P1E4A

DTC P1E4A or P1E4B

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 Instructions provides an overview of each diagnostic category.

DTC Descriptor
DTC P1E4A
- Control Module Redundant Drive Motor 1 Speed Sensing Circuit

DTC P1E4B
- Control Module Redundant Drive Motor 2 Speed Sensing Circuit

Circuit/System Description

The drive motor generator position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed and direction of the drive motor generator based upon the signals of the resolver-type position sensor. The position sensor allows the motor control module to determine the exact position, speed and direction of the drive motor generator. The hybrid powertrain control module also calculates motor speed. This fault is handled inside the power inverter module, often referred to as the drive motor generator power inverter module, and no external circuits are involved.

Conditions for Running the DTC

This diagnostic runs one time at vehicle ON.

Conditions for Setting the DTC

The calculated motor speed is greater than 400 RPM different from the measured speed.

Action Taken When the DTC Sets

* DTC P1E4A is a Type A DTC.
* DTC P1E4B is a Type A DTC.
* Propulsion will be disabled.

Conditions for Clearing the DTC

* DTC P1E4A is a Type A DTC.
* DTC P1E4B is a Type A DTC.

Reference Information
DTC Type Reference

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

Circuit/System Verification

1. 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 B1325.

2. 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 Programming and Relearning for Drive Motor Generator Power Inverter Module, also called the power inverter module, replacement, programming, and setup.