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P1AEE CHEVROLET

P1AEE CHEVROLET - Drive Motor 1 Control Module Hybrid Battery System Voltage High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Drive Motor Generator Power Inverter Module
  • Drive Motor Generator Power Inverter Module harness is open or shorted
  • Drive Motor Generator Power Inverter Module circuit poor electrical connection

Tech notes

2017 Malibu and Volt models. These models are equipped with the 5ET50 automatic transmission (RPOs MKV, MKE), which is an electronically-controlled, continuously-variable electric transmission (or drive unit) on hybrid models.
The following DTCs may be set:
- P1AEE – Drive Motor 1 Control Module Hybrid/EV Battery System Voltage High Voltage
- P1AEF– Drive Motor 2 Control Module Hybrid/EV Battery System Voltage High Voltage
- P1AF0 – Drive Motor 1 Control Module Hybrid/EV Battery Voltage System Isolation Lost
- P1AF2 – Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost
- P1E22 – Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery Voltage System Isolation Lost
If only two or three of these DTCs are set, follow the appropriate Service Information diagnostic procedures. The cause may not be any internal components of the transmission.
If all five DTCs are set, there is an internal fault with the transmission and the transmission requires replacement. Do not attempt any internal repairs.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1aee Chevrolet Description

The Drive Motor Generator Power Inverter Control Module contains two motor control modules. Each motor control modules measures hybrid battery high voltage with several internal sensors. The battery energy control module also monitors high voltage with several internal sensors. The battery energy control module high voltage measurement is broadcast over serial data.
OBDII Code P1aee Chevrolet - Drive Motor 1 Control Module Hybrid Battery System Voltage High - AutoCodes.com

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