2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2524

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2524

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

1. Ignition OFF, open the hood to disable the Auto-Stop function. Refer to Hybrid Modes of Operation Description ( See: Hybrid Drive

Systems/Description and Operation/Hybrid Modes of Operation).

2. Ignition ON, verify the scan tool hood position parameter displays Open.

瀚慖f the hood position does not display Open, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code

Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle) for DTC P254F.

Circuit/System Testing

Note: An intermittent or momentary, less than 1 s, loss of system voltage during throttle tip-in may set DTC P060D.

1. Ignition ON, clear the DTC information with a scan tool. Observe the scan tool DTC information. Verify that DTCs P0602 or P2610 do not

fail this ignition cycle.

瀚慖f DTC P0602 failed this ignition, reprogram the ECM. Refer to Control Module References (See: Testing and Inspection/Programming

and Relearning). If DTC P0602 resets, replace the ECM.

瀚慖f DTC P2610 failed this ignition, test the ECM ignition, battery positive voltage, and ground circuits for an open/high resistance or a

short to ground. If the circuits test normal, replace the ECM.

2. Ignition ON, observe the DTC information with a scan tool. Verify DTCs P0601, P0603, P0604, P0606, P0607, P060D, P062F, or P16F3 do

not set this ignition cycle.

瀚慖f any of the DTCs set this ignition cycle, replace the ECM.

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 ECM replacement, programming and setup

Hybrid Controls

DTC P0601-P0604, P0606, or P062F

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 Descriptor

DTC P0601

- Control Module Read Only Memory (ROM)