DTC B1048 7B: Brake Fluid Level Sensor Circuit Malfunction: Notes
WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1048:7B (FRONT BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSES
| Description |
Brake fluid level sensor circuit malfunction |
| Detection condition |
- Front body control module (FBCM) detected that the brake fluid level is less than MIN with the ignition switched ON (engine off or on).
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| Fail-safe function |
Not applicable |
| Possible cause |
- Insufficient brake fluid level
- Brake fluid level sensor connector or terminal malfunction
- Front body control module (FBCM) connector or terminal malfunction
- Short to ground in wiring harness between brake fluid level sensor terminal B and front body control module (FBCM) terminal 2Q
- Brake fluid level sensor malfunction
- Front body control module (FBCM) malfunction
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 Courtesy of MAZDA MOTORS CORP.
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