MTU 12V4000L32FB Operating Instructions Manual page 114

478 – AL Comb. Alarm Yel (Plant)
Yellow alarm.
Associated parameter 2.8006.001
Cause
Combined YELLOW alarm from
plant.
479 – AL Comb. Alarm Red (Plant)
Red alarm. Engine shutdown.
Associated parameter 2.8006.002
Cause
Combined RED alarm 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.
114 | Troubleshooting | MS150115/00E 2013-10
Corrective action
u Combined alarm (for details, refer to the source alarm).
Corrective action
u Combined alarm (for details, refer to the source alarm).
Corrective action
u Check sensor and cabling (B79.21), replace as necessary. Fault
is rectified following engine restart.
Corrective action
u Check sensor and cabling (B79.22), replace as necessary. Fault
is rectified following engine restart.
Corrective action
u Check sensors and cabling (B79.21, B79.22), replace as
necessary. Fault is rectified following engine restart.