AutoCodes – Buick – B2719 Buick

B2719 Buick Code - Trunk Tamper Switch Fault

Quick Answer

A test is run to determine if the trunk tamper switch is active when Platform Zone Module (PZM) is in an off, idle, ready to arm, arm initiated or arm delay state. Common causes include Faulty Trunk Tamper Switch, Trunk Tamper Switch harness is open or shorted, Trunk Tamper 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: B2719 Buick indicates Trunk Tamper Switch Fault.
Common causes: Common causes include Faulty Trunk Tamper Switch, Trunk Tamper Switch harness is open or shorted, Trunk Tamper 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 579

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 B2719 Buick Description

A test is run to determine if the trunk tamper switch is active when Platform Zone Module (PZM) is in an off, idle, ready to arm, arm initiated or arm delay state. DTC B2719 will set when PZM determines the trunk tamper switch has been active for 2 seconds. When DTC B2719 is set, UTD will still arm, disregarding input from the trunk tamper switch. DTC B2719 will clear when the trunk tamper switch is not active on the next ignition switch transition to RUN or CRANK position.

OBDII Code B2719 Buick - Trunk Tamper Switch Fault - AutoCodes.com — B2719 Buick Code - Trunk Tamper Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2719 Buick?

Faulty Trunk Tamper Switch
Trunk Tamper Switch harness is open or shorted
Trunk Tamper Switch circuit poor electrical connection

How to Fix the DTC B2719 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 B2719 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 B2719 Buick 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 B2719 Buick Code

1. What does the OBDII code B2719 mean on a Buick?

The code B2719 indicates a Trunk Tamper Switch Fault, which means the system has detected an issue with the switch that monitors the trunk for tampering or unauthorized access.

2. What are the common symptoms of a B2719 code in a Buick?

Symptoms may include a trunk warning light on the dashboard, security system alerts, or issues with the trunk not locking or unlocking properly.

3. What causes the B2719 Trunk Tamper Switch Fault code?

Common causes include a faulty trunk tamper switch, damaged wiring or connectors, or water intrusion in the trunk area affecting the switch or its circuit.

4. How can I fix the B2719 code on my Buick?

Inspect the trunk tamper switch for damage, check the wiring and connectors for corrosion or breaks, and replace the switch if it is faulty.

5. Can a B2719 code trigger the security system in a Buick?

Yes, a malfunctioning trunk tamper switch may cause the vehicle's security system to activate or display a warning.

6. Is it safe to drive with a B2719 code present?

While the vehicle may still be drivable, the security system may not function properly, and the trunk locking mechanism could be compromised.

7. How do I test the trunk tamper switch for a B2719 code?

Use a multimeter to check for continuity in the switch when it is pressed and released. If continuity is not present, the switch is likely faulty.

8. Can extreme weather cause a B2719 code in a Buick?

Yes, extreme weather, such as heavy rain or snow, can cause water intrusion that may damage the switch or its wiring.

9. Will disconnecting the battery clear the B2719 code?

Disconnecting the battery may temporarily clear the code, but the issue will return if the underlying problem with the trunk tamper switch is not resolved.

10. How much does it typically cost to repair a B2719 code in a Buick?

Repair costs vary but typically range from $50 to $150 for a replacement switch, plus labor if performed by a mechanic.