Check connectors

Check connector 54/3R and central electronic module (CEM) connector for contact resistance and oxidation as described in Contact resistance and oxidation , and for a loose contact as described in Loose connections (terminals) .

Check especially for any damage.

HINT: If cause of fault is found, then install components, connect connector etc.

HINT: If cause of fault is not found do not install central electronic module (CEM) until you have completed the trouble-shooting.

Additional information:

To access central electronic module (CEM) connector, see Central electronic module (CEM), replacing .
To connect the test box to the control unit, see Connecting the breakout box
For further information about signals and other values:
- -2004: Signal specification
- 2005-: Signal specification

Fig 1: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Is there a fault?