AutoCodes – Lincoln – B1B97 Lincoln

B1B97 Lincoln Code - Seat Slide Backward Switch Signal Stuck High

Quick Answer

The diagnostic trouble code (DTC) B1B97 indicates that the seat slide backward switch signal is stuck high, meaning that the signal indicating the seat is moving backward is continuously active. Common causes include Faulty Seat Control Switch, Seat Control Switch harness is open or shorted, Seat Control Switch circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1B97 Lincoln indicates Seat Slide Backward Switch Signal Stuck High.
Common causes: Common causes include Faulty Seat Control Switch, Seat Control Switch harness is open or shorted, Seat Control Switch circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 17

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 26, 2026

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code B1B97 Lincoln Description

The diagnostic trouble code (DTC) B1B97 indicates that the seat slide backward switch signal is stuck high, meaning that the signal indicating the seat is moving backward is continuously active. This situation can occur if the seat control switch is engaged for more than two minutes or if it remains active during the vehicle's self-test phase. The Driver Front Seat Module (DSM) monitors the position and function of the seat adjustments, including the slide mechanism. When the switch signal is stuck high, it can lead to unintended seat movement, which may compromise driver comfort and safety. If ignored, this issue can result in increased wear on the seat adjustment components and may lead to further electrical problems in the seat control system. Over time, continued operation with this DTC may also affect the functionality of other systems that rely on the DSM, such as airbag deployment, as the seat position is critical for proper airbag operation. Therefore, addressing this code promptly is essential to ensure the vehicle's safety features remain operational and to prevent more extensive repairs down the line.

OBDII Code B1B97 Lincoln - Seat Slide Backward Switch Signal Stuck High - AutoCodes.com — B1B97 Lincoln Code - Seat Slide Backward Switch Signal Stuck High

What does this mean?

What are the Possible Causes of the DTC B1B97 Lincoln?

Faulty Seat Control Switch
Seat Control Switch harness is open or shorted
Seat Control Switch circuit poor electrical connection
Faulty Seat Motor
Faulty Driver Front Seat Module (DSM)

How to Fix the DTC B1B97 Lincoln?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1B97 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.