Thursday, December 12, 2019

2010 Cadillac Truck Escalade AWD V8-6.2L Page 1555

harness tests OK, replace the applicable drive motor generator.

6. Disconnect DT-48493 from the transmission X176 24-way connector.

7. Connect DT-48493 to the transmission X176 24-way connector at the vehicle harness.

8. Disconnect PIM connector X1.

9. Using the PIM to Transmission Terminal Reference table listed below, test the vehicle harness continuity between PIM X1 and transmission

X176. Also test these circuits for short to ground and to the shield circuit if the shield circuit is not presently grounded to the PIM assembly.

锟斤拷If any of the circuits are not within the specified range, repair or replace the wiring harness.

锟斤拷If all circuits test normal, inspect transmission connector X176 for proper terminal contact. If transmission connector X176 tests OK,

inspect the harness for an intermittent concern.

Intermittent Condition Testing

1. If possible, determine which of the position sensor circuits have the intermittent condition by reviewing the Diagnostic Fault Information

table. For example, DTCs P0C57 and P0C52 only set for a short to ground condition on either the S1 or S3 circuit.

2. Using the Position Sensor Specification table listed below, monitor the position sensor circuits at PIM X1 connector while manipulating the

applicable harness and connectors.

锟斤拷If any of the circuits are not within specification, repair the harness or terminal as required. If a harness repair is indicated and external

harness damage is not evident, the most likely location for internal wire damage is near the harness clamping locations.

3. Disconnect transmission X176 connector and inspect for the following:

* Proper terminal contact

* Proper terminal retention in the connector

* Foreign material or moisture

锟斤拷Repair, replace or clean the connector as appropriate.

4. Reconnect all connectors and test drive the vehicle.

锟斤拷If the DTC sets, replace the applicable drive motor generator and retest for DTCs. If the DTC sets, replace the PIM.

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 PIM replacement, setup and programming

* Drive Motor with Generator Assembly Removal - 2nd Position (See: Transmission and Drivetrain/Automatic

Transmission/Transaxle/Service and Repair/Overhaul/2ML70 - Automatic Transmission/13. Drive Motor with Generator Assembly Removal

- 2nd Position)

* Transmission Control Wiring Harness Extension Harness Removal (See: Transmission and Drivetrain/Automatic

Transmission/Transaxle/Service and Repair/Overhaul/2ML70 - Automatic Transmission/5. Transmission Control Wiring Harness Extension