P0A1B

DTC P0A1B or P0A1C

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructionsprovides an overview of each diagnostic category.

DTC Descriptor
DTC P0A1B
- Drive Motor 1 Control Module Performance

DTC P0A1C
- Drive Motor 2 Control Module Performance

Circuit/System Description

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

Conditions for Running the DTC

* The vehicle is ON.
* The system voltage is greater than 9.5 V.

Conditions for Setting the DTC

The control module has detected an internal malfunction.

Action Taken When the DTC Sets

* DTCs P0A1B and P0A1C are Type A DTCs.
* The power inverter module requests the hybrid powertrain control module 2 to open the high voltage contactor relays.

Conditions for Clearing the DTC

DTCs P0A1B and P0A1C are Type A DTCs.

Reference Information
DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Verification

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 Verification Tests after completing the diagnostic procedure.

Control Module References Control Module Referencesfor Drive Motor Generator Power Inverter Module, also called the power inverter module, replacement, programming, and setup.