AutoCodesGeneric – B1745

B1745 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 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 5,032
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 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 - Driver Seat Rear Up Switch Circuit - AutoCodes.com
B1745 Code - Driver Seat Rear Up Switch Circuit

What are the Possible Causes of the DTC B1745?

  • 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?

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 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 Makes

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 Code

1. What are the common symptoms of OBDII code B1745 (Driver Seat Rear Up Switch Circuit)?

The common symptoms of this code may include non-functional rear up seat adjustment, a seat stuck in one position, or an inoperative seat motor.

2. What can cause OBDII code B1745 to trigger?

The code B1745 is typically triggered by a malfunction in the driver seat rear up switch circuit, which may be caused by wiring issues, a faulty switch, or a problem with the seat control module.

3. How can I diagnose the root cause of OBDII code B1745?

To diagnose the issue, you can start by inspecting the wiring harness connected to the rear up switch, testing the switch for continuity, and checking the seat control module for any faults or loose connections.

4. Are there any simple repair tips for fixing OBDII code B1745?

You can try resetting the error code by disconnecting the car battery for a few minutes and then reconnecting it. If the issue persists, you may need to repair or replace the faulty rear up switch or address any wiring problems.

5. Can OBDII code B1745 be fixed without professional help?

Depending on your level of automotive expertise, you may be able to fix the issue yourself by following repair guides or tutorials specific to your vehicle. However, if you are unsure or uncomfortable with electrical repairs, it is recommended to seek professional assistance.

6. Is it safe to continue driving with OBDII code B1745 present?

While the code B1745 may not directly affect the drivability of your vehicle, it is important to address the underlying issue promptly to ensure the proper functioning of your driver seat adjustment system.

7. How much does it typically cost to repair OBDII code B1745?

The cost of repairing OBDII code B1745 can vary depending on the cause of the issue, the extent of the repair needed, and whether you choose to do the repair yourself or seek professional help. It is advisable to obtain quotes from multiple sources to compare costs.

8. Will OBDII code B1745 cause my vehicle to fail an emissions test?

The code B1745 is related to the driver seat rear up switch circuit and should not directly impact the emissions performance of your vehicle. However, it is essential to address any OBDII codes present before undergoing an emissions test to ensure the overall health of your vehicle.

9. Can weather conditions or extreme temperatures trigger OBDII code B1745?

While weather conditions or extreme temperatures may not directly cause the code B1745 to trigger, they can sometimes exacerbate underlying electrical issues in the seat control system, leading to the malfunction of the rear up switch circuit.

10. Is there a way to prevent OBDII code B1745 from recurring in the future?

Regularly inspecting and maintaining the wiring connections, switches, and control modules related to the driver seat adjustment system can help prevent the recurrence of OBDII code B1745. Additionally, addressing any issues promptly and following recommended maintenance schedules can help keep the system in good working condition.

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