DTC B2439: Headlight LH Circuit; DTC B243A: Headlight RH Circuit [12/2017 - 10/2023]: Description
The headlight ECU sub-assembly supplies internally boosted voltage to the LED so that the current supplied to the LED is always maintained at a constant value.
These DTCs are also output when the headlight ECU sub-assembly detects malfunctions while monitoring the applied voltage.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Note |
|---|---|---|---|---|---|
| B2439 | Headlight LH Circuit | Detection condition:
Malfunction status:
Malfunction duration:
|
|
AFS | - |
| B243A | Headlight RH Circuit | Detection condition:
Malfunction status:
Malfunction duration:
|
|
AFS (Sub) | - |