AutoCodes – GMC – B1745 2014 GMC Sierra

B1745 2014 GMC Sierra 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 2014 GMC Sierra 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.

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Code Popularity 203

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Apr 24, 2023

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B1745 2014 GMC Sierra 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 2014 GMC Sierra - Driver Seat Rear Up Switch Circuit - AutoCodes.com — B1745 2014 GMC Sierra Code - Driver Seat Rear Up Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B1745 2014 GMC Sierra?

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 2014 GMC Sierra?

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 does this mean?

Code Tech Notes

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1745 2014 GMC Sierra 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 2014 GMC Sierra Code

1. What does the OBDII code B1745 mean on a 2014 GMC Sierra?

The B1745 code indicates an issue with the Driver Seat Rear Up Switch Circuit, which controls the rear upward movement of the driverâ€™s seat.

2. What are the common symptoms of code B1745 on a 2014 GMC Sierra?

Symptoms may include the driver seat not moving up or down properly, unresponsiveness of the seat adjustment switch, or unusual noises when attempting to adjust the seat.

3. What causes the B1745 code to appear?

Possible causes include a faulty seat adjustment switch, damaged wiring or connectors in the circuit, a malfunctioning seat motor, or a blown fuse.

4. How do I diagnose the B1745 code on my GMC Sierra?

Start by inspecting the seat adjustment switch, wiring, and connectors for damage or corrosion. Use a multimeter to test the circuit for proper voltage and continuity.

5. Can I drive my 2014 GMC Sierra with the B1745 code active?

Yes, you can still drive the vehicle, but the driver's seat may not adjust properly, which could affect comfort or safety depending on the seating position.

6. How do I fix the B1745 code on my 2014 GMC Sierra?

Repairs may include replacing the seat adjustment switch, repairing damaged wiring or connectors, or replacing the seat motor if itâ€™s defective.

7. How much does it cost to repair the B1745 code on a GMC Sierra?

Repair costs vary depending on the issue, but replacing a seat adjustment switch typically costs $100-$300, including parts and labor. Wiring repairs may cost less if minor.

8. Can a blown fuse cause the B1745 code on a 2014 GMC Sierra?

Yes, a blown fuse in the seat adjustment circuit can cause this code by interrupting power to the seat adjustment system.

9. Do I need to recalibrate the seat after fixing the B1745 code?

In most cases, no recalibration is needed, but you should test the seat movement to ensure all functions are restored.

10. Is the B1745 code a common problem in the 2014 GMC Sierra?

Itâ€™s not a very common issue, but wear and tear on the seat switch or wiring can lead to this code over time. Regular inspections can help prevent it.