Volvo TSI, Manual

Page: 159 / 250

Group 28 Troubleshooting
FMI 4
Short circuit to ground, injector low or high side.
Conditions for fault code:
•
Injector activated.
•
Short circuit to ground on each respective injector’s
low side (EA11, EA22, EA23, EA34, EA35, EA36) or
high side (EA12, EA24).
Possible cause:
•
Short circuit to ground in the wiring for each respec-
tive injector’s low or high side.
Reaction from the EECU:
•
Fault code is set.
•
Yellow lamp is requested.
•
The particular injector bank is switched off.
Noticeable external symptom:
•
Yellow lamp lights up.
•
Low power output.
•
Uneven operation.
•
Abnormal noise.
•
3 cylinder operation.
FMI 5
Open circuit in the injector circuit.
Conditions for fault code:
•
Injector activated.
•
Open circuit in the injector circuit.
Possible cause:
•
Open circuit in the wiring on low or high side. If 3
fault codes have been set (a bank) the open circuit
is on that bank’s high side, if there is only one fault
code the open circuit is on the particular injector’s
low side.
Reaction from the EECU:
•
Fault code is set.
•
Yellow lamp is requested.
•
One or three injectors are switched off.
Noticeable external symptom:
•
Yellow lamp lights up.
•
Low power output.
•
Uneven operation.
•
Abnormal noise.
•
3 or 5 cylinder operation.
FMI 7
The mechanical system does not respond in the correct
way
Conditions for fault code:
•
Injector activated.
•
Cylinder balancing data too high.
Possible cause:
•
Fault in injector.
•
Poor compression.
Reaction from the EECU:
•
Fault code is set.
•
Yellow lamp is requested.
•
The particular injector is switched off.
Noticeable external symptom:
•
Yellow lamp lights up.
•
Low power output.
•
Uneven operation.
•
Abnormal noise.
•
5 cylinder operation.
FMI 11
Unidentifiable error.
Conditions for fault code:
•
Injector activated.
Possible cause:
•
Intermittent faults.
Reaction from the EECU:
•
Fault code is set.
•
Yellow lamp is requested.
•
The particular injector or the whole injector bank is
switched off.
Noticeable external symptom:
•
Yellow lamp lights up.
•
Low power output.
•
Uneven operation.
•
Abnormal noise.
•
3 or 5 cylinder operation.
157