Checking connectors

Check control unit and wire connector (54/3R, 54/10 or 54/11 and 3/126 or 3/127) for Contact resistance and oxidation , and for a loose contact as described in Loose connections (terminals) .

Check especially for damage.

Additional information: 

• To access the door control unit, see Driver's door module/passenger door module (DDM/PDM), replacing .

Fig 2: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to Checking wires and components