Engine-CodesPontiac – B1785 Pontiac

B1785 Pontiac Code - Driver Seat Motor Recline Circuit

Quick Answer

The B1785 diagnostic trouble code (DTC) for Pontiac vehicles indicates a problem with the driver seat motor recline circuit. Common causes include Faulty driver seat motor, Damaged wiring or connectors in the recline circuit, Malfunctioning 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
B1785 Pontiac indicates Driver Seat Motor Recline Circuit.
Common causes
Common causes include Faulty driver seat motor, Damaged wiring or connectors in the recline circuit, Malfunctioning 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 14, 2024
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Code B1785 Pontiac Description

The B1785 diagnostic trouble code (DTC) for Pontiac vehicles indicates a problem with the driver seat motor recline circuit. This code is triggered when the powertrain control module (PCM) detects an issue with the circuit responsible for controlling the recline function of the driver's seat. The driver seat motor recline circuit is a crucial component that allows the driver to adjust the seat's recline position for comfort and driving ergonomics.

OBDII Code B1785 Pontiac - Driver Seat Motor Recline Circuit
B1785 Pontiac Code - Driver Seat Motor Recline Circuit

Common Causes of B1785 Pontiac

  1. Faulty driver seat motor.
  2. Damaged wiring or connectors in the recline circuit.
  3. Malfunctioning seat control module.
  4. Defective seat adjustment switch.
  5. Electrical issues such as blown fuses or relays.

Symptoms of B1785 Pontiac

  1. Inability to adjust the driver's seat recline position.
  2. Seat recline function operates intermittently.
  3. Unusual noises coming from the driver's seat when attempting to adjust the recline position.
  4. Seat recline movement is slow or jerky.

How to Fix B1785 Pontiac

  1. Begin by conducting a thorough inspection of the driver seat motor recline circuit, checking for any visible damage to wiring or connectors.
  2. Test the driver seat motor and control module for proper functionality using a multimeter or scan tool.
  3. Replace any faulty components such as the seat motor, control module, or wiring as needed.
  4. Clear the DTC from the PCM memory using a scan tool and perform a test drive to ensure the issue has been resolved.
  5. Calibrate the driver seat motor and control module as per manufacturer specifications to ensure proper operation.

Cost to Fix B1785 Pontiac

The typical repair costs for addressing a B1785 code related to the driver seat motor recline circuit can vary depending on the specific cause of the issue. In general, the cost of parts such as a new seat motor, control module, or wiring harness can range from $100 to $500. Labor costs for diagnosis and repair at an auto repair shop can add an additional $100 to $300 to the total bill. It's important to note that labor rates can vary based on location, shop rates, and the complexity of the repair. It's advisable to consult with a trusted mechanic or repair shop for a more accurate cost estimate based on your vehicle's make and model.

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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 B1785 Pontiac Code

1. What are the common symptoms of OBDII code B1785 in a Pontiac related to the driver seat motor recline circuit?

- Common symptoms include the inability to adjust the driver seat recline angle using the motorized controls.

2. What are some possible causes of OBDII code B1785 in a Pontiac related to the driver seat motor recline circuit?

- Potential causes may include a faulty driver seat motor, damaged wiring or connectors in the recline circuit, or a malfunctioning seat control module.

3. How can I diagnose OBDII code B1785 in a Pontiac related to the driver seat motor recline circuit?

- You can diagnose the issue by checking the seat motor's functionality, inspecting the wiring and connectors for damage, and using an OBDII scanner to read the trouble code.

4. Can I repair OBDII code B1785 in a Pontiac related to the driver seat motor recline circuit myself?

- Depending on your experience and tools, you may be able to repair the issue by replacing the faulty seat motor, repairing damaged wiring, or resetting the seat control module.

5. Are there any tips for repairing OBDII code B1785 in a Pontiac related to the driver seat motor recline circuit?

- It's recommended to start by checking the fuse related to the seat motor circuit, inspecting for visible damage in the wiring, and ensuring all connections are secure before replacing any components.

6. Is it safe to drive my Pontiac with OBDII code B1785 related to the driver seat motor recline circuit?

- While the code may not directly affect the drivability of the vehicle, it's important to address the issue promptly to ensure the driver seat functions correctly for comfort and safety.

7. Will resetting the OBDII code B1785 related to the driver seat motor recline circuit make it go away permanently?

- Resetting the code may temporarily clear the error, but if the underlying issue causing the code is not fixed, it is likely to reappear after some time.

8. How do I reset the OBDII code B1785 related to the driver seat motor recline circuit in my Pontiac?

- You can reset the code using an OBDII scanner tool by clearing the diagnostic trouble codes (DTCs) stored in the vehicle's computer system.

9. Can extreme temperatures or humidity affect the driver seat motor recline circuit in a Pontiac and trigger OBDII code B1785?

- Yes, extreme temperatures or humidity can potentially cause electrical components to malfunction, leading to issues in the driver seat motor recline circuit and triggering the OBDII code B1785.

10. Is it necessary to visit a mechanic for OBDII code B1785 related to the driver seat motor recline circuit, or can I troubleshoot and repair it myself?

- Depending on your automotive repair skills and access to tools, you can attempt to troubleshoot and repair the issue yourself. However, if you are unsure or unable to resolve it, seeking professional help from a mechanic is advisable.

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