MTU 12 V 4000 Lx4 Operating Instructions Manual page 60

112419 – LO T-Exhaust B9
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
112420 – LO T-Exhaust B10
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
112501 – HIHI T-Exhaust A1
Red alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
112502 – HIHI T-Exhaust A2
Red alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
112503 – HIHI T-Exhaust A3
Red alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is
too high in comparison with
weighted average.
60 | Troubleshooting | MS15027/00E 2013-10
Corrective action
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 160).
4. Check valve drive.
Corrective action
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 160).
4. Check valve drive.
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 160)
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 160).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 160).
3. Check valve drive (exhaust valves do not close).