AutoCodes – Buick – B3245 Buick

B3245 Buick Code - Rear Cargo Door Lock Actuator Circuit

Quick Answer

When the Body Control Module (BCM) receives a liftgate release command, it will provide voltage to one side of the relay and ground to the other side of the relay. Common causes include Faulty Rear Cargo Door Lock Actuator, Rear Cargo Door Lock Actuator harness is open or shorted, Rear Cargo Door Lock Actuator 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: B3245 Buick indicates Rear Cargo Door Lock Actuator Circuit.
Common causes: Common causes include Faulty Rear Cargo Door Lock Actuator, Rear Cargo Door Lock Actuator harness is open or shorted, Rear Cargo Door Lock Actuator 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 488

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 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code B3245 Buick Description

When the Body Control Module (BCM) receives a liftgate release command, it will provide voltage to one side of the relay and ground to the other side of the relay. This will energize the relay causing the switch side of the relay to close and will then provide B+ voltage to the liftgate latch assembly.

OBDII Code B3245 Buick - Rear Cargo Door Lock Actuator Circuit - AutoCodes.com — B3245 Buick Code - Rear Cargo Door Lock Actuator Circuit

What does this mean?

What are the Possible Causes of the DTC B3245 Buick?

Faulty Rear Cargo Door Lock Actuator
Rear Cargo Door Lock Actuator harness is open or shorted
Rear Cargo Door Lock Actuator circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3245 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 B3245 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.