MTU 12 V 4000 L63 Operating Instructions Manual page 111

121 – HIHI ECU Supply Voltage
Red alarm.
Associated parameter 2.0140.932
Cause
Supply voltage too high (limit
value 2).
122 – HI T-ECU
Yellow alarm.
Associated parameter 2.0132.921
Cause
Electronics temperature too high
(limit value 1).
176 – AL LifeData not available
Red alarm.
Associated parameter 2.4000.004
Cause
No (suitable) LifeData backup
system available after expiry of
timeout following ECU reset.
Backup system has no LifeData
feature or CAN bus to backup
system is disrupted.
177 – AL LifeData restore incomplete
Red alarm.
Associated parameter 2.4000.006
Cause
This fault message is generated
if a CRC is faulty (is indicated for
each module) during a restore
data upload (in the ADEC) or if
the upload is incomplete.
ZKP-Number:
Corrective action
1. Check supply voltage.
2. Check cabling.
ZKP-Number:
Corrective action
u Improve cooling of governor. Reduce room temperature, check
air flow to ADEC.
ZKP-Number:
Corrective action
u Contact Service. (error on project data).
ZKP-Number:
Corrective action
u Power up ECU, contact Service.
MS150058/01E 2012-07 | Troubleshooting | 111