AutoCodes – Pontiac – P0719 Pontiac

P0719 Pontiac Code - Brake Switch Circuit Low Input

Quick Answer

The brake switch indicates brake pedal status to the Powertrain Control Module (PCM). Common causes include Faulty Brake Switch, Brake Switch harness is open or shorted, Brake 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: P0719 Pontiac indicates Brake Switch Circuit Low Input.
Common causes: Common causes include Faulty Brake Switch, Brake Switch harness is open or shorted, Brake 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 3,063

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0719 Pontiac Description

The brake switch indicates brake pedal status to the Powertrain Control Module (PCM). The brake switch is a normally-closed switch that supplies battery voltage on circuit 420 to the PCM. Applying the brake pedal opens the switch, interrupting voltage to the PCM. When the brake pedal is released, the PCM receives a constant voltage signal. If the PCM receives a zero voltage signal at the brake switch input, and the torque converter clutch (TCC) is engaged, the PCM de-energizes the TCC solenoid valve. The PCM disregards the brake switch input for TCC scheduling if there is a brake switch circuit fault.

OBDII Code P0719 Pontiac - Brake Switch Circuit Low Input - AutoCodes.com — P0719 Pontiac Code - Brake Switch Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0719 Pontiac?

Faulty Brake Switch
Brake Switch harness is open or shorted
Brake Switch circuit poor electrical connection

How to Fix the DTC P0719 Pontiac?

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 P0719 Pontiac 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 P0719 Pontiac Code

1. What does the OBDII code P0719 mean on a Pontiac?

P0719 indicates that the brake switch circuit is reporting a "low input," meaning the vehicle's computer is detecting an abnormal signal from the brake switch.

2. What are the common symptoms of code P0719 in a Pontiac?

Symptoms may include the brake lights not working, issues with the torque converter lockup, transmission shifting problems, or the cruise control not functioning.

3. What causes the P0719 code to be triggered?

Common causes include a faulty brake light switch, damaged wiring or connectors, a blown fuse, or a failure in the vehicleâ€™s PCM.

4. Can a faulty brake light switch cause code P0719?

Yes, a malfunctioning brake light switch is one of the most common causes of this code.

5. How do I diagnose code P0719 on a Pontiac?

Start by checking the brake light switch, inspecting wiring and connectors for damage, testing the circuit for continuity, and verifying the fuse is not blown.

6. Can I still drive my Pontiac with a P0719 code?

Itâ€™s possible to drive, but itâ€™s not recommended as the issue could affect brake lights, transmission function, and safety-related systems like cruise control.

7. How much does it cost to repair a P0719 code on a Pontiac?

The cost can range from $50 to $200, depending on whether the issue is a simple brake light switch replacement or more complex wiring repairs.

8. Can a blown fuse cause the P0719 code in a Pontiac?

Yes, a blown fuse in the brake light circuit can lead to this code being triggered.

9. Do I need to replace the brake light switch to fix P0719?

Not always. While the brake light switch is a common cause, you should first test it to confirm if itâ€™s faulty before replacing it.

10. Can a P0719 code affect the transmission in my Pontiac?

Yes, this code can impact transmission performance, particularly the torque converter lockup, potentially leading to poor fuel efficiency or shifting issues.