MTU 12 V 4000 Lx4 Operating Instructions Manual page 112

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 stop.
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 stop.
Associated parameter 2.3013.912
Cause
Speed of 1st secondary
turbocharger too high (limit
value 2).
051 – HI T-Lube Oil
Yellow alarm.
Associated parameter 2.0125.931
Cause
Engine oil temperature after oil
heat exchanger too high (limit
value 1). Oil heat exchanger
contaminated, coolant
temperature is too high.
Insufficient oil volume flow rate.
112 | Troubleshooting | MS15027/00E 2013-10
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.
Corrective action
1. Check engine coolant circuit.
2. Check oil heat exchanger.
3. Check oil level (→ Page 173).