MTU 12 V 4000 G73 Operating Instructions Manual page 79

445 – SD P-Ambient Air
Cause
SD alarm configuration; Ambient
air pressure sensor defective.
448 – HI P-Charge Air
Preliminary warning
Cause
Alarm configuration limit value
1; Charge-air pressure too high.
449 – SS P-Charge Air
Main warning
Cause
Alarm configuration limit value
2; Charge-air pressure too high.
450 – SD Idle/End-Torque Input [%]
Cause
SD alarm configuration; Input
signal for initial/final torque
defective; Short circuit or wire
break.
454 – SS Power Reduction Active
Cause
Alarm configuration; Power
reduction is active.
455 – AL Aux 1 Plant L1
Cause
Alarm configuration limit value
1; Input signal of Aux 1 (plant
side) has exceeded/not attained
limit value 1, depending on
configuration.
ZKP-Number: 1.8004.580
Corrective action
u Replace engine governor.
ZKP-Number: 2.0103.931
Corrective action
u Contact Service.
ZKP-Number: 2.0103.932
Corrective action
u Contact Service.
ZKP-Number: 2.8006.592
Corrective action
u Check signal transmitter and cabling, replace as necessary.
Error cleared after restarting the engine.
ZKP-Number: 2.7000.011
Corrective action
1. Note further fault messages.
2. Determine the cause of the power reduction and correct it.
ZKP-Number: 2.8006.650
Corrective action
u Determine cause of limit value violation and rectify fault.
MS150029/02E 2013-03 | Troubleshooting | 79