DTC B1D0A:29 [ADAPTIVE LED HEADLIGHTS CONTROL MODULE]


id1502c1068100


Outline

System malfunction location

Communication error with front combination light (RH)

Detection condition
•  The adaptive LED headlights control module received error signals from the front combination light (RH).
Fail-safe
•  Control of the adaptive LED headlights system is continued.
•  The wide-range, low beam on the malfunctioning side is turned off.
•  Control of the headlight auto leveling system is continued.
Possible cause
•  Front combination light (RH) malfunction
•  Adaptive LED headlights control module malfunction
System wiring diagram
Not applicable
Connector diagram
Not applicable


Diagnostic Procedure

Step

Inspection

Action

1
INSPECT FRONT COMBINATION LIGHT (RH) FOR MALFUNCTION DEPENDING ON REPEATABILITY
•  Clear the DTC recorded in the memory.
•  Perform the DTC inspection for the adaptive LED headlights control module.
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, replace the front combination light (RH) and perform the repair completion verification.
No
Go to repair completion verification 2.
Repair completion verification 1
VERIFY THAT VEHICLE IS REPAIRED
•  Install/connect the part removed/disconnected during the troubleshooting procedure.
•  Clear the DTC recorded in the memory.
•  Perform the DTC inspection for the adaptive LED headlights control module.
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
•  If the malfunction recurs, replace the adaptive LED headlights control module, then go to the next step.
No
Go to the next step.
Repair completion verification 2
VERIFY IF OTHER DTC IS DISPLAYED
•  Perform the DTC inspection.
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.