Engine-CodesGeneric – B1649

B1649 Code - Seat Driver Recline Forward Circuit Short To Battery

Quick Answer

The B1649 diagnostic trouble code indicates that there is a short circuit between the driver's seat recline forward circuit and the battery. Common causes include Damaged wiring or connectors in the recline forward circuit, Short circuit due to water or liquid damage, Faulty seat control module. 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
B1649 indicates Seat Driver Recline Forward Circuit Short To Battery.
Common causes
Common causes include Damaged wiring or connectors in the recline forward circuit, Short circuit due to water or liquid damage, Faulty seat control module.
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.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code B1649 Description

The B1649 diagnostic trouble code indicates that there is a short circuit between the driver's seat recline forward circuit and the battery. This issue can have a significant impact on the functionality of the driver's seat in the vehicle. The recline forward circuit is responsible for adjusting the seat to move forward, and a short to the battery can disrupt this operation.

OBDII Code B1649 - Seat Driver Recline Forward Circuit Short To Battery
B1649 Code - Seat Driver Recline Forward Circuit Short To Battery

Common Causes of B1649

  1. Damaged wiring or connectors in the recline forward circuit.
  2. Short circuit due to water or liquid damage.
  3. Faulty seat control module.
  4. Electrical issues in the vehicle's wiring harness.
  5. Defective seat motor or mechanism.

Symptoms of B1649

  1. Inability to adjust the driver's seat forward.
  2. Seat moving erratically or getting stuck in one position.
  3. Malfunctioning seat controls.
  4. Warning light on the dashboard related to the seat adjustment system.

How to Fix B1649

  1. Begin by diagnosing the exact location of the short circuit using a multimeter and wiring diagram.
  2. Inspect the wiring and connectors in the recline forward circuit for any damage or corrosion, repairing or replacing as necessary.
  3. Check the seat control module for faults or malfunctions, replacing if needed.
  4. Test the seat motor and mechanism for proper operation, repairing or replacing if found to be defective.
  5. Clear the trouble code from the vehicle's memory using a diagnostic scanner.

Cost to Fix B1649

The cost of repairing a B1649 code can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair for this issue can range from $150 to $500, including parts and labor. It's important to note that labor rates at auto repair shops can vary, so it's recommended to get a quote from a trusted mechanic in your area to determine the exact cost.

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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.

Frequently Asked Questions about B1649 Code

1. What are common symptoms of OBDII code B1649 (Seat Driver Recline Forward Circuit Short To Battery)?

- Common symptoms include the driver's seat recline function not working, the seat moving uncontrollably, or a warning light on the dashboard.

2. What can cause OBDII code B1649 to be triggered?

- This code is typically triggered by a short circuit in the wiring of the driver's seat recline forward circuit that leads to the battery.

3. How can I diagnose the issue related to OBDII code B1649?

- You can use a diagnostic scanner to retrieve the trouble code and inspect the wiring harness and connectors associated with the driver's seat recline forward circuit.

4. What are the possible repair options for OBDII code B1649?

- Repair options may include repairing or replacing damaged wiring, fixing faulty connectors, or replacing the recline forward motor in the driver's seat.

5. Is it safe to continue driving with OBDII code B1649 present?

- It is not recommended to continue driving with this code active, as it can affect the functionality of the driver's seat and potentially lead to safety hazards.

6. Can OBDII code B1649 be intermittent?

- Yes, this code can sometimes be intermittent, especially if the short circuit in the wiring connection is not constant.

7. How much does it typically cost to repair OBDII code B1649?

- The cost of repair can vary depending on the extent of the damage and the specific components that need to be fixed or replaced. It is recommended to consult a professional for an accurate estimate.

8. Can I fix OBDII code B1649 myself, or do I need a mechanic?

- While some DIY enthusiasts may attempt to diagnose and repair this issue, it is recommended to seek the assistance of a qualified mechanic or technician for proper diagnosis and repair.

9. Will resetting the OBDII system clear the B1649 trouble code?

- Resetting the OBDII system may temporarily clear the code, but it is likely to return if the underlying issue causing the short circuit is not addressed.

10. Are there any preventive measures to avoid OBDII code B1649 in the future?

- Regularly inspecting the wiring harness and connectors related to the driver's seat recline function, and addressing any signs of wear or damage promptly, can help prevent the recurrence of this trouble code.

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