Checking the power supply wiring

Check the wiring between the central electronic module (CEM) #2E (#B22), to the relevant courtesy lighting #2. Check for an open-circuit. Check for a short-circuit to ground.

Remedy as necessary.

Other information: 

• To connect the breakout box, see Connecting the breakout box
• For information about signals, see Signal specification
• To access or replace the front courtesy lighting, see Courtesy lighting, front, replacing .

Fig 1: Identifying 10-Bit Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Does the courtesy lighting function? 

• YES 

  Refer to Verification 

• NO 

  Refer to Light switch replacement