MTU 12 V 4000 L62FB Operating Instructions Manual page 124

671 – AL NOxA Yellow
Yellow alarm
Associated parameter 1.4560.093
Cause
An internal combined alarm at
NOx sensor A was detected
672 – AL NOxB Yellow
Yellow alarm
Associated parameter 1.4560.193
Cause
An internal combined alarm at
NOx sensor B was detected
673 – AL PhyA Yellow
Yellow alarm
Associated parameter 1.4570.093
Cause
An internal combined alarm at
step motor A was detected
674 – AL PhyB Yellow
Yellow alarm
Associated parameter 1.4570.193
Cause
An internal combined alarm at
step motor B was detected
675 – AL GET Red
Red alarm
Associated parameter 1.4510.991
Cause
An internal combined alarm in
knock control was detected
676 – AL IC92x Red
Red alarm
Associated parameter 1.4520.991
Cause
An internal combined alarm in the
ignition system was detected
124 | Troubleshooting | MS150098/02E 2016-11
Corrective action
u An exact fault designation is transmitted via CAN bus to the genset
control system
Corrective action
u An exact fault designation is transmitted via CAN bus to the genset
control system
Corrective action
u An exact fault designation is transmitted via CAN bus to the genset
control system
Corrective action
u An exact fault designation is transmitted via CAN bus to the genset
control system
Corrective action
u An exact fault designation is transmitted via CAN bus to the genset
control system
Corrective action
u An exact fault designation is transmitted via CAN bus to the genset
control system