MTU 20V4000Lx2x Operating Instructions Manual page 59

112319 – HI T-Exhaust B9
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
112320 – HI T-Exhaust B10
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
112401 – LO T-Exhaust A1
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is too
low in comparison with weighted
average.
112402 – LO T-Exhaust A2
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is too
low in comparison with weighted
average.
112403 – LO T-Exhaust A3
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is too
low in comparison with weighted
average.
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 143).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 143).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 143).
4. Check valve drive.
Corrective action
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 143).
4. Check valve drive.
Corrective action
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 143).
4. Check valve drive.
MS150122/00E 2015-07 | Troubleshooting | 59