MTU 12V 4000 L32 F Operating Instructions Manual page 90

1.4520.544 – MIC5 E1 Id of output board failed
Red alarm. Initiated by MIC5.
Cause
The characteristic data of the
output board is illegible or
corrupt.
1.4520.545 – MIC5 E1 Fail hi-voltage pow supply
Red alarm. Initiated by MIC5.
Cause
The high voltage power supply
unit is faulty.
1.4520.546 – MIC5 E1 Failure temperature sensor
Red alarm. Initiated by MIC5.
Cause
The temperature sensor is faulty.
1.4520.547 – MIC5 E1 Failure current sensor
Red alarm. Initiated by MIC5.
Cause
The current sensor is faulty.
1.4520.548 – MIC5 E1 Temperature limit reached
Red alarm. Initiated by MIC5.
Cause
The device temperature has
exceeded the admissible value.
1.4520.549 – MIC5 E1 Power output limit reached
Red alarm. Initiated by MIC5.
Cause
The power output has exceeded
the admissible value.
90 | Troubleshooting | MS150104/02E 2016-11
Corrective action
1. Restart ignition control unit.
2. Replace ignition control unit.
Corrective action
1. Restart ignition control unit.
2. Replace ignition control unit.
Corrective action
1. Restart ignition control unit.
2. Replace ignition control unit.
Corrective action
1. Restart ignition control unit.
2. Replace ignition control unit.
Corrective action
1. Ensure that the genset room is adequately ventilated.
2. Restart ignition control unit.
Corrective action
1. Check ignition system settings in the Engine Control Unit.
2. Check ignition coils.
3. Check igniters.
4. Restart ignition control unit.