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955 – AL Thermal Management active
Cause
Corrective action
Thermal management was
activated as soot loading in the
DPF has reached the limit.
Regeneration has been initiated
automatically.
u
No action required.
973 – AL Check Sum IIG
Cause
Corrective action
The IIG value entered does not
match the defined input format.
1. Check the IIG input in DiaSys, repeat as necessary.
2. Contact Service.
974 – AL CAN3 Bus Off
Cause
Corrective action
The first engine CAN (CAN 3) for
engine sensors/actuators is
disconnected or faulty.
1. Check engine wiring (→ Page 268).
2. Contact Service.
975 – AL CAN3 Error Passive
Cause
Corrective action
The first engine CAN (CAN 3) for
engine sensors/actuators is
disrupted.
1. Check engine wiring (→ Page 268).
2. Contact Service.
976 – AL CAN4 Bus Off
Cause
Corrective action
The second engine CAN (CAN 4)
for engine sensors/actuators is
disconnected or faulty.
1. Check engine wiring (→ Page 268).
2. Contact Service.
983 – AL Stop on Trigger Crashrecorder
Cause
Corrective action
This alarm indicates that the
Crash Recorder has been tripped
and a start interlock activated as
a result.
u
Contact Service.
MS150123/01E 2017-05
| Troubleshooting | 117
TIM-ID: 0000077157 - 001