# 10-05 Battery Charging System inspection

Deactivate the high-voltage circuit as per MP-01-05-00-00-001 High-voltage Circuit Deactivation Procedure (LG batteries) or MP-01-05-00-00-002 High-voltage Circuit Deactivation Procedure (BMW batteries).

Locate the J1772 socket in front of the vehicle and visually inspect it to make sure it is in good condition.

Open the hood and locate the high-voltage (orange) cable that is connected to the socket.

Inspect the cable to make sure that the cable is in good condition and is properly secure.

If the cable is damaged replace it as per RP-01-51-00-00-002 Load Harness Replacement.

Locate the bidirectional Charger/Inverter Unit (BCI20).

Visually inspect the BCI20 to make sure no damage is visible.

If the BCI20 is damaged, replace it as per the RP-01-52-00-00-004 Charger Replacement.

Make sure that all the cables are properly secure on the BCI20.

Make sure that no signs of coolant leakage are apparent. If this is the case, tighten the two connectors.

Inspect the ground strap between the BCI20 and the chassis, making sure it is in good shape.

Make sure the grounding point on the unit is free of dirt and the contact is good.

If the grounding point is dirty or the contact is not good, remove the grounding strap and clean the grounding point.

Apply a conductive grease on the grounding point and reinstall the grounding strap.

Make sure the bolt is torqued to 15 ft-lb (20 Nm).

Inspect the grounding point on the chassis to make sure the contact is good.

If the grounding point is not good, clean the surface on the chassis and apply some conductive grease on the surface.

Reinstall the ground strap on the chassis.