Service Information

Volt

DTC P1EB8

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 Descriptor

DTC P1EB8: Auxiliary Transmission Fluid Pump Control Module Long Term Memory Reset

This is an internal fault detection of the motor control module. The motor 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 and motor control modules and no external circuits are involved.

Conditions for Running the DTC

This diagnostic runs once at vehicle ON.

Conditions for Setting the DTC

The control module has detected an internal malfunction.

Action Taken When the DTC Sets

DTC P1EB8 is a Type A DTC.

Conditions for Clearing the DTC

DTC P1EB8 is a Type A DTC.

Reference Information

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Verification

Verify that DTC P0562 or P0563 are not set.

⇒	If DTC P0562 or P0563 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.