AutoCodesChevrolet – B1745 Chevrolet

B1745 Chevrolet 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 Chevrolet 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 1,026
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 Chevrolet 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 Chevrolet - Driver Seat Rear Up Switch Circuit - AutoCodes.com
B1745 Chevrolet Code - Driver Seat Rear Up Switch Circuit

What are the Possible Causes of the DTC B1745 Chevrolet?

  • 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 Chevrolet?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1745 Chevrolet 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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Information for Specific Chevrolet Models

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 Chevrolet Code

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

The common symptoms include the inability to adjust the driver seat in the upward direction and a malfunctioning seat adjustment switch.

2. What are the possible causes of OBDII code B1745 in a Chevrolet indicating an issue with the driver seat rear up switch circuit?

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

3. How can I diagnose the OBDII code B1745 in my Chevrolet related to the driver seat rear up switch circuit?

To diagnose this issue, you can use a diagnostic scanner to retrieve the trouble code, visually inspect the seat adjustment switch and wiring for any visible damage, and perform electrical tests to check for continuity and proper voltage.

4. Is it safe to continue driving my Chevrolet with OBDII code B1745 affecting the driver seat rear up switch circuit?

It is generally safe to drive the vehicle with this issue, but the driver may experience discomfort due to the inability to adjust the seat position. It is recommended to address the problem promptly.

5. Can I repair OBDII code B1745 in my Chevrolet related to the driver seat rear up switch circuit myself?

If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair this issue yourself by replacing the faulty switch, repairing damaged wiring, or addressing any other identified problems.

6. How much does it cost to repair OBDII code B1745 in a Chevrolet involving the driver seat rear up switch circuit?

The cost of repair can vary depending on the specific cause of the issue and whether you choose to address it yourself or take it to a professional. It may involve the cost of parts and labor for replacement or repair.

7. Are there any preventative measures to avoid encountering OBDII code B1745 in my Chevrolet related to the driver seat rear up switch circuit?

To prevent this issue, you can periodically inspect the driver seat controls for proper functionality, avoid putting excessive pressure on the seat adjustment switches, and address any electrical issues promptly.

8. Can a malfunctioning driver seat rear up switch circuit affect other systems in my Chevrolet?

While the primary impact of this issue is on the driver seat adjustment function, a malfunctioning switch circuit could potentially cause electrical issues or affect other components connected to the same circuit.

9. How long does it typically take to repair OBDII code B1745 in a Chevrolet involving the driver seat rear up switch circuit?

The repair time can vary depending on the complexity of the issue and the expertise of the person performing the repair. It may take anywhere from a few hours to a day to diagnose and fix the problem.

10. Will resetting the OBDII system clear the B1745 trouble code related to the driver seat rear up switch circuit in my Chevrolet?

Resetting the OBDII system may temporarily clear the trouble code, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem to prevent recurrence.

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