AutoCodes – Generic – B1729

B1729 Code - Seat Driver Rear Down Switch Circuit Failure

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: B1729 indicates Seat Driver Rear Down Switch Circuit Failure.
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.

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Code Popularity 4,009

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1729 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 B1729 - Seat Driver Rear Down Switch Circuit Failure - AutoCodes.com — B1729 Code - Seat Driver Rear Down Switch Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1729?

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 B1729?

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 B1729 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 B1729 code?

Need more information on how to fix the B1729 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1729 code diagnosed by a professional: Find a repair shop in your area

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 B1729 Code

1. What are the common symptoms of OBDII code B1729 (Seat Driver Rear Down Switch Circuit Failure)?

- The common symptoms include the driver's rear seat not moving up or down when the switch is activated.

2. What are the possible causes of OBDII code B1729?

- The code B1729 may be caused by a faulty rear seat switch, damaged wiring, or a problem with the seat control module.

3. How can I diagnose the Seat Driver Rear Down Switch Circuit Failure issue?

- You can start by checking the wiring and connections related to the rear seat switch, testing the switch itself, and using a diagnostic tool to scan for the specific error code.

4. Can I continue driving my vehicle with the B1729 code?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid any inconvenience.

5. How can I repair OBDII code B1729 at home?

- If you have experience with automotive electrical systems, you can try checking the wiring, connectors, and switch for any visible damage or issues. However, for a precise repair, professional help may be needed.

6. Will resetting the error codes make the B1729 code disappear permanently?

- Resetting the error codes may clear the code temporarily, but if the underlying issue causing the B1729 code is not fixed, it is likely to reappear upon the next diagnostic scan.

7. Is it possible to bypass the Seat Driver Rear Down Switch Circuit Failure temporarily?

- While it is possible to bypass the switch to manually adjust the rear seat position, this is not recommended as a long-term solution. It is best to address the root cause of the issue.

8. How much does it typically cost to repair OBDII code B1729 at a repair shop?

- The cost of repairing the B1729 code can vary depending on the exact cause of the issue, labor rates, and parts needed. It is recommended to get a diagnostic assessment from a qualified mechanic for an accurate estimate.

9. Can a DIY enthusiast with limited experience fix the Seat Driver Rear Down Switch Circuit Failure?

- While it is possible for someone with basic automotive knowledge to attempt a repair, dealing with electrical issues can be complex. It is advisable to seek professional help if unsure.

10. Are there any recalls or technical service bulletins related to OBDII code B1729?

- It is recommended to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to the B1729 code to see if the issue is covered under warranty or a known problem.