Checking The Power Supply And Ground Terminal

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.

  Check that the fuse for the rain sensor in the central electronic module (CEM) is intact. If the fuse is blown, check the subsequent circuit for a short-circuit to ground. Then replace the fuse.

  Check the power supply cable between rain sensor module (RSM) terminal #A1 and central electronic module (CEM) terminal #H7. Check for an open-circuit.

  Check the ground lead between rain sensor module (RSM) terminal #A2 and central electronic module (CEM) terminal #D10. Check for an open-circuit.

  Check the signal cable between central electronic module (CEM) terminals #H23 (#37) and rain sensor module (RSM) terminal #A3. Check for an open-circuit. Check for a short-circuit to supply voltage.

  Remedy the cables as necessary.

  Switch on the ignition. Check that the relay for extended X-supply is activated.

  Click the VCT2000 symbol to read the relay status.

  Other information 

  • see CONNECTING THE BREAKOUT BOX (2004-07)
  • see SIGNAL DESCRIPTION CENTRAL ELECTRONIC MODULE (CEM) (2004-07)
  • To access the central electronic module (CEM), see CONTROL MODULE RELAY BOX PASSENGER COMPARTMENT
  • see CONTENTS
  Fig 2: Identifying Damper Motor Module (DMM) Connector Terminals

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying Rain Sensor Module (RSM)

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to VERIFICATION 

• NO 

  Refer to CHECKING COMMUNICATION