MTU 16V4000Lx2x Operating Instructions Manual page 84

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.
1.4520.263 – Open Primary, Channel 18
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.264 – Open Primary, Channel 19
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.265 – Open Primary, Channel 20
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.270 – Warn. Missing Ring Gear Signal
Yellow alarm. Initiated by IC922.
Cause
Crankshaft signal 182 teeth is
missing.
84 | Troubleshooting | MS150121/00E 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
u Check sensor B13.3, sensor distance and cabling; replace if
necessary.