![MTU 20V4000L32FB Operating Instructions Manual Download Page 95](http://html1.mh-extra.com/html/mtu/20v4000l32fb/20v4000l32fb_operating-instructions-manual_1852707095.webp)
1.4520.246 – Open Primary, Channel 2
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Ignition energy was not
discharged.
1. Check cabling to ignition coil (→ Page 227).
2. Check ignition coils.
1.4520.247 – Open Primary, Channel 3
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Ignition energy was not
discharged.
1. Check cabling to ignition coil (→ Page 227).
2. Check ignition coils.
1.4520.248 – Open Primary, Channel 4
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Ignition energy was not
discharged.
1. Check cabling to ignition coil (→ Page 227).
2. Check ignition coils.
1.4520.249 – Open Primary, Channel 5
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Ignition energy was not
discharged.
1. Check cabling to ignition coil (→ Page 227).
2. Check ignition coils.
1.4520.250 – Open Primary, Channel 6
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Ignition energy was not
discharged.
1. Check cabling to ignition coil (→ Page 227).
2. Check ignition coils.
1.4520.251 – Open Primary, Channel 7
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Ignition energy was not
discharged.
1. Check cabling to ignition coil (→ Page 227).
2. Check ignition coils.
1.4520.252 – Open Primary, Channel 8
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Ignition energy was not
discharged.
1. Check cabling to ignition coil (→ Page 227).
2. Check ignition coils.
MS150116/04E 2018-04
| Troubleshooting | 95
TIM-ID: 0000038611 - 006