Service Information

Volt

DTC P0601-P0604, P0606, P062F, P1EB6 or P1EB7 - Hybrid Powertrain Control Module

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC P0601: Control Module Read Only Memory Performance

DTC P0602: Control Module Not Programmed

DTC P0603: Control Module Long Term Memory Reset

DTC P0604: Control Module Random Access Memory Performance

DTC P0606: Control Module Processor Performance

DTC P062F: Control Module Long Term Memory Performance

DTC P1EB6: Drive Motor 1 Control Module Long Term Memory Reset

DTC P1EB7: Drive Motor 2 Control Module Long Term Memory Reset

Circuit/System Description

This is an internal fault detection of the hybrid powertrain control module. The hybrid powertrain control module is internal to the power inverter module, often referred to as the drive motor generator power inverter module and is not serviced separately. This fault is handled inside the hybrid powertrain control module and no external circuits are involved.

Conditions for Running the DTC

•	The vehicle is ON.

•	The system voltage is greater than 9.5V.

Conditions for Setting the DTC

The control module has detected an internal malfunction.

Action Taken When the DTC Sets

•	DTCs P0601-P0604, P0606, P061A, P061B, P062F, P1EB6, and P1EB7 are Type A DTCs.

•	The hybrid powertrain control module requests the hybrid powertrain control module 2 to open the high-voltage contactor relays.

Conditions for Clearing the DTC

DTCs P0601-P0604, P0606, P061A, P061B, P062F, P1EB6, and P1EB7 are Type A DTCs.

Reference Information

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Verification

Verify that DTC P0562 is not set.

⇒	If DTC is set, refer to DTC B1325, B1330, B1517, C0800, C0899, C0900, C12E1, C12E2, P0562, P0563, P1A0C, P1A0D, or P1EFC .

If the DTC is set, program the T6 power inverter module. If the DTC resets, replace the T6 power inverter module.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for Drive Motor Generator Power Inverter Module, also called the power inverter module, replacement, programming and set-up.