AutoCodes – Buick – B1745 Buick

B1745 Buick Code - Driver Seat Rear Up Switch Circuit

Quick Answer

The Seat Memory Control Module supplies a reference voltage to each signal circuit of the Driver Seat Adjuster Switch. Common causes include Faulty Driver Seat Adjuster Switch, Driver Seat Adjuster Switch harness is open or shorted, Driver Seat Adjuster Switch 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
B1745 Buick indicates Driver Seat Rear Up Switch Circuit.
Common causes
Common causes include Faulty Driver Seat Adjuster Switch, Driver Seat Adjuster Switch harness is open or shorted, Driver Seat Adjuster Switch 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 702
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 24, 2023
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Code B1745 Buick Description

The Seat Memory Control Module supplies a reference voltage to each signal circuit of the Driver Seat Adjuster Switch. When the power seat or lumbar switches are pressed, the appropriate signal circuit from the Seat Memory Control Module is pulled low through the switch contacts indicating the power seat command. The Seat Memory Control Module then commands the driver seat or lumbar to move in response to the switch signals. The Diagnostic Trouble Code (DTC) will be set when there is a short to ground on a switch signal circuit.
OBDII Code B1745 Buick - Driver Seat Rear Up Switch Circuit - AutoCodes.com
B1745 Buick Code - Driver Seat Rear Up Switch Circuit

What are the Possible Causes of the DTC B1745 Buick?

  • Faulty Driver Seat Adjuster Switch
  • Driver Seat Adjuster Switch harness is open or shorted
  • Driver Seat Adjuster Switch circuit poor electrical connection
  • Faulty Seat Memory Control Module

How to Fix the DTC B1745 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 B1745 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 B1745 Buick Code

1. What are the common symptoms of OBDII code B1745 in a Buick related to the driver seat rear up switch circuit?

The common symptoms include the driver seat rear up switch not functioning, the seat not adjusting properly in the rear up position, or an illuminated warning light on the dashboard.

2. What are the possible causes of OBDII code B1745 in a Buick for the driver seat rear up switch circuit?

Possible causes include a faulty seat switch, damaged wiring or connectors in the circuit, a malfunctioning seat control module, or a blown fuse related to the seat adjustment system.

3. How can I diagnose the issue with OBDII code B1745 in a Buick for the driver seat rear up switch circuit?

Diagnosing the issue involves checking the wiring and connectors for any visible damage, testing the functionality of the seat switch, inspecting the seat control module for faults, and verifying the fuse related to the seat adjustment system.

4. Are there any simple repair tips for fixing OBDII code B1745 in a Buick related to the driver seat rear up switch circuit?

Simple repair tips include checking and replacing any blown fuses, repairing damaged wiring or connectors, cleaning and testing the seat switch, and resetting the seat control module if necessary.

5. Can OBDII code B1745 in a Buick for the driver seat rear up switch circuit be fixed at home, or is professional assistance required?

Depending on the complexity of the issue, some simple repairs like checking fuses or connectors can be done at home. However, if the problem involves more intricate diagnostics or module replacements, it may be best to seek professional assistance.

6. How important is it to address OBDII code B1745 in a Buick related to the driver seat rear up switch circuit promptly?

Promptly addressing this code is important to ensure the proper functioning of the driver seat adjustment system. Ignoring the issue may lead to inconvenience while driving or potential safety concerns if the seat cannot be adjusted correctly.

7. Can resetting the vehicle's computer system help clear OBDII code B1745 in a Buick for the driver seat rear up switch circuit?

Resetting the computer system may temporarily clear the code, but if the underlying issue with the driver seat rear up switch circuit is not addressed, the code is likely to reappear. It is recommended to diagnose and repair the root cause of the problem.

8. Is it safe to drive a Buick with OBDII code B1745 related to the driver seat rear up switch circuit?

It is generally safe to drive the vehicle with this code, but it is advisable to address the issue promptly to ensure the proper functioning of the driver seat adjustment system. If the seat cannot be adjusted as needed, it may affect the driver's comfort and control of the vehicle.

9. How can I prevent OBDII code B1745 in a Buick for the driver seat rear up switch circuit from recurring?

Regularly inspecting the seat adjustment system, keeping connectors clean and secure, avoiding excessive force when operating the seat controls, and addressing any issues promptly can help prevent the recurrence of this OBDII code.

10. Are there any recalls or service bulletins related to OBDII code B1745 in Buick vehicles for the driver seat rear up switch circuit?

It is recommended to check with authorized Buick dealerships or visit the National Highway Traffic Safety Administration (NHTSA) website to inquire about any recalls or service bulletins specific to OBDII code B1745 related to the driver seat rear up switch circuit in Buick vehicles.

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