Checking the power supply and ground terminals

Check connector 54/3. Check for contact resistance and oxidation. Check for damage carefully.

Check the voltage to ground at control module connector terminal #6E. The voltage must be at least battery voltage minus three volts.

Check the central electronic module (CEM) connector. Check for contact resistance and oxidation. Check for damage carefully.

Check the wiring between control module terminal #1E and ground: left A-post (right A-post for right-hand drive cars) for loose connections.

Other information

To access connector 54/3 see appropriate wiring diagram. (Also see Fig 1)
To access the central electronic module (CEM) connector, see Central electronic module (CEM), replacing
To connect the breakout box, see Connecting the breakout box
See Checking wiring and terminals .

Fig 1: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

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