DTC B243D: Left Low Beam Fan Malfunction; DTC B243E: Right Low Beam Fan Malfunction [02/2019 - 12/2021]: Description
WARNING: This page is about a different car, the 2021 Toyota RAV4, 2020 Toyota RAV4, and 2019 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
The headlight ECU sub-assembly operates the low beam fan to cool the headlight LED unit in order to prevent the headlight LED unit from overheating.
Illuminates the low beam headlights and continuously operates the low beam fan.
The headlight ECU sub-assembly monitors the pulse signals from the FANP terminal when the low beam fans are operating.
HINT:
If B243D or B243E is output, the headlight ECU sub-assembly performs low beam headlight dimming control.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Note |
|---|---|---|---|---|---|
| B243D | Left Low Beam Fan Malfunction | Detection condition:
Malfunction status:
Malfunction duration:
|
|
AFS | - |
| B243E | Right Low Beam Fan Malfunction | Detection condition:
Malfunction status:
Malfunction duration:
|
|
AFS (Sub) | - |