2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2026

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2026

* DTCs P0324, P0325, P0326, P0327, P0328, P0330, P0332, and P0333 are Type B codes.

* The ignition timing is retarded to reduce the potential of engine damaging spark knock.

Conditions for Clearing the DTC

DTCs P0324, P0325, P0326, P0327, P0328, P0330, P0332, and P0333 are Type B codes.

Diagnostic Aids

* Inspect the KS for physical damage. A KS that is dropped or damaged may cause a DTC to set.

* Inspect the KS for proper installation. A KS that is loose or over torqued may cause a DTC to set.

* The KS mounting surface should be free of burrs, casting flash, and foreign material.

* The KS must be clear of hoses, brackets, and engine electrical wiring.

Reference Information

Schematic Reference

Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

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

Description and Operation

Electronic Ignition System Description (See: Powertrain Management/Computers and Control Systems/Description and Operation/Electronic

Ignition System Description)

Electrical Information Reference

* 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)

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

Testing/Circuit Testing)

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

Repairs/Wiring Repairs)

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

Procedures/Connector Repairs/Connector 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

Special Tools

J 35616 GM Approved Terminal Test Kit

Circuit/System Verification

1. Engine at operating temperature, observe DTC information with a scan tool. DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or

P0333 should not set.

2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

P0324

Note: If DTC P0325, P0326, P0327, P0328, P0330, P0332, or P0333 are also set, diagnose those DTCs first.

DTC P0324 indicates an internal control module circuitry failure. Replace the ECM.

P0325, P0326, P0327, P0328, P0330, P0332, P0333

1. Ignition OFF, disconnect the affected KS.

2. Ignition OFF. Connect a DMM to both KS signal circuits, terminals A and B, at the affected KS. Set the DMM to the 400 mV AC scale,

select the Hz mode. Let the reading stabilize at 0 Hz.

Note: DO NOT tap on plastic engine components.