2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 924
TCCM X2.
锟斤拷If the resistance is less than the specified range, test the affected circuits for a shorted together condition. If all circuits and connections
test normal, test the TCCM for proper operation.
10. Using the GY probe J 35616-2A, test for greater than 10 ohm between the rotational position sensor circuit, TCSCS X2 pin 11 and all other
pins of the TCCM X2.
锟斤拷If the resistance is less than the specified range, test the affected circuits for a shorted together condition. If all circuits and connections
test normal, test the TCCM for proper operation.
11. Test the RPS for proper operation.
Component Testing
RPS
1. Key OFF. Disconnect the X1 connector at the RPS.
2. Remove the RPS from the transfer case.
3. Connect the RPS.
4. While monitoring the Rotational Position Sensor parameter in the Data Display section of the scan tool, rotate the center locating tab of the
RPS. The Rotational Position Sensor parameter reading should sweep between -146 and +204 degrees.
锟斤拷If the RPS does not function as explained, replace the RPS.
TCCM
1. Key OFF. Disconnect the X1 connector.
2. Key ON, engine OFF. Connect the EL-49742 - harness.
3. Test for 4.5-5.5 V between the TCCM 5-volt reference pin, TCCM X1 pin 4, and the ground terminal of the EL-49742 - harness, black
terminal.
锟斤拷If the outside the specified range, replace TCCM.
4. Key OFF.
5. Connect the TCCM X1 connector. Disconnect the TCCM X2 connector.
6. Key ON, engine OFF.
7. Test for B+ (+0.0/-1.0 V) between the TCCM low reference circuit, TCCM X2 pin 9, and the B+ terminal of the EL-49742 - harness, red
terminal.
锟斤拷If the outside the specified range, replace TCCM.
8. Test for B+ (+0.0/-1.0 V) between the TCCM rotational position sensor circuit, TCCM X2 pin 11, and the B+ terminal of the EL-49742 -
harness, red terminal.
锟斤拷If the outside the specified range, replace TCCM.
9. Go to Circuit/System Testing
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 3023/3024-NQH - Transfer Case/Transfer Case High/Low Clutch Reset)
* Transfer Case Two/Four Wheel Drive Actuator Position Sensor 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 Position Sensor Replacement)
MP 3010-NP0 - Transfer Case
DTC C0396
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
