Group 30: Electrical system Diagnostic Trouble Codes
129
MID 128, SID 232
5V sensor supply 1
MID 128: Engine control unit
FMI 3: The voltage exceeds the normal value or is
short circuited to higher voltage.
FMI 4: The voltage is less than the normal value or
is short circuited to lower voltage.
FMI Fault code explanation
3, 4 Faulty sensor / Faulty sensor circuit
Fault indication
DCU: Engine warning in DCU display.
CIU: None
Flash code
Electrical fault: 9.3
Value fault: None
Symptom
None
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