1480 – AL_CommLost_NOx_EGAT_inl_F2
Cause
Corrective action
The ECU can no longer detect the
NOx sensor before SCR inlet 2 /
flow 2 (B88.7) on the CAN bus.
1. Check component(s) and wiring, replace as necessary.
2. Contact Service.
1483 – AL_SD_NOx_EGAT_outl_F1
Cause
Corrective action
The signal from the NOx sensor
after SCR outlet 1 / flow 1
(B88.8) is faulty or missing.
1. Check engine cabling (→ Page 321).
2. Contact Service.
1484 – AL_CommLost_NOx_EGAT_outl_F1
Cause
Corrective action
The ECU can no longer detect the
NOx sensor after the SCR outlet
1 / flow 1 (B88.8) on the CAN
bus.
1. Check component(s) and wiring, replace as necessary.
2. Contact Service.
1485 – AL_SD_NOx_EGAT_outl_F2
Cause
Corrective action
The signal from the NOx sensor
after SCR outlet 2 / flow 2
(B88.8) is faulty or missing.
1. Check engine cabling (→ Page 321).
2. Contact Service.
1486 – AL_CommLost_NOx_EGAT_outl_F2
Cause
Corrective action
The ECU can no longer detect the
NOx sensor after the SCR outlet
2 / flow 2 (B88.8) on the CAN
bus.
1. Check component(s) and wiring, replace as necessary.
2. Contact Service.
1489 – AL_CommLost_SUDU1
Cause
Corrective action
The ECU can no longer detect
supply unit / dosing unit 1
(M80.1X1, flow 1) of the SCR
system on the CAN bus.
1. Check component(s) and wiring, replace as necessary.
2. Contact Service.
1490 – AL_dosing_unit_defect_DU1
Cause
Corrective action
Supply unit / dosing unit 1
(M80.1X1, flow 1) of the SCR
system has signaled an internal
fault via component CAN bus 4.
u
Check component(s) and wiring, replace as necessary.
MS15065/01E 2019-01
| Troubleshooting | 171
TIM-ID: 0000078552 - 003
