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: Electronic Throttle Module (ETM) Connector Terminal Identification

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS CORPORATION

Does the courtesy lighting function? 

• YES 

  Refer to VERIFICATION 

• NO 

  Refer to LIGHT SWITCH REPLACEMENT