MTU 20V4000L32FNER Operating Instructions Manual page 61

112317 – HI T-Exhaust B7
Yellow alarm. Initiated by EMU.
Cause
Exhaust gas temperature of this
cylinder is too high in comparison
with weighted average.
112318 – HI T-Exhaust B8
Yellow alarm. Initiated by EMU.
Cause
Exhaust gas temperature of this
cylinder is too high in comparison
with weighted average.
112319 – HI T-Exhaust B9
Yellow alarm. Initiated by EMU.
Cause
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
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
Exhaust gas temperature of this
cylinder is too low in comparison
with weighted average.
Corrective action
1. Check emission values (→ Page 47).
2. Check ignition timing (→ Page 176).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values (→ Page 47).
2. Check ignition timing (→ Page 176).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values (→ Page 47).
2. Check ignition timing (→ Page 176).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values (→ Page 47).
2. Check ignition timing (→ Page 176).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check igniter.
2. Check emission values (→ Page 47).
3. Check ignition timing (→ Page 176).
4. Check valve drive.
5. Check wiring on the ignition rail/ignition coil for thermal and
mechanical damage.
MS150122/02E 2017-09 | Troubleshooting | 61