DTC B1B89-2A: Slide Position Sensor Circuit Malfunction [Dash-Electrical Supply Unit]: Outline
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1B89:2A [DASH-ELECTRICAL SUPPLY UNIT] DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Slide position sensor circuit malfunction |
| Detection condition |
- The dash-electrical supply unit detects that slide position sensor circuit malfunction.
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| Fail-safe |
- Inhibits the seat position recall and seat position programming of the position memory system.
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| Possible cause |
- Position memory control module connector or terminal malfunction
- Driver-side front seat malfunction
- Short to ground in any of following slide position sensor circuits:
- Short to power supply in any of following slide position sensor circuits:
- Open circuit in any of following slide position sensor circuits:
- Power supply circuit
- Slide motor and position sensor malfunction
- Position memory control module malfunction
- Dash-electrical supply unit malfunction
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 Courtesy of MAZDA MOTORS CORP.
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