Checking The Connectors

Check the central electronic module (CEM) connector. Check for contact resistance and oxidation according to CONTACT RESISTANCE AND OXIDATION . Check for loose connections according to LOOSE CONNECTIONS (TERMINALS) .

Check for any damage.

HINT: If the fault cause is found, reinstall the components, connectors etc. 

HINT: If the fault cause is not found, do not reinstall the central electronic module (CEM) before continuing with fault-tracing. 

Other information: 

• For -2004, see: CENTRAL ELECTRONIC MODULE (CEM), REPLACING .
• For 2005-, see: CENTRAL ELECTRONIC MODULE (CEM), REPLACING .

Fig 1: Identifying Ohm Meter

Courtesy of VOLVO CARS CORPORATION

Was a fault detected? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to CHECKING THE CABLE