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Home >> Volvo >> 2007 >> S60 Base, AWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 1 Of 13 >> CEM-1A05: 30 Power Supply. Signal Too Low. Intermittent Fault (2001-2004) >> Signal too low. Intermittent fault >> Checks >> Checking wire between battery and alternator.

Checking wire between battery and alternator.

Check the wire between alternator 1A and starter motor 1 (red/green wire and flat pin) for an open circuit as described in Open-circuit, intermittent faults , and for a short circuit to ground as described in Short-circuit to ground, intermittent faults .

Also check the wire between starter motor 1 and battery positive terminal in the same way.

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

Is there a fault?