DTC B134D:02 Headlight Control Signal Error: Notes
WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| Description |
Headlight control signal error |
| Detection condition |
- Front body control module (FBCM) receives the error signal from the start stop unit for 5 s or more with the ignition switched ON (engine off or on).
|
| Fail-safe |
- If DTC B134D:02 is detected when the ignition is switched ON (engine off or on), the headlight LO and the TNS (parking lights) are illuminated.
- If DTC B134D:02 is cleared, the headlight LO and the TNS (parking lights) are turned off, and the operation returns to normal.
|
| Possible cause |
- DTCs are stored in the start stop unit.
- Front body control module (FBCM) malfunction
|
| System wiring diagram |
Not applicable |