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Home >> Volvo >> 2002 >> S80 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 55 (Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 1 Of 13) >> CEM-1A08: 50-Power Supply. Signal Missing. Intermittent Fault (2001-2004) >> Signal missing. Intermittent fault >> Checking the connectors

Checking the connectors

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2009 Volvo S60, 2008 Volvo S60, 2007 Volvo S60, 2006 Volvo S60, and 2005 Volvo S60. However, it is still accessible from the selected car via links, so may be relevant.

Check connector 54/3 and the connector for the central electronic module (CEM) for contact resistance and oxidation according to Contact resistance and oxidation . Check for loose connections according to Loose connections (terminals) . Remedy if necessary.

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: 

Fig 1: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.

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