Checking for open-circuits and short-circuits

Check the cable between the upper electronic module (UEM) terminal #21 and the sun roof module (SRM) terminal #4. Check for a short-circuit to ground. Check for an open-circuit. Check for a short-circuit to supply voltage.

Remedy as necessary.

Other information 

• For further information about signals and other values, see Signal specification
• To connect the breakout box, see Connecting the breakout box
• To access the sun roof control module, see Control module, sun roof, replacing
• See Checking wiring and terminals .

Fig 1: Identifying Sunroof Module Connector A Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Connector F Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to Verification 

• NO 

  FAULT NOT FOUND:  Troubleshooting has been completed.