2010 Cadillac Truck SRX FWD V6-3.0L Page 2053

2010 Cadillac Truck SRX FWD V6-3.0L Page 2053

The charge indicator turns ON 15 seconds after the DTC sets.

Conditions for Clearing the DTC

* The DTC will pass when the conditions for setting the DTC are no longer met for 2 seconds.

* A history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.

* The charge indicator turns OFF 15 seconds after the DTC passes.

Reference Information

Schematic Reference

Starting and Charging Schematics (See: Starting and Charging/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Charging System Description and Operation (See: Starting and Charging/Charging System/Description and Operation)

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 Testing

1. Verify that a test lamp illuminates between the G13 generator B+ terminal A X2 and ground.

瀚慖f the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.

2. Ignition OFF, disconnect the X1 harness connector at the G13 generator.

3. Ignition ON, test for less than 1 V between the control circuit terminal 1 and ground.

瀚慖f greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the K20 ECM.

4. Engine running, test for greater than 3 V between the control circuit terminal 1 and ground.

瀚慖f less than the specified range, test the control circuit for a short to ground, or an open/high resistance. If the circuit tests normal, replace

the K20 ECM.

5. If all circuits test normal, test or replace the G13 generator.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Generator Replacement (LF1) (See: Starting and Charging/Charging System/Alternator/Service and Repair)Generator Replacement (LAU)

(See: Starting and Charging/Charging System/Alternator/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for ECM replacement, setup, and programming

P2501

DTC P2500 or P2501

Diagnostic Instructions