Checking the wires

Fig 1: Identifying Ignition Off Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Remove connector from central electronic module (CEM).

  Check the wire between fuse 11C/7 2 (5A) and central electronic module (CEM) connector 10C and 1C for a short circuit to ground as described in Short-circuit to ground, permanent faults .

  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.

Are wires OK? 

• YES 

  Refer to Checking the wires 

• NO 

  OKAY:  Troubleshooting has been completed.

Check the wire between fuse 11C/7 2 (5A) and central electronic module (CEM) connector 10C and 1C for an intermittent short circuit to ground as described in Short-circuit to ground, permanent faults .

Replace fuse.

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 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Continue 

  OKAY:  Troubleshooting has been completed.

Check the wire between fuse 11C/7 2 (5A) and central electronic module (CEM) connector 10C and 1C for contact resistance and oxidation as described in Contact resistance and oxidation and for an intermittent open circuit as described in Open-circuit, intermittent faults .

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 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Continue 

  OKAY:  Troubleshooting has been completed.