MTU 12 V 4000 Lx4 Operating Instructions Manual page 127

458 – LOLO T-Intake Air
Red alarm. Engine stop.
Associated parameter 2.0123.922
Cause
Intake air temperature is too low
(limit value 4).
459 – SD P-Coolant b. Engine
Red alarm.
Associated parameter 1.8004.627
Cause
Coolant pressure sensor before
engine defective, short circuit or
wire break.
470 – SD T-ECU
Red alarm.
Associated parameter 1.8004.587
Cause
Temperature sensor for engine
governor defective, short circuit
or wire break.
472 – AL Stop SD
Red alarm. Engine stop.
Associated parameter 2.8006.593
Cause
Engine stop, since all shutdown
channels have "sensor faulty".
476 – AL Crash Rec.Init Fault
Red alarm.
Associated parameter 1.8010.007
Cause
Initialization error of crash
recorder.
478 – AL Comb. Alarm Yel (Plant)
Yellow alarm.
Associated parameter 2.8006.001
Cause
Combined alarm YELLOW from
plant.
Corrective action
u Check ventilation system.
Corrective action
u Check sensor and cabling (B16.3), replace if necessary. Fault is
rectified following engine restart.
Corrective action
u Check sensor and cabling, replace as necessary. Fault is
rectified following engine restart.
Corrective action
u Combined alarm (for details, refer to the source alarm).
Corrective action
u Contact Service.
Corrective action
u Combined alarm (for details, refer to the source alarm).
MS15027/00E 2013-10 | Troubleshooting | 127