DTC B1B87-2A: Driver-Side Lift Position Sensor Circuit Malfunction
B1B87:2A (DASH_ESU) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Driver-side lift position sensor circuit malfunction |
| Detection condition |
- The dash-electrical supply unit detects that driver-side lift position sensor circuit malfunction.
|
| Fail-safe |
- Inhibits the seat position recall and seat position programming of the position memory system.
|
| Possible cause |
- Malfunction in wiring harness (including connector/terminal) between driver-side lift position sensor and position memory control module (See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Driver-side front seat malfunction (driver-side lift position sensor circuit malfunction or driver-side lift position sensor malfunction) (Refer to [FRONT SEAT REMOVAL/INSTALLATION
]
).
- Position memory control module malfunction (Refer to [POSITION MEMORY CONTROL MODULE REMOVAL/INSTALLATION
]
).
- Dash-electrical supply unit malfunction (Refer to [DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION
]
).
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
- Operate the driver-side lift motor.
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Position memory control module |
| 2 |
Driver-side lift motor and position sensor |