LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2007 >> S60 Base, AWD >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 1 Of 13 >> CEM-1A04: X-Power Supply. Signal Too Low. Intermittent Fault (2001-2004) >> Signal too low. Intermittent fault >> Checking the connectors
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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: 

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

Was a fault detected?