AutoCodes – Buick – B2732 Buick

B2732 Buick Code - Liftgate Release Switch Circuit Failure

Quick Answer

The Liftgate Release Switch provides a ground input to the Body Control Module (BCM) when the switch is closed. Common causes include Faulty Liftgate Release Switch, Liftgate Release Switch harness is open or shorted, Liftgate Release 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: B2732 Buick indicates Liftgate Release Switch Circuit Failure.
Common causes: Common causes include Faulty Liftgate Release Switch, Liftgate Release Switch harness is open or shorted, Liftgate Release 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 664

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 Jan 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2732 Buick Description

The Liftgate Release Switch provides a ground input to the Body Control Module (BCM) when the switch is closed. This input allows the BCM to detect when a key release switch request is received. The Diagnostic Trouble Code (DTC) sets when the BCM no longer detects a fault on the signal circuit for the liftgate release switch.

OBDII Code B2732 Buick - Liftgate Release Switch Circuit Failure - AutoCodes.com — B2732 Buick Code - Liftgate Release Switch Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B2732 Buick?

Faulty Liftgate Release Switch
Liftgate Release Switch harness is open or shorted
Liftgate Release Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2732 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 B2732 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.

Need more information about the B2732 Buick code?

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Need Help with the Code?

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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 B2732 Buick Code

1. What does the OBDII code B2732 mean on a Buick?

The B2732 code indicates a "Liftgate Release Switch Circuit Failure," meaning there is an issue in the electrical circuit controlling the liftgate release switch.

2. What are the common symptoms of a B2732 error code?

Symptoms may include the liftgate not opening, intermittent operation of the liftgate release, or an inoperative liftgate release switch.

3. What causes the B2732 code to appear?

Common causes include a faulty liftgate release switch, damaged wiring or connectors in the circuit, or issues with the body control module (BCM).

4. Can a blown fuse cause the B2732 code?

Yes, a blown fuse in the circuit powering the liftgate release system can trigger the B2732 code.

5. How do I diagnose a B2732 code on a Buick?

Start by visually inspecting the liftgate release switch, wiring, and connectors for damage. Use a multimeter to test for continuity and voltage in the circuit and check the BCM for faults.

6. Is the liftgate release switch always to blame for the B2732 code?

No, while a faulty switch is a common cause, the issue could also stem from damaged wiring, a loose connector, or a problem with the BCM.

7. Can I still drive my Buick with a B2732 code?

Yes, the B2732 code does not affect drivability, but it may prevent you from using the liftgate release function.

8. How much does it cost to fix the B2732 code on a Buick?

Repair costs depend on the issue but typically range from $50 to $300, depending on whether the switch, wiring, or BCM needs repair or replacement.

9. Can I clear the B2732 code without fixing the problem?

Clearing the code with a scan tool is possible, but it will likely return if the underlying issue is not resolved.

10. Should I take my Buick to a professional for a B2732 code?

If youâ€™re unfamiliar with diagnosing electrical circuits, itâ€™s recommended to consult a professional technician to accurately identify and repair the issue.