MTU 20 V 4000 G23, Technical Publication

Page: 81 / 178

76 Troubleshooting
Fault
code No. Designation Meaning Task
Related
parameter No.
082 HI P-Fuel (Common
Rail)
Rail pressure > reference
value; DBR fuel limitation, start
of injection readjusted towards
late; Suction restrictor of HP
fuel block jamming or HP fuel
control block wiring faulty. Contact Service.
2.0104.931
083
LO P-Fuel (Common
Rail)
Rail pressure <reference
value; DBR fuel limitation;
Suction restrictor of HP fuel
control block faulty or leakage
in HP fuel system.
Contact Service.
2.0104.921
085 HI T-Recirculation Preliminary warning:
Recirculation temperature
too high.
Reduce power.
2.0128.931
086 HI T-Recirculation Main warning: Recirculation
temperature too high. Reduce power.
2.0128.932
089 AL Stalling Engine Alarm configuration limit value;
Engine speed too low.
Check for additional
messages.
2.2500.030
090 SS No Idling Speed Alarm configuration limit value;
Idling speed was not attained. Contact Service.
2.1090.925
091 SS No Runup Speed Alarm configuration limit value;
Runup speed was not attained. Contact Service.
2.1090.924
092 SS No Starter Speed Alarm configuration limit
value; Starter speed was
not attained; Termination of
starting sequence; Starter
rotates too slowly or does not
rotate at all. Contact Service.
2.1090.923
093 SS T-Preheat Alarm configuration limit value
2; Main warning: preheating
temperature too low; coolant
temperature too low for engine
start; engine start interlock
active. Check preheater.
2.1090.922
094 LO T-Preheat Alarm configuration limit value
1; Preheating temperature too
low; coolant temperature too
low for engine start. Check preheater.
2.1090.921
095 AL Prelubrication Fault Alarm configuration; Oil
priming failure.
Check oil priming
system.
2.1090.920
102 AL Consumption Meter
Faulty
Alarm configuration;
Consumption meter faulty.
Contact Service. 1.8004.624
104 AL Eng Hours Counter
Defect
Alarm configuration;
Hourmeter faulty. Contact Service.
1.8004.623
118
LO ECU Supply Voltage Alarm configuration limit value
1; Preliminary warning: Supply
voltage too low.
1. Check ECU
supply voltage.
2. Contact
Service.
2.0140.921
M015715/00E 06-08 © MTU