2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 924

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 924

TCCM X2.

瀚慖f 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.

瀚慖f 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.

瀚慖f 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.

瀚慖f 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.

瀚慖f 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.

瀚慖f 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.