Checking the connectors

Check the connectors on the upper electronic module and rear reading lamp unit for contact resistance and oxidation as described in Contact resistance and oxidation , and for a loose contact as described in Loose connections (terminals) .

Additional information: 

• For information on signals and additional values, see Signal specification .
• To connect the test box, see Connecting the breakout box .

Fig 1: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Is there a fault? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking for open circuits and short circuits