MTU 20V4000Lx2x Operating Instructions Manual page 82

1.4520.255 – Open Primary, Channel 11
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.256 – Open Primary, Channel 12
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.257 – Open Primary, Channel 13
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.258 – Open Primary, Channel 14
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.259 – Open Primary, Channel 15
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.260 – Open Primary, Channel 16
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.262 – Open Primary, Channel 17
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
82 | Troubleshooting | MS150122/00E 2015-07
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.