520 – SD P-Intake Air after Filter A
Yellow alarm.
Associated parameter 1.0186.900
Cause
Corrective action
Intake air pressure sensor after
filter on A side faulty, short circuit
or wire break.
u
Check sensor and cabling (B81.1), replace as necessary. Error
cleared after restarting the engine.
522 – SD P-Intake Air after Filter B
Yellow alarm.
Associated parameter 1.0187.900
Cause
Corrective action
Intake air pressure sensor after
filter on B side faulty, short circuit
or wire break.
u
Check sensor and cabling (B81.2), replace as necessary. Error
cleared after restarting the engine.
531 – AL Wiring PWM_CM1
Red alarm.
Associated parameter 1.1044.900
Cause
Corrective action
Wire break or short circuit on
channel PWM_CM1.
u
Check cabling to TecJet throttle, replace TecJet throttle as
necessary.
532 – AL Wiring PWM1
Red alarm.
Associated parameter 1.1046.900
Cause
Corrective action
Wire break or short circuit on
channel PWM1.
u
Check wiring to mixture throttle on A side, replace mixture throttle
on A side as necessary.
533 – AL Wiring PWM2
Red alarm.
Associated parameter 1.1047.900
Cause
Corrective action
Wire break or short circuit on
channel PWM2.
u
Check wiring to mixture throttle on B side, replace mixture throttle
on B side as necessary.
126 | Troubleshooting | MS150098/03E 2018-04
TIM-ID: 0000027858 - 002
