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452 – HIHI T-Charge Mix
Red alarm. Engine shutdown.
Associated parameter 2.0169.932
Cause
Corrective action
Mixture temperature too high
(limit value 2). Mixture coolant
pump failure, volumetric flow too
low, cooling system inlet
temperature too high, mixture
cooler clogged.
1. Check mixture cooling circuit.
2. Check mixture cooler for dirt.
453 – LO T-Charge Mix
Yellow alarm.
Associated parameter 2.0169.921
Cause
Corrective action
Mixture temperature is too low
(limit value 3).
1. Check intake air temperature.
2. Check mixture cooling circuit.
454 – SS Power Reduction Active
Yellow alarm.
Associated parameter 2.7000.011
Cause
Corrective action
Power reduction activated.
1. Rectify limit value violation of the source alarm (e.g. reduce intake
temperature).
2. Check exhaust system components for leaks/cracks
457 – LO T-Intake Air
Yellow alarm.
Associated parameter 2.0123.921
Cause
Corrective action
Intake air temperature is too low
(limit value 3).
u
Check ventilation system.
458 – LOLO T-Intake Air
Red alarm. Engine shutdown.
Associated parameter 2.0123.922
Cause
Corrective action
Intake air temperature is too low
(limit value 4).
u
Check ventilation system.
150 | Troubleshooting | MS150116/04E 2018-04
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