MTU 8V4000Lx4 Operating Instructions Manual page 147

891 – AL Purging active
Yellow alarm.
Associated parameter 2.1090.048
Cause
Engine was stopped with
emergency stop or did not finish
starting successfully on several
occasions.
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.
Corrective action
u None
Corrective action
u Precise error name is transmitted to the genset controller via
CAN bus.
Corrective action
u Precise error name is transmitted to the genset controller 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.
MS15026/00E 2015-05 | Troubleshooting | 147