P1A53

DTC P1A4F, P1A50-P1A54, P1ADC, or P1ADD

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 P1A4F
- Drive Motor 1 Control Module Not Programmed

DTC P1A50
- Drive Motor 1 Control Module Random Access Memory

DTC P1A51
- Drive Motor 1 Control Module Read Only Memory

DTC P1A52
- Drive Motor 2 Control Module Not Programmed

DTC P1A53
- Drive Motor 2 Control Module Random Access Memory

DTC P1A54
- Drive Motor 2 Control Module Read Only Memory

DTC P1ADC
- Drive Motor 1 Control Module Long Term Memory Performance

DTC P1ADD
- Drive Motor 2 Control Module Long Term Memory Performance

Circuit/System Description

The drive motor control modules are internal to 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 drive motor control modules and no external circuits are involved.

Conditions for Running the DTC

* The vehicle is ON.
* Ignition voltage is 8-18 V.

Conditions for Setting the DTC

The control module has detected an internal malfunction or a service module has been installed but not yet programmed.

Action Taken When the DTC Sets

* DTCs P1A4F, P1A50, P1A51, P1A52, P1A53, P1A54, P1ADC and P1ADD 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 P1A4F, P1A50, P1A51, P1A52, P1A53, P1A54, P1ADC and P1ADD 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.