AutoCodesGeneric – B1B8D

B1B8D Code - Driver Seat Track Position Sensor Circuit Low

Quick Answer

The Occupant Classification Module (OCM) monitors the Driver Seat Track Position Sensor. Common causes include Faulty Driver Seat Track Position Sensor, Driver Seat Track Position Sensor harness is open or shorted, Driver Seat Track Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B1B8D indicates Driver Seat Track Position Sensor Circuit Low.
Common causes
Common causes include Faulty Driver Seat Track Position Sensor, Driver Seat Track Position Sensor harness is open or shorted, Driver Seat Track Position Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 2,228
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 22, 2019
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Code B1B8D Description

The Occupant Classification Module (OCM) monitors the Driver Seat Track Position Sensor. If the module detects that the Driver Seat Track Position Sensor input is less than or equal to 0.3 mA. This Diagnostic Trouble Code (DTC) may set when the current is between 0.3 mA and 2.0 mA.
OBDII Code B1B8D - Driver Seat Track Position Sensor Circuit Low - AutoCodes.com
B1B8D Code - Driver Seat Track Position Sensor Circuit Low

What are the Possible Causes of the DTC B1B8D?

  • Faulty Driver Seat Track Position Sensor
  • Driver Seat Track Position Sensor harness is open or shorted
  • Driver Seat Track Position Sensor circuit poor electrical connection
  • Faulty Occupant Classification Module (OCM)

How to Fix the DTC B1B8D?

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 B1B8D 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.

Need more information about the B1B8D code?

Need more information on how to fix the B1B8D code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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.

Frequently Asked Questions about B1B8D Code

1. What are common symptoms of OBDII code B1B8D (Driver Seat Track Position Sensor Circuit Low)?

The common symptoms of code B1B8D include the driver's seat being unable to move forward or backward properly, erratic movement of the seat, or the seat getting stuck in one position.

2. What are the possible causes of OBDII code B1B8D?

The code B1B8D is typically caused by a malfunction in the driver seat track position sensor circuit, which can be due to issues such as damaged wiring, a faulty sensor, or a poor connection.

3. How can I diagnose OBDII code B1B8D?

Diagnosing code B1B8D involves using a scan tool to retrieve the code, checking the wiring and connections related to the driver seat track position sensor, and testing the sensor itself for proper functionality.

4. Can OBDII code B1B8D be repaired at home?

Simple repairs for code B1B8D, such as checking and repairing damaged wiring or connectors, can be done at home if you have the necessary tools and expertise. However, complex issues may require professional assistance.

5. Is it safe to drive with OBDII code B1B8D active?

It is not recommended to drive with code B1B8D active, as it can affect the proper functioning of the driver's seat, potentially leading to discomfort or safety hazards while driving.

6. How much does it typically cost to repair OBDII code B1B8D?

The cost of repairing code B1B8D can vary depending on the underlying cause of the issue. Simple fixes like repairing wiring may be inexpensive, while replacing a faulty sensor or module can be more costly.

7. Can resetting the OBDII system clear code B1B8D?

Resetting the OBDII system may temporarily clear code B1B8D, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again.

8. Are there any DIY tips for preventing OBDII code B1B8D from recurring?

Regularly checking the wiring and connectors related to the driver seat track position sensor, keeping the seat track clean and free of debris, and avoiding sudden movements of the seat can help prevent code B1B8D from recurring.

9. How urgent is it to address OBDII code B1B8D?

While code B1B8D may not cause immediate safety concerns, it is important to address the issue promptly to ensure the proper functioning of the driver's seat and prevent any inconvenience or discomfort while driving.

10. Can code B1B8D affect other systems in the vehicle?

Code B1B8D is specific to the driver seat track position sensor circuit and is unlikely to directly affect other systems in the vehicle. However, addressing the issue promptly is still recommended to maintain overall vehicle functionality.

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