MTU 20 V 4000 G23, Technical Publication

Page: 95 / 178

90 Troubleshooting
Fault
code No. Designation Meaning Task
Related
parameter No.
433 L2 T-Aux 2 Alarm configuration limit
value 2; Preliminary warning:
Temperature signal of Aux 2
has exceeded / not attained
limit value 2, depending on
configuration.
Determine and rectify
reason for limit value
violation.
2.0131.922
436 L1 P-Aux 2
Alarm configuration limit
value 1; Preliminary warning:
Pressure signal of Aux 2
has exceeded / not attained
limit value 1, depending on
configuration.
Determine and rectify
reason for limit value
violation.
2.0111.921
437 L2 P-Aux 2 Alarm configuration limit
value 2; Preliminary warning:
Pressure signal of Aux 2
has exceeded / not attained
limit value 2, depending on
configuration.
Determine and rectify
reason for limit value
violation.
2.0111.922
440 L1 P-Aux 1 Alarm configuration limit
value 1; Preliminary warning:
Pressure signal of Aux 1
has exceeded / not attained
limit value 1, depending on
configuration.
Determine and rectify
reason for limit value
violation.
2.0110.921
442 L2 P-Aux 1
Alarm configuration limit
value 2; Preliminary warning:
Pressure signal of Aux 1
has exceeded / not attained
limit value 2, depending on
configuration.
Determine and rectify
reason for limit value
violation.
2.0110.931
444 SD U-PDU SD alarm configuration;
Injector power stage sensor
defect; Internal fault in ECU.
Replace ECU.
1.8004.578
445 SD P-Ambient Air SD alarm configuration;
Ambient air pressure sensor
faulty. Replace ECU.
1.8004.580
448 HI P-Charge Air Alarm configuration limit
value 1; Preliminary warning:
Charge-air pressure too high.
Contact Service.
2.0103.931
449
SS P-Charge Air Alarm configuration limit value
2; Main warning: Charge-air
pressure too high. Contact Service.
2.0103.932
450 SD Idle/End-Torque
Input [%]
SD alarm configuration; Input
signal for initial/final torque
faulty; short circuit or wire
break.
Check signal
transmitter and
cabling, replace as
necessary.
Error cleared after
restarting the engine.
2.8006.592
M015715/00E 06-08 © MTU