899 – AL OLT Communication Lost
Cause
Corrective action
The ECU can no longer detect the
J1939 combined oil temperature
and level sensor B93 on the bus.
1. Check engine wiring (→ Page 135).
2. Contact Service.
902 – HI T-Coolant Cylinder Head
Cause
Corrective action
The coolant temperature
measured at sensor B6.3 has
violated limit value 1. The coolant
temperature is too high.
u
Contact Service.
904 – SS T-Coolant Cylinder Head
Cause
Corrective action
The coolant temperature
measured at sensor B6.3 has
violated limit value 2. The coolant
temperature is too high.
u
Contact Service.
953 – AL Lambda value invalid
Cause
Corrective action
Status information of the lambda
sensor (B89), generated in case of
temporarily implausible measured
values or lambda sensor defect.
1. Acknowledge alarm.
2. Replace lambda sensor (→ Page 140).
3. Contact Service.
954 – AL NOx value invalid
Cause
Corrective action
Status information of the NOx
sensor (B88.1), generated in case
of temporarily implausible
measured values or NOx sensor
defect.
1. Acknowledge alarm.
2. Replace NOx sensor (→ Page 138).
3. Contact Service.
963 – AL GPS p5 ctrlvar max active
Cause
Corrective action
The required charging pressure
was not reached.
u
Contact Service.
964 – AL GPS p5 ctrlvar min active
Cause
Corrective action
The required charging pressure
was not reached.
u
Contact Service.
88 | Troubleshooting | MS150100/04E 2015-09
TIM-ID: 0000064702 - 001
