1505 – AL_dosing_unit_defect_DU6
Cause
Corrective action
Supply unit / dosing unit 6
(M80.2X1, flow 3) of the SCR
system has signaled an internal
fault via component CAN bus 5.
u
Contact Service.
1506 – AL_heater_cartridge_defect_SU6
Cause
Corrective action
The heating cartridge power
supply or the heating cartridge in
supply unit M80.2X3 is faulty.
1. Check component(s) and wiring, replace as necessary.
2. Contact Service.
1507 – AL Flap Intake Air B Defect
Cause
Corrective action
Thermal management flap 2
(M58.2) is faulty.
u
Contact Service.
1508 – AL Act Intake Air B Ref-Drv EngStop
Cause
Corrective action
This alarm is set in the fault
memory if homing of thermal
management flap 2 (M58.2) was
not successful when initiated with
the engine at standstill.
1. Check state of charge of batteries (plant side).
2. Check plug connections to Engine Control Unit (→ Page 323).
3. Contact Service.
1509 – AL Act Intake B Ref-Drv Eng Running
Cause
Corrective action
Homing of thermal management
flap 2 (M58.2) could not be
executed owing to low battery
voltage or was unsuccessful for
some other reason.
1. Check engine cabling (→ Page 321).
2. Contact Service.
1510 – AL Flap Intakeair B Wear Limit 1
Cause
Corrective action
The turning range on homing
thermal management flap 2
(M58.2) has violated limit value 1.
The flap mechanism is beginning
to wear.
u
Contact Service.
174 | Troubleshooting | MS15065/01E 2019-01
TIM-ID: 0000078552 - 003
