MTU 12 V 4000 M33F Operating Instructions Manual page 144

413 – HIHI U-PDU
Injector voltage too high (limit value 2)
Red alarm; engine shutdown
Cause
Wiring damage or faulty current
supply.
414 – HI Level Water Fuel Prefilter
Water level in fuel prefilter too high (limit value 1)
Yellow alarm; warning
Cause
Water content in fuel too high.
Water ingress in fuel tank.
415 – LO P-Coolant Charge-Air Cooler
Coolant pressure in charge-air cooler too low (limit 1)
Yellow alarm; warning
Cause
Leak in coolant circuit.
416 – SS P-Coolant Charge-Air Cooler
Coolant pressure in charge-air cooler too low (limit 2)
Red alarm; engine shutdown
Cause
Leak in coolant circuit.
417 – SD Level Water Fuel Prefilter
Signal error, fuel prefilter water level sensor
Yellow alarm; warning
Cause
Fuel prefilter water level sensor
faulty.
Short circuit or wire break.
144 | Troubleshooting | MS150069/02E 2014-03
ZKP-Number: 2.0141.932
Corrective action
1. Check wiring (→ Page 260).
2. Check supply.
3. Acknowledge alarm.
4. Contact Service.
ZKP-Number: 2.0156.931
Corrective action
u Empty fuel prefilter.
ZKP-Number: 2.0107.921
Corrective action
u Top up coolant.
ZKP-Number: 2.0107.922
Corrective action
u Top up coolant.
ZKP-Number: 1.8004.594
Corrective action
1. Check sensor and wiring, replace as necessary (→ Page 260).
2. Contact Service.