Circuit/System Testing
WARNING: This page is about a different car, the 2012 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle OFF, remove the F103 drive motor generator control module sight shield. Refer to Drive Motor Generator Power Inverter Module Cover Replacement .
- Disconnect the T6 power inverter module X1 connector and the ECM X1 connector.
- Test for less than 1 Ω between the serial data circuits listed below:
- T6 power inverter module X1 connector terminal 10 and K20 ECM X1 connector terminal 43
- T6 power inverter module X1 connector terminal 11 and K20 ECM X1 connector terminal 29
- If greater than the specified range, test the serial data circuit for an open/high resistance condition. If the circuit tests normal, replace the K20 ECM.
- If the DTC is set, program the T6 power inverter module. If the DTC resets, replace the T6 power inverter module.