Circuit/System Testing

Ignition/Vehicle - Off
Disconnect the appropriate electrical connector:
- X2 @ X98 Battery Charger Coupler
- X2 @ K16 Battery Energy Control Module
Test for infinite resistance between the test points:
- Control circuit terminal 12 @ Component harness & Ground - With K28/K20
- Control circuit terminal 13 @ Component harness & Ground - With K28/K20
- Control circuit terminal 13 @ Component harness & Ground - With K2W
- Control circuit terminal 14 @ Component harness & Ground - With K2W
- The appropriate Control circuit terminal @ Component harness & The other appropriate Control circuit terminal
- If less than infinite resistance
  Repair the short between the circuits or Repair short to ground on the circuit.
- Go to next step: If infinite resistance
Test for less than 2 ohms between the test points:
- The appropriate control circuit terminal @ Component harness & Terminal X2-17 @ Control module harness
- The appropriate control circuit terminal @ Component harness & Terminal X2-18 @ Control module harness
- If 2 ohms or greater - Repair the open/high resistance in the circuit.
- If less than 2 ohms - Replace the component: K16 Battery Energy Control Module
Connect all previously disconnected components.
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify DTC P0D91 or P0D93 is not set
- If any of the DTCs are set
  Replace the component: X98 Battery Charger Coupler
- Go to next step: If none of the DTCs are set
All OK.