MTU 12 V 4000 L63 Operating Instructions Manual page 79

152019 – Global Timing out of Range
Yellow alarm. Initiated by IC922.
Cause
Specified global ignition timing is
beyond the valid range.
152020 – Unknown Timing or Energy Level
Red alarm. Initiated by IC922.
Cause
No global ignition timing and
power level received, CAN bus
connection is faulty.
152021 – Individual Timing out of Range
Yellow alarm. Initiated by IC922.
Cause
Specified individual ignition
timing is beyond the valid range.
152023 – Selftest Shutdown
Cause
Self-test is active with the engine
rotating.
152024 – Open Primary Rate Exceeded
Red alarm. Initiated by IC922.
Cause
Admissible summation of
discharge faults is reached.
152026 – Open Primary, Channel 1
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
152027 – Open Primary, Channel 2
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
Corrective action
u Adjust value.
Corrective action
u Check cabling and setting.
Corrective action
u Adjust value.
Corrective action
u Restart ignition system.
Corrective action
1. Check associated cabling.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coil.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coil.
MS150058/01E 2012-07 | Troubleshooting | 79