2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 928

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 928

command the encoder motor forward and reverse. The parameters should display as shown.

瀚慖f the parameters do not display as described, replace the encoder motor assembly.

TCCM

1. Key OFF. Disconnect the TCCM X1 connector.

2. Key ON, engine OFF. Connect the EL-49742 - harness.

3. Test for 7.5-8.5 V between the incremental encoder sensor (8 V) supply pin, TCCM X1-9, and the ground terminal of the EL-49742 -

harness, black terminal.

瀚慖f the outside the specified range, replace TCCM.

4. Test for 7.5-8.5 V between the incremental encoder sensor (8 V) supply pin, TCCM X1-9, and the low reference pin, TCCM X1-10.

瀚慖f the outside the specified range, replace TCCM.

5. Test for 6.0-7.0 V between the incremental encoder impulse signal pin, TCCM X1-3, and the ground terminal of the EL-49742 - harness,

black terminal.

瀚慖f the outside the specified range, replace TCCM.

6. Key OFF. Connect the TCCM X1 connector. Disconnect the TCCM X2 connector.

7. Key OFF. Test for a diagnostic B+ (+0.0/-1.0 V) between the incremental encoder direction pin, TCCM X2-14, and the B+ terminal of the

EL-49742 - harness, red terminal.

瀚慖f the outside the specified range, replace TCCM.

8. 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 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)

MP 3023/3024-NQH - 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.

DTC Descriptors

DTC C0396 01

- Incremental Sensor Circuit Short to Battery