AutoCodesGeneric – B1731

B1731 Code - Seat Driver Rear Down Switch Circuit Short To Battery

Quick Answer

The Body Control Module (BCM) monitors the Seat Driver Rear Down Switch. Common causes include Faulty Seat Driver Rear Down Switch, Seat Driver Rear Down Switch harness is open or shorted, Seat Driver Rear Down Switch 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
B1731 indicates Seat Driver Rear Down Switch Circuit Short To Battery.
Common causes
Common causes include Faulty Seat Driver Rear Down Switch, Seat Driver Rear Down Switch harness is open or shorted, Seat Driver Rear Down Switch 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 9,455
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 23, 2019
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Code B1731 Description

The Body Control Module (BCM) monitors the Seat Driver Rear Down Switch. The BCM sets the OBDII code when the Seat Driver Rear Down Switch is not to factory specifications.
OBDII Code B1731 - Seat Driver Rear Down Switch Circuit Short To Battery - AutoCodes.com
B1731 Code - Seat Driver Rear Down Switch Circuit Short To Battery

What are the Possible Causes of the DTC B1731?

  • Faulty Seat Driver Rear Down Switch
  • Seat Driver Rear Down Switch harness is open or shorted
  • Seat Driver Rear Down Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1731?

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 B1731 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 B1731 code?

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Need Help with the Code?

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Information for Specific Makes

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 B1731 Code

1. What does OBDII code B1731 mean?

B1731 indicates a short to battery in the driver seat rear down switch circuit, which controls the seat adjustment mechanism.

2. What are common symptoms of code B1731?

Symptoms include the driver’s seat not moving down as intended, limited seat adjustment, or unresponsive seat controls.

3. What causes the B1731 code to appear?

Common causes include damaged wiring, a faulty seat adjustment switch, or a short circuit in the seat motor or related wiring.

4. How can I diagnose the B1731 code?

Inspect the seat adjustment switch, check for damaged or frayed wiring, and test the circuit for continuity or short circuits using a multimeter.

5. Can I still drive my car with code B1731?

Yes, the code does not affect drivability, but it may compromise your seating comfort and safety if adjustments are needed.

6. How do I fix the B1731 code?

Repairs may include replacing or repairing damaged wiring, replacing the seat adjustment switch, or repairing the seat motor if necessary.

7. How much does it cost to fix the B1731 code?

The cost depends on the specific issue, but repairs can range from $50 for wiring fixes to $200 or more for switch or motor replacement.

8. Can I fix the B1731 code myself?

If you’re comfortable working with electrical systems, you can attempt basic diagnostics and repairs like checking wires or replacing the switch. Otherwise, seek professional help.

9. Will resetting the code fix the problem?

Resetting the code may temporarily clear it, but the underlying issue must be repaired to prevent the code from returning.

10. Is the B1731 code common?

This code is relatively uncommon and specific to vehicles with power-adjustable seats, typically appearing after electrical faults or wear-and-tear.

Discuss the causes and fixes for B1731 OBDII Code

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