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Home >> Volvo >> 2007 >> S60 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) - Diagnostic Trouble Codes And Associated Procedures - 10 Of 14 >> ECM-8400: 5 Volt Power Supply. Signal Too Low. Permanent Fault (B5244S; 2001) >> Signal too low >> Checking >> Checking cables

Checking cables

NOTE:

The 5 volt supply for the various components is common internally in the control module. Therefore the control module cannot identify which of the outputs are short-circuited to ground. Consequently all the affected outputs must be checked for a short-circuit to ground.

Check cables between 

For a short-circuit to ground according to Short-circuit to ground, permanent faults .

Remedy as necessary.

Other information 

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