AutoCodes – Generic – B1770

B1770 Code - Seat Driver Backward Circuit Open

Quick Answer

The Body Control Module (BCM) monitors the Seat Driver Backward Motor. Common causes include Faulty Seat Driver Backward Motor, Seat Driver Backward Motor harness is open or shorted, Seat Driver Backward Motor 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 indicates Seat Driver Backward Circuit Open.
Common causes: Common causes include Faulty Seat Driver Backward Motor, Seat Driver Backward Motor harness is open or shorted, Seat Driver Backward Motor 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 4,686

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 Jun 26, 2019

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

The Body Control Module (BCM) monitors the Seat Driver Backward Motor. The BCM sets the OBDII code when the Seat Driver Backward Motor is not to factory specifications.

OBDII Code B1770 - Seat Driver Backward Circuit Open - AutoCodes.com — B1770 Code - Seat Driver Backward Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1770?

Faulty Seat Driver Backward Motor
Seat Driver Backward Motor harness is open or shorted
Seat Driver Backward Motor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1770?

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 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.

Need more information about the B1770 code?

Need more information on how to fix the B1770 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1770 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1770 Buick — Driver Seat Motor Horizontal Circuit
B1770 Cadillac — Driver Seat Motor Horizontal Circuit
B1770 Chevrolet — Driver Seat Motor Horizontal Circuit
B1770 GMC — Driver Seat Motor Horizontal Circuit
B1770 Nissan — Roof Status Sensor Right
B1770 Pontiac — Driver Seat Motor Horizontal Circuit
B1770 Saturn — Driver Seat Motor Horizontal Circuit

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 Code

1. What are the common symptoms of OBDII code B1770 (Seat Driver Backward Circuit Open)?

- Common symptoms include the power seat not moving backward, the seat only moving in one direction, or the seat not moving at all.

2. What are the possible causes of OBDII code B1770?

- The code B1770 can be caused by a damaged seat motor, a wiring issue in the seat's backward circuit, or a faulty seat control module.

3. How can I diagnose the OBDII code B1770?

- To diagnose the code B1770, you can perform a visual inspection of the seat wiring, check the seat motor for proper function, and use a scan tool to retrieve the specific diagnostic trouble code.

4. What are some repair tips for resolving OBDII code B1770?

- Repair tips include checking and repairing any damaged wiring, replacing the faulty seat motor, and resetting the seat control module after making repairs.

5. Can I drive my vehicle with OBDII code B1770?

- It is not recommended to drive your vehicle with the code B1770 as the power seat may not function properly, affecting your comfort and safety while driving.

6. How much does it typically cost to repair OBDII code B1770?

- The cost of repairing the code B1770 can vary depending on the specific issue, but it may range from $100 to $500 for parts and labor.

7. Can I reset OBDII code B1770 myself?

- You can attempt to reset the code B1770 using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes, but it is recommended to diagnose and repair the underlying issue first.

8. Is OBDII code B1770 a common issue in certain car models?

- OBDII code B1770 related to the seat driver backward circuit open is more common in vehicles with power adjustable seats, especially in older models with electrical components.

9. How long does it typically take to repair OBDII code B1770?

- The repair time for OBDII code B1770 can vary depending on the exact cause of the issue, but it may take a few hours to a full day to diagnose and fix the problem.

10. Can weather conditions affect the occurrence of OBDII code B1770?

- Extreme weather conditions, such as excessive heat or moisture, can potentially worsen electrical issues leading to OBDII code B1770 in the seat driver backward circuit open.