Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK THE CHARGE PORT PILOT CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT
1. Turn the ignition off.
2. Disconnect the OBCM Charge Port harness connector.
3. Measure the resistance between the Charge Port Pilot circuit and all other circuits at the OBCM Charge Port harness connector.
  Is the resistance above 10k Ohms between the Charge Port Pilot circuit and all other circuits?
  
  Yes
  - Go To 2
  No
  - Replace the Charge Port harness in accordance with the service information.
  - Perform the EVCU VERIFICATION TEST. Refer to EVCU VERIFICATION TEST .
CHECK THE CHARGE PORT PILOT CIRCUIT FOR A SHORT TO GROUND
1. Measure the resistance between ground and the Charge Port Pilot circuit at the OBCM Charge Port harness connector.
  Is the resistance above 10k Ohms?
  
  Yes
  - Go To 3
  No
  - Replace the Charge Port harness in accordance with the service information.
  - Perform the EVCU VERIFICATION TEST. Refer to EVCU VERIFICATION TEST .
CHECK THE CHARGE PORT PILOT CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Measure the resistance of the Charge Port Pilot circuit between the OBCM Charge Port harness connector and the Charge Port Inlet connector located in the Fuel Door Opening.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Replace the Charge Port harness in accordance with the service information.
  - Perform the EVCU VERIFICATION TEST. Refer to EVCU VERIFICATION TEST .
CHECK EVSE CHARGING CAPABILITY
1. Reconnect the OBCM Charge Port harness connector.
2. Connect the customers EVSE charging unit to the vehicle. Using the Scan Tool, monitor the AC output and Check Pilot signal values (voltage, DC).
  Is the EVSE charging unit operating correctly?
  
  Yes
  - Advise the customer that the problem may be with their power source connection for the EVSE charging unit.
  - Perform the EVCU VERIFICATION TEST. Refer to EVCU VERIFICATION TEST .
  No
  - Go To 5
CHECK EVSE CHARGING UNIT
1. Refer to the EVSE User manual information and follow the troubleshooting guide to determine if the problem is with the EVSE charging unit or the vehicle.
2. Using the Scan Tool, Monitor the AC output.
  Is the EVSE charging unit operating correctly?
  
  Yes
  - Go To 6
  No
  - Replace the EVSE charging unit in accordance with the service information.
  - Perform the EVCU VERIFICATION TEST. Refer to EVCU VERIFICATION TEST .
ON-BOARD CHARGING MODULE
1. Using the wiring diagram/schematic as a guide, inspect the connectors at the Charge Port connector and the On-Board Charging Module (OBCM).
2. Look for broken, bent, pushed out or corroded terminals.
3. Perform any Technical Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the EVCU VERIFICATION TEST. Refer to EVCU VERIFICATION TEST .
  No
  - Replace the On-Board Charging Module in accordance with the service information. Refer to MODULE, ON-BOARD CHARGING (OBCM), REMOVAL .
  - Perform the EVCU VERIFICATION TEST. Refer to EVCU VERIFICATION TEST .