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1.4520.265 – Open Primary, Channel 20
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Ignition energy was not
discharged.
1. Check cabling to ignition coil.
2. Check ignition coils.
1.4520.270 – Warn. Missing Ring Gear Signal
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Crankshaft speed signal 182 teeth
is missing.
u
Sensor B 13.2, check sensor, sensor gap and cabling, replace as
necessary .
1.4520.271 – Warning Missing Reset Signal
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Reset signal from crankshaft is
missing.
u
Check sensor B 75, sensor gap and cabling; replace as necessary.
1.4520.272 – Warn. Missing Camshaft Signal
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Missing camshaft signal for
ignition system.
u
Check sensor B 1.2, sensor gap and cabling; replace as necessary.
1.4520.273 – SCR Fault Odd
Red alarm. Initiated by IC922.
Cause
Corrective action
Hardware not ready for operation.
u
Restart ignition.
1.4520.274 – SCR Fault Even
Red alarm. Initiated by IC922.
Cause
Corrective action
Hardware not ready for operation.
u
Restart ignition.
1.4520.275 – Odd Energy Level out of Range
Yellow alarm. Initiated by IC922.
Cause
Corrective action
Specified energy level is beyond
the valid range.
u
Adjust value.
94 | Troubleshooting | MS150098/03E 2018-04
TIM-ID: 0000027854 - 002