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B1805 Pontiac Code - Driver Seat Motor Side Bolster Circuit

Quick Answer

The B1805 diagnostic trouble code (DTC) for Pontiac vehicles specifically refers to an issue with the driver seat motor side bolster circuit. Common causes include Damaged wiring or connectors in the driver seat motor side bolster circuit, Faulty seat control module, Corrosion or moisture intrusion in the circuit. 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
B1805 Pontiac indicates Driver Seat Motor Side Bolster Circuit.
Common causes
Common causes include Damaged wiring or connectors in the driver seat motor side bolster circuit, Faulty seat control module, Corrosion or moisture intrusion in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code B1805 Pontiac Description

The B1805 diagnostic trouble code (DTC) for Pontiac vehicles specifically refers to an issue with the driver seat motor side bolster circuit. This code indicates a malfunction in the circuit that controls the side bolster adjustment feature of the driver's seat. The side bolster adjustment allows the driver to customize the level of lateral support provided by the seat, enhancing comfort and stability during driving.

OBDII Code B1805 Pontiac - Driver Seat Motor Side Bolster Circuit
B1805 Pontiac Code - Driver Seat Motor Side Bolster Circuit

Common Causes of B1805 Pontiac

  1. Damaged wiring or connectors in the driver seat motor side bolster circuit.
  2. Faulty seat control module.
  3. Corrosion or moisture intrusion in the circuit.
  4. Mechanical obstruction preventing the side bolster adjustment.

Symptoms of B1805 Pontiac

  1. Inability to adjust the side bolster of the driver's seat.
  2. Side bolster adjustment moving in the wrong direction or getting stuck.
  3. Malfunction indicator light (MIL) illuminated on the dashboard.
  4. Disabling of side airbags due to seat position sensor error.

How to Fix B1805 Pontiac

  1. Begin by conducting a thorough visual inspection of the wiring and connectors in the driver seat motor side bolster circuit to identify any visible damage or corrosion.
  2. Use a multimeter to test the continuity and voltage of the circuit components, including the seat control module.
  3. If any damaged wiring or connectors are found, repair or replace them as needed.
  4. Test the functionality of the side bolster adjustment after repairing the circuit to ensure proper operation.
  5. Clear the DTC from the vehicle's computer using a diagnostic scan tool to reset the system and verify that the issue has been resolved.

Cost to Fix B1805 Pontiac

The typical repair costs for addressing the B1805 code in a Pontiac vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair could range from $50 to $200, while labor costs may add another $100 to $300 to the total bill. Keep in mind that these estimates are rough averages, and actual costs can differ based on factors such as location, vehicle model, and the shop's labor rates. It's advisable to consult with a trusted mechanic or dealership for a more accurate cost estimate tailored to your situation.

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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 B1805 Pontiac Code

1. What are the common symptoms of OBDII code B1805 in a Pontiac related to the driver seat motor side bolster circuit?

- Common symptoms include malfunctioning seat adjustments, inability to control the side bolster movement, or the seat moving in unexpected ways.

2. What are the potential causes of OBDII code B1805 in a Pontiac?

- The code B1805 typically indicates a fault in the driver seat motor side bolster circuit, which could be caused by damaged wiring, a faulty motor, or a problem with the control module.

3. How can I diagnose the issue causing OBDII code B1805 in my Pontiac?

- To diagnose the problem, start by inspecting the wiring harness for any visible damage, test the motor for functionality, and use a diagnostic tool to check for specific electrical faults.

4. Can I repair the driver seat motor side bolster circuit issue myself?

- While some DIY enthusiasts may attempt to repair the issue themselves, it is recommended to consult with a professional mechanic or technician for proper diagnosis and repair to ensure safety and effectiveness.

5. Is it safe to drive my Pontiac with OBDII code B1805 present?

- It is generally safe to drive with this code, but it is advisable to address the issue promptly to avoid potential discomfort or safety concerns associated with the driver seat not functioning correctly.

6. How much does it typically cost to repair OBDII code B1805 in a Pontiac?

- The cost of repairing OBDII code B1805 can vary depending on the specific underlying cause, but it may involve replacing wiring, the motor, or the control module, which can range from a few hundred to over a thousand dollars.

7. Can resetting the OBDII code B1805 in my Pontiac resolve the issue temporarily?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the fault in the driver seat motor side bolster circuit.

8. Are there any preventive measures to avoid OBDII code B1805 in the future?

- Regularly inspecting and maintaining the driver seat components, avoiding excessive force when adjusting the seat, and addressing any electrical issues promptly can help prevent OBDII code B1805 from occurring.

9. Will OBDII code B1805 affect the overall performance of my Pontiac?

- OBDII code B1805 specifically relates to the driver seat motor side bolster circuit and should not significantly impact the overall performance of the vehicle aside from potential comfort and convenience issues related to the seat adjustment.

10. How long does it typically take to repair OBDII code B1805 in a Pontiac?

- The repair time for OBDII code B1805 can vary depending on the complexity of the issue and the availability of parts. It may take a few hours to a full day to diagnose and repair the problem effectively.

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