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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-1A05: 30 Power Supply. Signal Too Low. Intermittent Fault (2003-2004) >> Signal Too Low. Intermittent Fault >> 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, see 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 Ohm Meter
GLL101042Courtesy of VOLVO CARS CORPORATION

Is there a fault?