MTU 12V 4000 L32 F Operating Instructions Manual page 128

092 – SS No Starter Speed
Red alarm. start is terminated.
Associated parameter 2.1090.923
Cause
Minimum speed for flushing
process and ignition release was
not attained.
093 – SS T-Preheat
Red alarm. Engine shutdown.
Associated parameter 2.1090.922
Cause
Preheating temperature too low
(limit value 2). coolant
temperature too low for engine
start.
094 – LO T-Preheat
Yellow alarm.
Associated parameter 2.1090.921
Cause
Preheating temperature too low
(limit value 1). coolant
temperature too low for engine
start.
095 – AL Prelube Fault
Red alarm. start is terminated.
Associated parameter 2.1090.920
Cause
Prelube fault.
104 – AL Eng Hours Counter Defect
Yellow alarm.
Associated parameter 1.8004.623
Cause
Operating hours meter faulty.
Internal Engine Control Unit fault.
128 | Troubleshooting | MS150104/02E 2016-11
Corrective action
u Check starter system.
Corrective action
1. Check preheating.
2. Check differential coolant pressure.
3. Check heating elements.
4. Check cabling (→ Page 201).
Corrective action
1. Check preheating.
2. Check differential coolant pressure.
3. Check heating elements.
4. Check cabling (→ Page 201).
Corrective action
1. Check oil pressure, oil temperature, oil level.
2. Check oil priming pump.
Corrective action
u Replace Engine Control Unit.