Conditions for Setting the DTCs
The ECM detects an internal failure or incomplete programming for more than 10 s.
Actions Taken When the DTC Sets
* DTCs P0601, P0602, P0603, P0604, P0606, P060D, and P062F are Type A DTCs.
* DTC P0607 is a Type C DTC.
* DTC P2610 is a Type B DTC.
Conditions for Clearing the MIL/DTC
* DTCs P0601, P0602, P0603, P0604, P0606, P060D, and P062F are Type A DTCs.
* DTC P0607 is a Type C DTC.
* DTC P2610 is a Type B DTC.
Diagnostic Aids
Low voltage or a momentary loss of power or ground to the ECM may cause a DTC to set.
* 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).
* Verify the ECM ground circuits do not have an open or high resistance.
* Verify the ECM power circuits do not have an open, short to ground, or high resistance.
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)
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. Observe the DTC information with a scan tool. DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, 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. Observe the DTC information with a scan tool.
锟斤拷If DTC P0602 is set, attempt to program the K20 ECM before replacing the K20 ECM. Refer to Control Module References (See:
Testing and Inspection/Programming and Relearning) for K20 ECM replacement, setup, and programming.
锟斤拷If DTC P0602 resets, replace the K20 ECM.
2. Observe the DTC information with a scan tool. DTC P0601, P0603, P0604, P0605, P0606, P0607, P060D, P062F, or P2610 should not set.
锟斤拷If a DTC failed this ignition, replace the K20 ECM.
