Checking For An Open-Circuit

Check the cable between the control module terminal #19 and roof lamp module terminal #5A. Check for an open-circuit. Check for a short-circuit to supply voltage.

Replace the cable if a fault is found.

If no fault was found, try replacing the lamps.

Other information: 

• For further information about signals and other values, see SIGNAL DESCRIPTION, UPPER ELECTRONIC MODULE (UEM)
• To connect the breakout box, see CONNECTING THE BREAKOUT BOX
• To replace the lamps, see INTERIOR LIGHTING, REPLACING
• see CHECKING WIRING AND TERMINALS .

Fig 1: Identifying Connector Terminals

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Ohms Display

Courtesy of VOLVO CARS CORPORATION

• Continue 

  Refer to VERIFICATION