MTU 20 V 4000 G23, Technical Publication

Page: 79 / 178

74 Troubleshooting
Fault
code No. Designation Meaning Task
Related
parameter No.
031 HI ETC 1 overspeed Alarm configuration limit value
1; preliminary warning: speed
of primary turbocharger too
high.
Contact Service. 2.3011.931
032 SS ETC 1 overspeed Alarm configuration limit
value 2; Speed of primary
turbocharger too high.
1. Automatic
power reduction
by engine
control system.
2. Check air filters.
( → Page 123).
2.3012.932
036 HI ETC 2 overspeed Alarm configuration limit value
1; preliminary warning: speed
of secondary turbocharger too
high.
1. Reduce power.
2. Contact
Service.
2.3013.931
037 SS ETC 2 overspeed Alarm configuration limit value
2; Main warning: speed of
secondary turbocharger too
high. Fuel limitation to a fixed
value.
1. Reduce power.
2. Contact
Service.
2.3013.912
038 AL ETC Synchro Fault Synchronization error between
ETCs 1 and 2.
1. Reduce power.
2. Contact
Service.
1.8004.205
039 AL ETC 2 cut-in failure ETC2 failed to cut in. 1. Reduce power.
2. Contact
Service.
1.8004.204
044 L1 Coolant Level
Intercooler
Alarm configuration limit value
1; Intercooler coolant level too
low. Check coolant level
(
→ Page 146).
2.0153.921
051 HI T-Lube Oil Preliminary warning: Lube oil
temperature too high.
Reduce power. 2.0125.931
052 SS T-Lube Oil Main warning: Lube oil
temperature too high; Engine
stop.
1. Reduce power.
2. Check engine
oil level
(
→ Page 130).
2.0125.932
057 LO P-Coolant Preliminary warning: Coolant
pressure too low.
Check coolant circuit.
2.0101.921
058 SS P-Coolant Main warning: Coolant
pressure too low; Engine stop
or reduced fuel injection.
1. Automatic
engine
shutdown.
2. Check
coolant level
( → Page 139).
2.0101.922
063 HI P-Crankcase Preliminary warning:
Crankcase pressure too
high.
1. Reduce power.
2. Replace oil
separator
element
( → Page 99).
2.0106.931
M015715/00E 06-08 © MTU