DTC P1E4A or P1E4B
Diagnostic Instructions
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 once 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
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.
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