970 – SD P-Exhaust
Cause
Corrective action
The signal from the exhaust gas
pressure sensor (B91.3) is faulty
or missing.
1. Check engine wiring (→ Page 135).
2. Contact Service.
973 – AL Check Sum IIG
Cause
Corrective action
The IIG value entered does not
match the defined input format.
1. Check IIG input in DiaSys, repeat as necessary.
2. Contact Service.
974 – AL CAN3 Bus Off
Cause
Corrective action
The first Engine CAN (CAN 3)
connected to the engine sensors/
actuators is disrupted or faulty.
1. Check engine wiring (→ Page 135).
2. Contact Service.
975 – AL CAN3 Error Passive
Cause
Corrective action
The first Engine CAN (CAN 3)
connected to the engine sensors/
actuators is faulty.
1. Check engine wiring (→ Page 135).
2. Contact Service.
976 – AL CAN4 Bus Off
Cause
Corrective action
The second Engine CAN (CAN 4)
connected to the engine sensors/
actuators is disrupted or faulty.
1. Check engine wiring (→ Page 135).
2. Contact Service.
977 – AL CAN4 Error Passive
Cause
Corrective action
The second Engine CAN (CAN 4)
connected to the engine sensors/
actuators is faulty.
1. Check engine wiring (→ Page 135).
2. Contact Service.
983 – AL Stop on Trigger Crashrecorder
Cause
Corrective action
The alarm indicates that the Crash
Recorder was triggered and a
start interlock has been activated
as a result.
u
Contact Service.
MS150100/04E 2015-09
| Troubleshooting | 89
TIM-ID: 0000064702 - 001
