MTU 20V4000L33F Operating Instructions Manual page 76

1.4520.234 – Error Missing Camshaft Signal
Red alarm. Initiated by IC922.
Cause
No camshaft signal.
1.4520.235 – Error Number of Teeth
Red alarm. Initiated by IC922.
Cause
Incorrect number of teeth on
timing wheel detected.
1.4520.236 – Unknown Engine Appl. Code
Red alarm. Initiated by IC922.
Cause
Ignition setting is not correct.
1.4520.237 – OverSpeed Shutdown
Red alarm. Initiated by IC922.
Cause
Genset has exceeded admissible
speed.
1.4520.238 – E2PROM Checksum Error
Red alarm. Initiated by IC922.
Cause
Hardware not ready for
operation.
1.4520.239 – Global Timing out of Range
Yellow alarm. Initiated by IC922.
Cause
Specified global ignition timing
is beyond the valid range.
1.4520.240 – Unknown Timing or Energy Level
Red alarm. Initiated by IC922.
Cause
No global ignition timing and
power level received, CAN bus
connection is faulty.
76 | Troubleshooting | MS150108/02E 2015-03
Corrective action
u Check sensor, sensor distance and cabling, replace as
necessary.
Corrective action
1. Check timing wheel.
2. Check settings.
Corrective action
u Check setting.
Corrective action
u Restart ignition.
Corrective action
u Restart ignition.
Corrective action
u Adjust value.
Corrective action
u Check cabling and setting.