MTU 12V4000G34F Operating Instructions Manual page 92

65 – LO P-Fuel
Cause
The fuel pressure at sensor B34.1
has violated limit value 1. Fuel
pressure is too low.
66 – SS P-Fuel
Cause
The fuel pressure at sensor B34.1
has violated limit value 2. Fuel
pressure is too low.
67 – HI T-Coolant
Cause
The coolant temperature at
sensor B6 has violated limit value
1. Coolant temperature is too
high.
68 – SS T-Coolant
Cause
The coolant temperature at
sensor B6 has violated limit value
2. Coolant temperature is too
high.
82 – HI P-Fuel (Common Rail)
Cause
The HP fuel pressure at sensor
B48 has violated the limit value.
Fuel pressure is too high.
83 – LO P-Fuel (Common Rail)
Cause
The HP fuel pressure at sensor
B48 has violated the limit value.
Fuel pressure is too low.
89 – SS Engine Speed too Low
Cause
The engine speed has violated the
limit value. Engine emergency
stop has been tripped.
92 | Troubleshooting | MS15060/01E 2018-12
Corrective action
1. Replace fuel prefilter (→ Page 161).
2. Replace additional fuel filter (→ Page 153).
3. Replace fuel filter (→ Page 152).
4. Contact Service.
Corrective action
1. Replace fuel prefilter (→ Page 161).
2. Replace additional fuel filter (→ Page 153).
3. Replace fuel filter (→ Page 152).
4. Contact Service.
Corrective action
1. Reduce power.
2. Check operation of cooler and fan (plant side).
3. Check engine coolant level (→ Page 184).
4. Contact Service.
Corrective action
1. Check operation of cooler and fan (plant side).
2. Check engine coolant level (→ Page 184).
3. Contact Service.
Corrective action
u Contact Service.
Corrective action
u Contact Service.
Corrective action
1. Acknowledge alarm.
2. Check for additional messages.
3. Contact Service.