Checking the wire

Check the wire between central electronic module (CEM) 17D and ignition lock light (16/65) 5 for an intermittent short circuit to ground as described in Short-circuit to ground, intermittent faults and for a loose contact as described in Loose connections (terminals) .

Check the wire between central electronic module (CEM) 5B and high level brake light (10/19) 5 for an intermittent short circuit to ground as described in Short-circuit to ground, intermittent faults and for a loose contact as described in Loose connections (terminals) .

Also check the connector.

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 Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying 10 CD Changer Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.