2010 Cadillac CTS Sedan AWD V6-3.6L Page 882

2010 Cadillac CTS Sedan AWD V6-3.6L Page 882

* DTCs P0601, P0602, P0603, P0604, P0606, P062B, P062F, P0630 and P16F3 are Type A DTCs.

* DTC P2610 is a Type B DTC.

* DTCs P0607 and P0610 are Type C DTCs.

Conditions for Clearing the DTC

* DTCs P0601, P0602, P0603, P0604, P0606, P062B, P062F, P0630 and P16F3 are Type A DTCs.

* DTC P2610 is a Type B DTC.

* DTCs P0607 and P0610 are Type C DTCs.

Diagnostic Aids

Verify that the battery cables are clean and tight, and the battery is fully charged. Refer to Battery Inspection/Test (See: Starting and

Charging/Testing and Inspection/Component Tests and General Diagnostics/Battery Inspection/Test).

Reference Information

Schematic Reference

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

(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

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

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)

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

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

Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/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. Observe the DTC information with a scan tool. DTC P0601, P0602, P0603, P0604, P0606, P0607, P0610, P062B, P062F, P0630, P16F3, or

P2610 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

1. Test the voltage and ground inputs to the K20 ECM for the following:

* A short

* An open

* High resistance

2. Ignition ON, observe the DTC information with a scan tool.

瀚慖f DTC P0602, P0610, or P0630 failed this ignition, program the K20 ECM. If the DTC resets, replace the K20 ECM.

3. Observe the DTC information with a scan tool. DTC P0601, P0603, P0604, P0606, P0607, P062B, P062F, P16F3, or P2610 should not set.

瀚慖f a DTC failed this ignition, replace the K20 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 engine control module replacement, setup, and