Diagnostic Test
- CHECK IF THE DTC RESETS
- Turn the ignition on.
- With the scan tool, erase Electric Vehicle Control Unit EVCU DTCs.
- Turn the ignition off. Remove the key from the Ignition Switch, close doors and allow the EVCU to shut down.NOTE:
Allow up to two minutes for the EVCU to shut down. Opening the vehicle door will interrupt the shut down process.
- Turn the ignition on.
- With the scan tool, read EVCU DTCs.
Does this DTC reset?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .
- CHECK THE (H32) MASTER EV WAKE-UP CIRCUIT FOR A SHORT TO GROUND
- Turn the ignition off. Remove the key from the Ignition Switch, close doors and allow the EVCU to shut down.
- Disconnect the EVCU C2 harness connector
- Measure the resistance between ground and the (H32) Master EV Wake-up circuit in the EVCU C2 harness connector.
Is the resistance below 5.0 Ohms?
Yes
- Repair the (H32) Master EV Wake-up circuit for a short to ground.
- Perform the EVCU VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Go To 3
- ELECTRIC VEHICLE CONTROL UNIT (EVCU)
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the PIM, BPCM, OBCM and the Electric Vehicle Control Unit (EVCU).
- Look for any chafed, pierced, pinched or partially broken wires.
- Look for broken, bent, pushed out or corroded terminals.
- Perform any Technical Service Bulletins that may apply.
Were there any problems found?
Yes
- Repair as necessary.
- Perform the EVCU VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Replace and program the Electric Vehicle Control Module (EVCU) in accordance with the Service Information. Refer to UNIT, ELECTRIC VEHICLE CONTROL (EVCU), REMOVAL .
- Perform the EVCU VERIFICATION TEST. Refer to STANDARD PROCEDURE .