MTU 16V4000L32FNER Operating Instructions Manual page 90

1.4520.527 – MIC5 Stat Analogue voltage sig fail
Red alarm. Initiated by MIC5.
Cause
Failure of the voltage signal to
adjust the ignition point.
1.4520.528 – MIC5 Stat Aux inp supply volt. fail
Red alarm. Initiated by MIC5.
Cause
Malfunction in the auxiliary supply
voltage for the analog inputs.
1.4520.529 – MIC5 Stat Trigger supply volt. fail
Red alarm. Initiated by MIC5.
Cause
Malfunction in the auxiliary supply
voltage for the pulse sensor.
1.4520.530 – MIC5 Stat Global timing limited
Yellow alarm. Initiated by MIC5.
Cause
The global ignition point is beyond
the valid range.
1.4520.540 – MIC5 E1 General fault
Red alarm. Initiated by MIC5.
Cause
A general fault has occurred.
1.4520.541 – MIC5 E1 Overspeed
Red alarm. Initiated by MIC5.
Cause
The overspeed limit was reached.
90 | Troubleshooting | MS150121/02E 2017-09
Corrective action
u Check settings in ignitions control unit.
Corrective action
1. Check settings.
2. Restart ignition control unit.
3. Replace ignition control unit.
Corrective action
1. Check cabling to sensor B1.2 (→ Page 202).
2. Check sensor B1.2 (→ Page 203).
3. Restart ignition control unit.
4. Replace ignition control unit.
Corrective action
u Check engine governor settings.
Corrective action
1. Check engine governor settings.
2. Check cabling (→ Page 202).
3. Restart ignition control unit.
4. Replace ignition control unit.
Corrective action
1. Check engine governor settings.
2. Check the speed sensors of the ignition system (→ Page 203).
3. Restart ignition control unit.