Checking the lock button ground wire

Check the contact on number plate lighting lamp housing 3 and on lock unit 4 for Contact resistance and oxidation and check the intermediate wire for an open circuit as described in Open-circuit, permanent faults .

Do the necessary corrective action.

Additional information 

• To access number plate lighting lamp housing, see Bulb, license plate lighting, replacing
• To access/replace the lock button, see Boot Lid Handle/Switch .

Fig 1: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.