Checking Wire And Relay

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.

  Check the wire between central electronic module (CEM) 6C and relay 2/64 1 and connector 8 and 2 for a short circuit to voltage supply as described in Open-circuit, permanent faults .

  Check that relay 2/64 is installed correctly.

  Do the necessary corrective action.

  Additional information: 

  • For information on the central electronic module (CEM) connector, see Central electronic module (CEM), replacing .
  • To connect the test box, see Connecting the breakout box .
  • For information on signals, see Signal specification .
  Fig 2: Identifying Breakout Box

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Ohmmeter

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is there a fault? 

• YES 

  Refer to Verification 

• NO 

  Refer to Replacing Relay