Mike's Workshop Manuals
: Service manuals for every vehicle
Home
>>
Volvo
>>
1998
>>
S70 Base, Standard
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls - Tests W/Codes
>>
Diagnostic Tests
>>
EFI 533: Ignition Discharge Module Group C - High
>>
Possible Causes
Possible Causes
Short to voltage or ground in ECM terminal B19 circuit.
Defective ECM.