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B1770 Pontiac Code - Driver Seat Motor Horizontal Circuit

Quick Answer

The B1770 Pontiac code refers to an issue with the driver seat motor horizontal circuit. Common causes include Faulty driver seat motor, Damaged wiring or connectors in the seat motor circuit, Defective 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
B1770 Pontiac indicates Driver Seat Motor Horizontal Circuit.
Common causes
Common causes include Faulty driver seat motor, Damaged wiring or connectors in the seat motor circuit, Defective 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code B1770 Pontiac Description

The B1770 Pontiac code refers to an issue with the driver seat motor horizontal circuit. This means that there is a malfunction in the electrical system that controls the horizontal movement of the driver's seat. The driver's seat motor is responsible for adjusting the seat position forward, backward, and potentially side to side, so a problem with this circuit can affect the driver's comfort and ability to properly adjust their seating position.

OBDII Code B1770 Pontiac - Driver Seat Motor Horizontal Circuit
B1770 Pontiac Code - Driver Seat Motor Horizontal Circuit

Common Causes of B1770 Pontiac

  1. Faulty driver seat motor.
  2. Damaged wiring or connectors in the seat motor circuit.
  3. Defective seat control module.
  4. Blown fuse related to the seat motor circuit.
  5. Corrosion or water damage in the electrical connections.

Symptoms of B1770 Pontiac

  1. Inability to adjust the driver seat horizontally.
  2. Seat moving on its own while driving.
  3. Erratic movement of the seat when trying to adjust it.
  4. Loss of memory function for seat position settings.

How to Fix B1770 Pontiac

  1. Diagnose the issue by using a scan tool to retrieve the specific fault code and inspecting the seat motor and circuit for any visible damage.
  2. Test the driver seat motor to determine if it is functioning properly and check for any loose or damaged wiring.
  3. Replace the driver seat motor if it is found to be faulty, ensuring that the new motor is compatible with the vehicle's make and model.
  4. Repair or replace any damaged wiring or connectors in the seat motor circuit.
  5. Clear the fault code from the vehicle's computer system and test the driver seat to ensure that it is now functioning correctly.

Cost to Fix B1770 Pontiac

The typical repair costs for addressing the B1770 Pontiac code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a driver seat motor can range from $200 to $500, including parts and labor. Additional costs may be incurred if there are other components that need to be repaired or replaced, such as wiring or the seat control module.

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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 B1770 Pontiac Code

1. What does OBDII code B1770 mean for a Pontiac?

Code B1770 indicates an issue with the driver seat motor horizontal circuit, which controls the horizontal adjustment of the seat.

2. What are the symptoms of code B1770 in a Pontiac?

Common symptoms include the driver seat not moving horizontally, limited seat adjustability, or unresponsiveness when using the seat adjustment controls.

3. What causes code B1770 in a Pontiac?

Possible causes include a faulty seat motor, damaged wiring or connectors in the seat motor circuit, or a malfunctioning seat control module.

4. Can a blown fuse cause code B1770?

Yes, a blown fuse in the seat motor circuit can disrupt power to the motor, triggering code B1770.

5. How do you diagnose code B1770 in a Pontiac?

Diagnosis involves inspecting the seat motor, checking for damaged wiring or loose connections, testing the circuit for continuity, and verifying the functionality of the seat control module.

6. Can I still drive my Pontiac with code B1770 active?

Yes, the vehicle is still drivable, but the driver seat’s adjustability may be compromised, potentially affecting comfort or safety.

7. How is code B1770 fixed in a Pontiac?

Repairs may include replacing a faulty seat motor, repairing damaged wiring or connectors, or reprogramming or replacing the seat control module.

8. What tools are needed to fix code B1770?

Basic tools include a multimeter for testing electrical circuits, a scan tool for clearing codes, and potentially a socket set for accessing the seat motor.

9. Can I reset code B1770 without repairing the issue?

While the code can be cleared temporarily with a scan tool, it will likely return unless the underlying problem is resolved.

10. How much does it cost to repair code B1770 in a Pontiac?

Repair costs vary depending on the issue but may range from $50 for minor wiring repairs to $500 or more if the seat motor or module needs replacement.

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