MTU 12 V 4000 L62FB Operating Instructions Manual page 94

030 – SS Engine Overspeed
Red alarm. Engine shutdown.
Associated parameter 2.2510.932
Cause
Overspeed detected by ECU. This
usually fault message usually
follows other fault messages.
Check of governor, throttle
closing position
031 – HI ETC1 Overspeed
Yellow alarm.
Associated parameter 2.3011.931
Cause
Speed of primary turbocharger
too high (limit value 1).
032 – SS ETC1 Overspeed
Red alarm. Engine shutdown.
Associated parameter 2.3012.932
Cause
Speed of primary turbocharger
too high (limit value 2).
036 – HI ETC2 Overspeed
Yellow alarm.
Associated parameter 2.3013.931
Cause
Speed of 1st secondary
turbocharger too high (limit value
1).
037 – SS ETC2 Overspeed
Red alarm. Engine shutdown.
Associated parameter 2.3013.912
Cause
Speed of 1st secondary
turbocharger too high (limit value
2).
94 | Troubleshooting | MS150098/02E 2016-11
Corrective action
1. Check governor.
2. Check throttle closing position.
Corrective action
u Turbocharger speed sensor is not fitted at present. Check ECU
setting for this input.
Corrective action
u Turbocharger speed sensor is not fitted at present. Check ECU
setting for this input.
Corrective action
u Turbocharger speed sensor is not fitted at present. Check ECU
setting for this input.
Corrective action
u Turbocharger speed sensor is not fitted at present. Check ECU
setting for this input.