MTU 12V2000Gx6 series Operating Instructions Manual page 101

413 – HIHI U-PDU
Yellow alarm; warning
Cause
Injector voltage too high (Level 2).
414 – HI Level Water Fuel Prefilter
Yellow alarm; warning
Cause
Water level in fuel prefilter too
high.
415 – LO P-Coolant Intercooler
Yellow alarm; warning
Cause
Coolant pressure in intercooler
too low (Level 1).
416 – SS P-Coolant Intercooler
Yellow alarm; warning
Cause
Coolant pressure in intercooler
too low (Level 2).
417 – SD Level Water Fuel Prefilter
Yellow alarm; warning
Cause
Water level sensor of fuel prefilter
faulty, short circuit or wire break.
438 – LO P-Fuel 2 (Common Rail)
Yellow alarm; warning
Cause
Rail pressure below specified
value.
Suction restrictor of HP fuel
control block faulty or leakage in
HP fuel system.
Corrective action
u Perform Engine Control Unit self-test, replace as necessary.
Corrective action
u Empty fuel prefilter.
Corrective action
1. Check coolant level in expansion tank, top up as necessary.
2. Check coolant circuit for leaks.
3. Check coolant pump.
Corrective action
1. Check coolant level in expansion tank, top up as necessary.
2. Check coolant circuit for leaks.
3. Check coolant pump.
Corrective action
u Check sensor F70 and wiring, replace as necessary .
Corrective action
u Contact Service.
MS15054/03E 2018-07 | Troubleshooting | 101