Service Information

Volt

DTC P150D or P150E

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC P150D: Supply Voltage Circuit 2 Low Voltage

DTC P150E: Supply Voltage Circuit 1 Low Voltage

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Two of the motor control modules operate their respective drive motor generator based upon drive motor generator power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump motor. The hybrid powertrain control module and the motor control modules share the drive motor generator power inverter module ignition voltage circuit, battery voltage circuits and chassis earth.

Conditions for Running the DTC

The vehicle is ON

Conditions for Setting the DTC

•	DTC P150D: battery voltage on circuit 2 is less than 8.0 V for more than 2.5 seconds.

•	DTC P150E: battery voltage on circuit 1 is less than 8.0 V for more than 2.5 seconds.

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Verification

Verify that DTC P0562 or P0563 is 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 .

DTC P150D

Vehicle OFF, disconnect the X1 harness connector at the T6 power inverter module.
Vehicle ON, verify it is greater than 12.0 V at terminal 24.

⇒	If less than the specified range, test the circuit for a short to ground or an open/high resistance.

If the circuit tests normal, program the T6 power inverter module. If the DTC resets, replace the T6 power inverter module.

DTC P150E

Vehicle OFF, disconnect the X2 harness connector at the T6 power inverter module.
Vehicle ON, verify it is greater than 12.0 V at terminal 35.

⇒	If less than the specified range, test the circuit for a short to ground or an open/high resistance.

If the circuit tests normal, 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.