MTU 12 V 4000 L62FB Operating Instructions Manual page 111

479 – AL Comb. Alarm Red (Plant)
Red alarm. Engine shutdown.
Associated parameter 2.8006.002
Cause
Combined alarm RED from plant.
496 – SD P-Charge Mix A
Red alarm. Engine shutdown.
Associated parameter 1.8004.628
Cause
Mixture pressure sensor on A side
defective, short circuit or wire
break.
497 – SD P-Charge Mix B
Red alarm. Engine shutdown.
Associated parameter 1.8004.629
Cause
Mixture pressure sensor on B side
defective, short circuit or wire
break.
498 – SD P-Charge Mix Diff
Red alarm.
Associated parameter 1.8004.630
Cause
Mixture differential pressure
sensor on A or B side defective,
short circuit or wire break.
499 – SD T-Charge Mix
Red alarm.
Associated parameter 1.8004.632
Cause
Mixture temperature sensor
defective, short circuit or wire
break.
Corrective action
u Combined alarm (for details, refer to the source alarm).
Corrective action
u Check sensor and cabling (B79.21), replace if necessary. Fault is
rectified following engine restart.
Corrective action
u Check sensor and cabling (B79.22), replace if necessary. Fault is
rectified following engine restart.
Corrective action
u Check sensors and cabling (B79.21, B79.22), replace if necessary.
Fault is rectified following engine restart.
Corrective action
u Check sensor and cabling (B73), replace as necessary. Fault is
rectified following engine restart.
MS150098/02E 2016-11 | Troubleshooting | 111