Checking the connectors

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.

  Check central electronic module (CEM) connector for contact resistance and oxidation, as described in Contact resistance and oxidation .

  Check especially for any damage.

  HINT: If cause of fault is found, then install components, connect connectors etc. If cause of fault is not found do not install control unit until you have completed the trouble-shooting. 

  Additional information: 

  • To access central electronic module (CEM) connector see Central electronic module (CEM), replacing .
  Fig 2: Identifying Ohm Meter

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is there a fault? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking the component and wire