2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 887
瀚慖f the test light stays ON after the 10 seconds, test the motor control A circuit for a short to voltage. If all circuits and connections test
normal, reprogram the TCCM. If the DTC continues to set replace the TCCM.
瀚慖f the test light does not illuminate at all, test the motor control A circuit for an open or short to ground. If all circuits and connections test
normal, reprogram the TCCM. If the DTC continues to set replace the TCCM.
9. Using the purple probes J 35616-4A, connect a test lamp between the motor control B circuit, TCEM X1 pin D and a good ground.
10. Using the Transfer Case Motor Control function of the Special Function feature of the scan tool, command the motor forward and reverse.
When commanded Forward/Counter CW, the test light should turn OFF. When commanded Reverse/Clockwise, the test light should
illuminate dimly for 10 seconds and turn OFF.
瀚慖f the test light stays ON after the 10 seconds, test the motor control B circuit for a short to voltage. If all circuits and connections test
normal, reprogram the TCCM. If the DTC continues to set replace the TCCM.
瀚慖f the test light does not illuminate at all, test the motor control B circuit for an open or short to ground. If all circuits and connections test
normal, reprogram the TCCM. If the DTC continues to set replace the TCCM.
11. Using the purple probes J 35616-4A, connect a test lamp between the motor control A circuit, TCEM X1 pin A and the B+ terminal of
EL-49742 - harness, red terminal.
12. Using the Transfer Case Motor Control function of the Special Function feature of the scan tool, command the motor forward and reverse.
When commanded Forward/Counter CW, the test light should illuminate dimly for 10 seconds and turn OFF. When commanded
Reverse/Clockwise, the test light should illuminate brightly for 10 seconds and turn OFF.
瀚慖f the test light stays ON after the 10 seconds, test the motor control A circuit for a short to voltage. If all circuits and connections test
normal, reprogram the TCCM. If the DTC continues to set replace the TCCM.
瀚慖f the test light does not illuminate at all, test the motor control A circuit for an open or short to ground. If all circuits and connections test
normal, reprogram the TCCM. If the DTC continues to set replace the TCCM.
13. Using the purple probes J 35616-4A, connect a test lamp between the motor control B circuit, TCEM X1 pin D and the B+ terminal of
EL-49742 - harness, red terminal.
14. Using the Transfer Case Motor Control function of the Special Function feature of the scan tool, command the motor forward and reverse.
When commanded Forward/Counter CW, the test light should illuminate brightly for 10 seconds and turn OFF. When commanded
Reverse/Clockwise, the test light should illuminate dimly for 10 seconds and turn OFF.
瀚慖f the test light stays ON after the 10 seconds, test the motor control B circuit for a short to voltage. If all circuits and connections test
normal, reprogram the TCCM. If the DTC continues to set replace the TCCM.
瀚慖f the test light does not illuminate at all, test the motor control B circuit for an open or short to ground. If all circuits and connections test
normal, reprogram the TCCM. If the DTC continues to set replace the TCCM.
15. Test the TCEM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control Module References (See: Testing and Inspection/Programming and Relearning) for TCSCM replacement, setup, and programming
* Transfer Case High/Low Clutch Reset (See: Transmission and Drivetrain/Transfer Case/Testing and Inspection/Symptom Related
Diagnostic Procedures/MP 3010-NP0/Transfer Case High/Low Clutch Reset)
* Transfer Case Two/Four Wheel Drive Actuator Replacement (See: Powertrain Management/Transmission Control Systems/Actuators and
Solenoids - Transmission and Drivetrain/Actuators and Solenoids - Transfer Case/Transfer Case Actuator/Service and Repair/MP 3010-NP0
- Transfer Case/Transfer Case Two/Four Wheel Drive Actuator Replacement)
* Transfer Case Disassemble (See: Transmission and Drivetrain/Transfer Case/Service and Repair/Overhaul/MP 3010-NP0 - Transfer
Case/Transfer Case Disassemble)
* Transfer Case Assemble (See: Transmission and Drivetrain/Transfer Case/Service and Repair/Overhaul/MP 3010-NP0 - Transfer
Case/Transfer Case Assemble)
* Oil Pump Cleaning and Inspection (See: Transmission and Drivetrain/Transfer Case/Service and Repair/Overhaul/MP 3010-NP0 - Transfer
Case/Oil Pump Cleaning and Inspection)
* Rear Output Shaft Cleaning and Inspection (See: Transmission and Drivetrain/Transfer Case/Service and Repair/Overhaul/MP 3010-NP0 -
Transfer Case/Rear Output Shaft Cleaning and Inspection)
* Front Output Shaft and Input Shaft Cleaning and Inspection (See: Transmission and Drivetrain/Transfer Case/Service and
Repair/Overhaul/MP 3010-NP0 - Transfer Case/Front Output Shaft and Input Shaft Cleaning and Inspection)
* Drive Chain, Drive Sprocket, and Driven Sprocket Cleaning and Inspection (See: Transmission and Drivetrain/Transfer Case/Service and
Repair/Overhaul/MP 3010-NP0 - Transfer Case/Drive Chain, Drive Sprocket, and Driven Sprocket Cleaning and Inspection)
* High/Low Shift Components Cleaning and Inspection (See: Transmission and Drivetrain/Transfer Case/Service and Repair/Overhaul/MP
3010-NP0 - Transfer Case/High/Low Shift Components Cleaning and Inspection)
* Two/Four Wheel Drive Shift Components Cleaning and Inspection (See: Transmission and Drivetrain/Transfer Case/Service and
Repair/Overhaul/MP 3010-NP0 - Transfer Case/Two/Four Wheel Drive Shift Components Cleaning and Inspection)
* Transfer Case Front Half Cleaning and Inspection (See: Transmission and Drivetrain/Transfer Case/Service and Repair/Overhaul/MP
3010-NP0 - Transfer Case/Transfer Case Front Half Cleaning and Inspection)
* Transfer Case Rear Half Cleaning and Inspection (See: Transmission and Drivetrain/Transfer Case/Service and Repair/Overhaul/MP
3010-NP0 - Transfer Case/Transfer Case Rear Half Cleaning and Inspection)
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