491 – SS ETC4 Overspeed
ZKP-Number: 2.3015.932
Speed of the 3rd secondary turbocharger too high (limit value 2)
Red alarm - engine shutdown
Cause
Corrective action
Obstructed charge-air circuit or
fault in turbocharger.
u
Reduce power.
500 – AL Wiring POM Starter 1
ZKP-Number: 1.4500.900
Wiring faulty, connection of starter 1 at POM
Yellow alarm - warning
Cause
Corrective action
Missing consumer.
Short circuit or wire break
u
Check connection between POM and starter.
501 – AL Wiring POM Starter 2
ZKP-Number: 1.4500.901
Wiring faulty, connection of starter 2 at POM
Yellow alarm - warning
Cause
Corrective action
Missing consumer.
Short circuit or wire break
u
Check connection between POM and starter.
502 – AL Open Load POM Battery-Charging Generator
ZKP-Number: 1.4500.902
Open circuit at battery-charging generator connection to POM
Yellow alarm - warning
Cause
Corrective action
Wiring faulty or no resistance
over switch.
u
Check connection between POM and battery-charging
generator.
503 – AL No Battery Charge
ZKP-Number: 1.4500.903
No battery charge
Yellow alarm - warning
Cause
Corrective action
Battery is not charged by
battery-charging generator.
u
Check battery-charging generator and wiring (→ Page 181).
MS150096/01E 2012-08 | Troubleshooting | 89
TIM-ID: 0000029153 - 006
