112319 – HI T-Exhaust B9
Yellow alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
1. Check emission values.
2. Check ignition timing (→ Page 140).
3. Check valve drive (exhaust valves do not close).
112320 – HI T-Exhaust B10
Yellow alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
1. Check emission values.
2. Check ignition timing (→ Page 140).
3. Check valve drive (exhaust valves do not close).
112401 – LO T-Exhaust A1
Yellow alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 140).
4. Check valve drive.
112402 – LO T-Exhaust A2
Yellow alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 140).
4. Check valve drive.
112403 – LO T-Exhaust A3
Yellow alarm. Initiated by EMU.
Cause
Corrective action
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
1. Check spark plug.
2. Check emission values.
3. Check ignition timing (→ Page 140).
4. Check valve drive.
56 | Troubleshooting | MS150098/02E 2016-11
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