1015 – AL Total breakdown NOx sensors
Cause
Corrective action
Both NOx sensors (B88.1 and
B88.2) indicate sensor defect or
an invalid value.
1. Replace NOx sensors (→ Page 265).
2. Contact Service.
1019 – AL_RA_balance_plausibility_F1
Cause
Corrective action
The ratio between NOx reduction
and the reducing agent quantity
injected on the A side is below the
stored range.
u
Contact Service.
1024 – LOLO P-Fuel (Common RailA)
Cause
Corrective action
The HP fuel pressure at sensor
B48 undershot limit value 2. Fuel
pressure is too low.
1. Contact Service.
2. Contact Service.
1072 – AL_Exp_T_Exh_SCRsys_outl_F1
Cause
Corrective action
The exhaust gas temperature after
SCR measured at sensor B85.6
deviates from expected value.
u
Contact Service.
1073 – AL_HI1_gradient_T_Exh_SCR_inl_F1
Cause
Corrective action
The exhaust gas temperature
before SCR measured at sensor
B85.5 increases or has increased
too quickly. The temperature
increase rate is not plausible.
u
Contact Service.
1074 – AL_HI1_gradient_T_Exh_SCR_outl_F1
Cause
Corrective action
The exhaust gas temperature after
SCR measured at sensor B85.6
increases or has increased too
quickly. The temperature increase
rate is not plausible.
u
Contact Service.
MS15065/01E 2019-01
| Troubleshooting | 153
TIM-ID: 0000078552 - 003
