AutoCodes – Buick – B396A Buick

B396A Buick Code - Liftgate Motor Power Open/Close Malfunction

Quick Answer

The liftgate motor is a bi-directional motor and open or close operation is the result of the direction of the motor rotation. Common causes include Faulty Liftgate Motor, Liftgate Motor harness is open or shorted, Liftgate Motor 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: B396A Buick indicates Liftgate Motor Power Open/Close Malfunction.
Common causes: Common causes include Faulty Liftgate Motor, Liftgate Motor harness is open or shorted, Liftgate Motor 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 1,119

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 Mar 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B396A Buick Description

The liftgate motor is a bi-directional motor and open or close operation is the result of the direction of the motor rotation. The Liftgate Control Module controls the liftgate motor through the control circuits by supplying power and ground in the appropriate polarity. The motor control circuits are monitored by the liftgate control module prior to activation for a high or low condition and during motor operation for any irregular current flow conditions. The Diagnostic Trouble Code (DTC) sets when the Liftgate Control Module detects a short to battery in the Liftgate Motor control circuits.

OBDII Code B396A Buick - Liftgate Motor Power Open/Close Malfunction - AutoCodes.com — B396A Buick Code - Liftgate Motor Power Open/Close Malfunction

What does this mean?

What are the Possible Causes of the DTC B396A Buick?

Faulty Liftgate Motor
Liftgate Motor harness is open or shorted
Liftgate Motor circuit poor electrical connection
Faulty Liftgate Control Module

How to Fix the DTC B396A 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 B396A 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.

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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 B396A Buick Code

1. What are the common symptoms of OBDII code B396A Buick (Liftgate Motor Power Open/Close Malfunction)?

- The common symptoms include the liftgate not opening or closing properly, strange noises coming from the liftgate motor, and a malfunction indicator light (MIL) on the dashboard.

2. What are the possible causes of OBDII code B396A Buick?

- Possible causes may include a faulty liftgate motor, damaged wiring or connectors related to the liftgate motor, or a malfunctioning liftgate control module.

3. How can I diagnose the Liftgate Motor Power Open/Close Malfunction code B396A in my Buick?

- Diagnose by checking the liftgate motor for proper operation, inspecting the wiring and connectors for any damage, and using an OBDII scanner to retrieve the specific fault codes.

4. Can I drive my Buick with the B396A code present?

- It is not recommended to drive your Buick with the B396A code present as it may lead to further damage to the liftgate system or compromise vehicle safety.

5. How can I repair OBDII code B396A Buick at home?

- You can attempt to repair the code at home by checking and repairing any damaged wiring or connectors, resetting the liftgate control module, or replacing the liftgate motor if necessary.

6. Is it safe to manually open or close the liftgate if the B396A code is triggered?

- It is generally safe to manually open or close the liftgate if the B396A code is triggered, but it is advisable to do so with caution and avoid forcing the mechanism.

7. Can a DIYer fix the Liftgate Motor Power Open/Close Malfunction code B396A?

- A DIYer may be able to fix the B396A code depending on their experience and comfort level with automotive repairs. However, if unsure, it's recommended to seek professional help.

8. How much does it typically cost to repair OBDII code B396A Buick at a mechanic or dealership?

- The cost of repairing the B396A code can vary depending on the specific issue, but it may range from $200 to $500 at a mechanic or dealership, including parts and labor.

9. How long does it take to repair the Liftgate Motor Power Open/Close Malfunction code B396A?

- The repair time for the B396A code can vary depending on the exact cause and complexity of the issue. It may take a few hours to a full day to diagnose and fix the problem.

10. Are there any recalls or service bulletins related to OBDII code B396A Buick?

- It's recommended to check with your Buick dealership or visit the National Highway Traffic Safety Administration (NHTSA) website for any recalls or service bulletins related to the B396A code.