MTU 20 V 4000 G23, Technical Publication

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72 Troubleshooting
5.2 Engine governor ADEC (ECU 7) for Series 4000
genset engines - Fault messages
The fault code numbers are generated by the Engine Control Unit and transmitted to the following display.
The fault code (1) comprises 3 digits.
Fault messages may also be caused by faulty sensors/actuators. Contact Service to have sensors/actuators tested
and replaced as necessary if troubleshooting as described in the table below proves unsuccessful.
The table below lists possible fault codes:
Fault
code No. Designation Meaning Task
Related
parameter No.
003 HI T-Fuel Preliminary warning: Fuel
temperature too high.
Contact Service.
2.0122.931
004 SS T-Fuel Main warning: Fuel
temperature too high; Engine
stop.
Contact Service.
2.0122.932
005 HI T-Charge Air Preliminary warning:
Charge-air temperature
too high
1. Reduce power.
2. Check
intercooler.
2.0121.931
006 SS T-Charge Air Main warning: Charge-air
temperature too high; Engine
stop.
1. Reduce power.
2. Check
intercooler.
2.0121.932
009 AL L1 T-Coolant
Intercooler
Preliminary warning: Coolant
pressure in intercooler too low.
Reduce power. 2.0124.931
010 AL L2 T-Coolant
Intercooler
Main warning: Charge-air
coolant temperature too high;
Engine stop.
Reduce power. 2.0124.932
015 LO P-Lube Oil Preliminary warning: Lube oil
pressure too low.
Check oil level, top
up as necessary
( → Page 130).
2.0100.921
M015715/00E 06-08 © MTU