P1AE9

DTC P1AE8, P1AE9, P1AEA, or P1AEB

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 P1AE8
- Drive Motor 1 Control Module Hybrid/EV Battery Voltage Sense Circuit Low Voltage

DTC P1AE9
- Drive Motor 1 Control Module Hybrid/EV Battery Voltage Sense Circuit High Voltage

DTC P1AEA
- Drive Motor 2 Control Module Hybrid/EV Battery Voltage Sense Circuit Low Voltage

DTC P1AEB
- Drive Motor 2 Control Module Hybrid/EV Battery Voltage Sense Circuit High Voltage

Circuit/System Description

The power inverter module, often referred to as the drive motor generator power inverter module, contains the motor control modules and the hybrid powertrain control module. Each motor control module operates its respective drive motor based upon hybrid powertrain control module commands. Each motor control module controls the speed, direction and output torque of its respective drive motor generator.

Conditions for Running the DTC

* The vehicle is ON.
* The system voltage is 8-18 V.
* The high voltage contactor relays are closed.

Conditions for Setting the DTC

P1AE8 and P1AEA

With the hybrid/EV battery system contactors closed, the drive motor control module detects high voltage sensor voltage less than 30V.

P1AE9 and P1AEB

The drive motor control module detects high voltage sensor voltage greater than 500V.

Action Taken When the DTC Sets

* DTCs P1AE8, P1AE9, P1AEA and P1AEB 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 P1AE8, P1AE9, P1AEA and P1AEB 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 References for Drive Motor Generator Power Inverter Module, also called the power inverter module, replacement, programming, and setup.