
FMI 5 – Current below normal or open circuit
Fault code explanation: Faulty sensor / Faulty sensor circuit
Fault indication: DCU: Engine warning in DCU display.
CIU: Flash code
Flash code
Electrical fault: 8.5
Value fault: None.
Symptom: IEGR can not be turned on. If the IEGR function would fail (not being acti-
vated) the
result will be an increased exhaust production with high NOX and
possible over speeding of the turbocharger.
Possible reason: Open circuit in one or both of the cables to the IEGR.
Suitable action: 1 Check cable harness between EMS2 and the IEGR.
2 Check the contact pressure in socket 30, 57 and 60 in the engine con-
nector B.
3 Check the IEGR coil.
FMI 7 – Mechanical system not responding properly
Fault code explanation: Mechanical fault.
Fault indication: DCU: Engine warning in DCU display.
CIU: Flash code
Flash code
Electrical fault: 8.5
Value fault: None.
Symptom: IEGR can not be turned on. If the IEGR function would fail (not being acti-
vated)
the
result will be an increased exhaust production with high NOX and
possible over speeding of the turbocharger.
Possible reason: • IEGR solenoid mechanically stucked.
• Too low oil pressure to activate the IEGR.
Suitable action: 1 Check the function of the IEGR solenoid.
2 Check the engine oil pressure.
30-2 Fault Tracing
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