DTC B2900: AHL Control
DTC detecting condition:
Detected when internal malfunction occurs in the auto headlight beam leveler Control Module.
Trouble symptom:
The auto headlight beam leveler does not operate.
CAUTION:
Initialization is required after replacing the auto headlight beam leveler Control Module. Re. to LIGHTING SYSTEM>AUTO HEADLIGHT BEAM LEVELER SYSTEM>PROCEDURE
.
- Turn the ignition switch OFF → ON.
- Turn on the headlight low beam.
- Using the Subaru Select Monitor, perform the clear memory of [Headlight/Foglight]. Re. to COMMON (DIAGNOSTICS)>CLEAR MEMORY .
- Read the DTC of [Headlight/Foglight] using the Subaru Select Monitor. Re. to HEADLIGHT/FOGLIGHT (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Is any of DTC B2900, B2916, B2917, B2918, B2919 or B291A displayed? (Current malfunction)
Yes: Replace the auto headlight beam leveler Control Module. Re. to LIGHTING SYSTEM>AUTO HEADLIGHT BEAM LEVELER CONTROL MODULE .
No: Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE:
In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.