MTU 12 V 4000 Lx4 Operating Instructions Manual page 144

932 – AL MIC5 Yellow
Yellow alarm.
Associated parameter 1.4520.933
Cause
An internal combined alarm in
the ignition system was
detected.
933 – AL MIC5 Red
Red alarm.
Associated parameter 1.4520.936
Cause
An internal combined alarm in
the ignition system was
detected.
934 – AL MIC5 Comm Lost
Red alarm.
Associated parameter 1.4520.939
Cause
CAN bus communication to
ignition system faulty.
948 – AL ESI activated
Red alarm.
Associated parameter 2.8006.044
Cause
Emergency stop input is
activated.
972 – AL MIC5 Signature difference
Red alarm.
Associated parameter 1.450.969
Cause
The ignition system has not
taken on the configuration from
the engine governor.
144 | Troubleshooting | MS15027/00E 2013-10
Corrective action
u Precise error name is sent to the genset control via CAN bus.
Corrective action
u Precise error name is sent to the genset control via CAN bus.
Corrective action
1. Check cabling.
2. Check power supply.
3. Restart ECU, EMU & knock control.
4. Check settings using device-specific dialog software (in device).
Corrective action
1. Rectify the fault causing the alarm.
2. Check cabling.
Corrective action
1. ECU restart
2. Check configuration in the ECU