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DTC B1439-87: Communication Error With Front Combination Light (RH) [Adaptive Front Lighting System (AFS) Control Module]
WARNING: This page is about a different car, the 2024 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
B1439: 87 (ALH/AFS/ALV) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Communication error with front combination light (RH) |
| Detection condition |
- The adaptive LED headlights control module detected communication error with the front combination light (RH).
|
| Fail-safe |
- The headlight leveling actuator is stopped at the position when the malfunction is determined.
|
| Possible cause |
- Front combination light (RH) malfunction (Refer to applicable FRONT COMBINATION LIGHT REMOVAL/INSTALLATION
in the service information.)
- Adaptive LED headlights control module malfunction (Refer to applicable ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION
in the service information.)
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (see CLEARING DTC
.)
|
| System wiring diagram |
|