1 and B4
If TRANS_RNG_SEL
reads "HI"
If hand-held diagnostic
tool does not read
TRANS_RNG_SEL "HI"
Go to Step D.
Go to Step E.
2-5
Fault Isolation Procedures
Power-Up Sequence Pretest , continued
Step D Procedure Condition Action
1. Key on.
2. Remove jumpers.
3. Place a jumper
between shift lever
24-way connector
pins:
• B1 and B3
• A1 and B4
If TRANS_RNG_SEL
reads "LO"
If hand-held diagnostic
tool does not read
TRANS_RNG_SEL "LO"
Replace shift lever. Go to Step A.
Go to Step E.
Fault Isolation Procedures
2-6
Fault Isolation Procedures
Power-Up Sequence Pretest , continued
Step V Procedure Condition Action
1. Disconnect system manager 32way connector.
2. Measure resistance
between system
manager 32-way
connector pins and shift lever
24-way connector pins:
• 32-way D8 and 24-way B8
• 32-way C8 and 24-way B7
• 32-way D9 and 24-way B6
• 32-way C9 and 24-way B5
• 32-way C13 and 24-way B4
• 32-way D13 and 24-way B3
If resistance for each
measurement is 0 to .3
ohms
If any measurement is
outside of range
Replace system manager ECU. Go
to Step A.
Repair or replace tower har ness as
required. Go to Step A.
2-7
Fault Isolation Procedures
Power-Up Sequence Pretest , continued
Fault Isolation Procedures
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2-8
Air Pretest
r
Fault Isolation Procedures
Overview
The pretest does not relate to any specific fault code, but must
be completed before performing Fault Code Isolation Table
procedures. The pretest verifies that the basic air input is OK
before testing individual system functions.
Detection
There is no detection process specifically for the basic air supply. However, failures of this type are generally detected by the
transmission or driver as some other type of fault code or
symptom.
Fallback
There is no fallback mode for air pretest, however, it may effect
other systems.
Required Tools
• Basic Hand Tools
• 0-100 PSI Air Pressure Gauge
• Troubleshooting Guide
Possible Causes
This pretest can be used for any of the following:
• Low Air Pressure
• Contaminated Air
• Air Filter / Regulator
2-9
Air filter/regulato
Fault Isolation Procedures
Air Pretest
Step A Procedure Condition Action
1. Key off.
2. Install a 0 to 100 PSI air gauge
in the requlated test port of the
air filter/regulator.
3. Start engine and
allow air pressure to
build to governor cutoff.
If air pressure cuts off at
90 to 120 PSI
If air pressure is outside
of range
Go to Step B.
Repair vehicle air system as
required. Repeat this step.
Fault Isolation Procedures
Step B Procedure Condition Action
1. Key off.
2. Monitor air pressure. If vehicle maintains air
pressure
If vehicle loses air
pressure
Go to Step C.
Repair vehicle air system as
required. Repeat this step.
2-10
Fault Isolation Procedures
Air Pretest, continued
Step C Procedure Condition Action
1. Read air pressure
gauge installed at the
requlated port.
If air pressure is 55 to 65
PSI
If air pressure is outside
of range
Test Complete.
Repair vehicle air system as
required. Repeat this Step V.
Step V Procedure Condition Action
1. Remove air supply
line to the air filter/
regulator and check
air flow.
If air flows from the
supply line
If air does not flow from
the supply line
Replace air filter/regulator. Go to
Step C.
Repair vehicle air supply to the
regulator. Go to Step C.
2-11
Air Pretest, continued
Fault Isolation Procedures
Fault Isolation Procedures
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2-12
Component Code: 11
(SID 254, FMI 2,12)
System Manager
Fault Isolation Procedures
Overview
This fault code indicates an internal failure of the System Manager ECU.
Detection
The System Manager checks the program memory every time
the key is turned on. If the System Manager ECU is able to detect a failure within its own memory, it sets this fault code.
Fallback
This fault causes an In Place fallback while moving and a selfcheck failure if it occurs during power-up.
Required Tools
• Basic Hand Tools
• AutoSelect/AutoShift Troubleshooting Guide
Possible Causes
This fault can be caused by any of the following:
• Improper configuration software
• Fault System Manager ECU
2-13
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