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Home >> Volvo >> 2014 >> XC90 3.2, FWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> AEM, CEM, And AUU - Diagnostic Trouble Codes >> CEM-1A08: 50-Power Supply. Signal Missing. Intermittent Fault (2003-2004) >> Signal Missing. Intermittent Fault >> Checking The Connectors

Checking The Connectors

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 Ohm Meter
GLL101042Courtesy of VOLVO CARS CORPORATION

Was a fault detected?