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454 – SS Power Limitation Active
Cause
Corrective action
Power reduction activated. A
master alarm than is pending
activates derating.
1. Observe additional messages.
2. Contact Service.
480 – AL Ext. Engine Protection
Cause
Corrective action
The external engine protection
function is active
1. Check plant signal.
2. Contact Service.
488 – HI ETC3 Overspeed
Cause
Corrective action
The speed of the HP
turbocharger at sensor B44.3
has exceeded limit value 1. The
turbocharger speed is too high.
Cause: Defect or malfunction of
another turbocharger.
1. Reduce power.
2. Contact Service.
489 – SS ETC3 Overspeed
Cause
Corrective action
The speed of the HP
turbocharger at sensor B44.3
has exceeded limit value 1. The
turbocharger speed is too high.
Cause: Defect or malfunction of
another turbocharger.
1. Reduce power.
2. Contact Service.
536 – AL Wiring PWM_CM1
Cause
Corrective action
HP fuel control block M8 of the
HP fuel pump can not be
activated.
1. Check engine wiring (→ Page 160).
2. Contact Service.
549 – AL Voltage interruption
Cause
Corrective action
ECU operating voltage was
switched off while the engine
was running. Do not disconnect
voltage supply until the engine is
stationary.
1. If the voltage supply was not disconnected manually, check
engine wiring (→ Page 160).
2. Contact Service.
581 – AL Wiring PWM_CM3
Cause
Corrective action
The emergency-air shutoff flaps
can not be activated.
1. Check wiring to emergency-air shutoff flaps (→ Page 160).
2. Contact Service.
60 | Troubleshooting | MS150096/03E 2015-04
TIM-ID: 0000029153 - 010