AutoCodes – Buick – B1770 Buick

B1770 Buick Code - Driver Seat Motor Horizontal Circuit

Quick Answer

The seat adjuster motors are controlled by the Driver Seat Module (DSM) through the adjuster motor control circuits. Common causes include Faulty Driver Seat Motor Horizontal, Driver Seat Motor Horizontal harness is open or shorted, Driver Seat Motor Horizontal 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: B1770 Buick indicates Driver Seat Motor Horizontal Circuit.
Common causes: Common causes include Faulty Driver Seat Motor Horizontal, Driver Seat Motor Horizontal harness is open or shorted, Driver Seat Motor Horizontal 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 686

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 Jul 31, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1770 Buick Description

The seat adjuster motors are controlled by the Driver Seat Module (DSM) through the adjuster motor control circuits. In an inactive state both of the motor control circuits are grounded within the DSM. In an active state the DSM switches the appropriate motor control circuit to battery positive voltage. The direction of the adjuster motor rotation is determined by which of the motor control circuits is switched to battery positive voltage while the other remains grounded. During adjuster motor operation the DSM also monitors the current flow through the motor control circuits.

OBDII Code B1770 Buick - Driver Seat Motor Horizontal Circuit - AutoCodes.com — B1770 Buick Code - Driver Seat Motor Horizontal Circuit

What does this mean?

What are the Possible Causes of the DTC B1770 Buick?

Faulty Driver Seat Motor Horizontal
Driver Seat Motor Horizontal harness is open or shorted
Driver Seat Motor Horizontal circuit poor electrical connection
Faulty Driver Seat Module (DSM)

How to Fix the DTC B1770 Buick?

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 B1770 Buick 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.

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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 Buick Code

1. What are the common symptoms of OBDII code B1770 in a Buick related to the driver seat motor horizontal circuit?

- Common symptoms include the inability to adjust the driver seat horizontally, erratic movement of the seat, or complete loss of movement.

2. What are the possible causes of OBDII code B1770 in a Buick indicating a problem with the driver seat motor horizontal circuit?

- The code B1770 in a Buick may be triggered by a faulty seat motor, damaged wiring or connectors, or a malfunction in the seat control module.

3. How can I diagnose the issue causing OBDII code B1770 in my Buick's driver seat motor horizontal circuit?

- To diagnose the problem, you can perform a visual inspection of the seat motor and wiring, check for loose connections, use a multimeter to test for continuity, and scan the vehicle for additional trouble codes.

4. Can I repair OBDII code B1770 related to the driver seat motor horizontal circuit in my Buick at home?

- Depending on the specific cause, you may be able to repair the issue at home by replacing the faulty seat motor, repairing damaged wiring, or addressing loose connections. However, complex issues may require professional assistance.

5. Is it safe to drive my Buick with OBDII code B1770 indicating a problem with the driver seat motor horizontal circuit?

- It is generally safe to drive the vehicle with this code, but you may experience inconvenience due to the inability to adjust the driver seat. It's recommended to address the issue promptly to avoid discomfort.

6. How much does it typically cost to repair OBDII code B1770 in a Buick related to the driver seat motor horizontal circuit?

- The cost of repairs can vary depending on the specific cause of the issue. Replacing a faulty seat motor or repairing wiring may cost anywhere from $100 to $500, including parts and labor.

7. Can resetting the OBDII system clear the B1770 code related to the driver seat motor horizontal circuit in a Buick?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.

8. Are there any preventive maintenance tips to avoid encountering OBDII code B1770 in a Buick due to the driver seat motor horizontal circuit?

- Regularly inspecting the driver seat controls, avoiding putting excessive pressure on the seat adjustment buttons, and addressing any unusual movements or sounds promptly can help prevent issues causing this code.

9. Can a DIY enthusiast with basic automotive knowledge troubleshoot OBDII code B1770 in a Buick related to the driver seat motor horizontal circuit?

- Yes, with basic automotive knowledge and the right tools, a DIY enthusiast can troubleshoot common causes of this code such as checking wiring connections, testing the seat motor, and inspecting for visible damage.

10. How long does it typically take to repair OBDII code B1770 indicating a problem with the driver seat motor horizontal circuit in a Buick?

- The repair time can vary based on the cause of the issue and the expertise of the technician. Simple fixes like reconnecting a loose wire may take an hour or less, while replacing a faulty seat motor could take several hours.