AutoCodes – Generic – B1546

B1546 Code - Seat Direction Switch Assembly Circuit Short To Ground

Quick Answer

The Body Control Module (BCM) monitors the Seat Direction Switch Assembly. Common causes include Faulty Seat Direction Switch Assembly, Seat Direction Switch Assembly harness is open or shorted, Seat Direction Switch Assembly 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: B1546 indicates Seat Direction Switch Assembly Circuit Short To Ground.
Common causes: Common causes include Faulty Seat Direction Switch Assembly, Seat Direction Switch Assembly harness is open or shorted, Seat Direction Switch Assembly 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 7,626

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 May 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1546 Description

The Body Control Module (BCM) monitors the Seat Direction Switch Assembly. The BCM sets the OBDII code when the Seat Direction Switch Assembly is not to factory specifications.

OBDII Code B1546 - Seat Direction Switch Assembly Circuit Short To Ground - AutoCodes.com — B1546 Code - Seat Direction Switch Assembly Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B1546?

Faulty Seat Direction Switch Assembly
Seat Direction Switch Assembly harness is open or shorted
Seat Direction Switch Assembly circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1546?

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 B1546 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 B1546 code?

Need more information on how to fix the B1546 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1546 code diagnosed by a professional: Find a repair shop in your area

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 B1546 Code

What does the OBDII code B1546 indicate?

The OBDII code B1546 indicates a short circuit to ground in the seat direction switch assembly circuit, which controls the movement of the seat.

What are the common symptoms of the B1546 code?

Common symptoms include the seat not moving in the desired direction, seat adjustment controls not functioning, and potentially triggering the airbag light.

What could cause the B1546 code to trigger?

Possible causes include damaged wiring or connectors in the seat direction switch circuit, a faulty seat switch, or issues with the seat control module.

How can I diagnose the B1546 code?

To diagnose the B1546 code, visually inspect the wiring and connectors for damage, use a multimeter to check for continuity in the circuit, and test the seat direction switch for proper operation.

What are some potential repair solutions for the B1546 code?

Potential repairs may include repairing or replacing damaged wiring, replacing a faulty seat direction switch, or addressing issues with the seat control module.

Can I drive my vehicle with the B1546 code?

While you can drive your vehicle, it is advisable to address the B1546 code promptly to ensure proper seat functionality and safety.

Is B1546 a common code for all vehicle makes and models?

No, B1546 is not universally common; it typically appears in certain makes and models, often related to specific seat and control systems.

Will clearing the B1546 code fix the problem?

Clearing the code will not fix the underlying issue; the root cause must be diagnosed and repaired to prevent the code from returning.

What tools do I need to troubleshoot the B1546 code?

You will need a multimeter, OBDII scanner, and possibly basic hand tools for inspecting and repairing wiring or connectors in the seat direction switch circuit.