Checking The Connectors

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS CORPORATION

• Ignition off.

  Check the upper electronic module (UEM), sun roof module (SRM) and wiring connectors (54/3R and 54/13). Check for contact resistance and oxidation. Check for loose connections.

  Check for damage carefully.

  Reinstall the components, reconnect the connectors etc.

  Ignition on.

  Operate the sun roof.

  Other information 

  • To access the upper electronic module (UEM), see UPPER ELECTRONIC MODULE (UEM)/REARVIEW MIRROR, REPLACING
  • To access the sun roof connector, see CONTROL MODULE, SUN ROOF, REPLACING
  • see CHECKING WIRING AND TERMINALS .
  Fig 2: Identifying Ohmmeter

  Courtesy of VOLVO CARS CORPORATION

Do the sun roof controls operate? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to CHECKING COMPONENTS AND WIRING