AutoCodes – Mercedes-Benz – P0719 Mercedes-Benz

P0719 Mercedes-Benz Code - Brake Switch Circuit Low Input

Quick Answer

The torque converter clutch (TCC) brake switch is used to indicate the status of the brake pedal 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 Mercedes-Benz 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 2,628

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 Mercedes-Benz Description

The torque converter clutch (TCC) brake switch is used to indicate the status of the brake pedal

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

What does this mean?

What are the Possible Causes of the DTC P0719 Mercedes-Benz?

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

How to Fix the DTC P0719 Mercedes-Benz?

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 Mercedes-Benz 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 P0719 Mercedes-Benz code?

Need more information on how to fix the P0719 Mercedes-Benz code? Get Access to Factory Service Manuals

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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 Mercedes-Benz Code

1. What does the OBDII code P0719 mean for a Mercedes-Benz?

P0719 indicates a "Brake Switch Circuit Low Input," meaning the vehicle's computer detects an issue with the brake light switch signal being lower than expected.

2. What are the common symptoms of code P0719 in a Mercedes-Benz?

Symptoms may include erratic transmission shifting, brake lights staying on or failing to illuminate, reduced fuel efficiency, or the inability to shift out of park.

3. What causes the P0719 code to appear in a Mercedes-Benz?

Common causes include a faulty brake light switch, damaged wiring or connectors in the brake circuit, or a malfunctioning transmission control module (TCM).

4. Can a faulty brake light switch trigger the P0719 code?

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

5. How do I diagnose the P0719 code in my Mercedes-Benz?

Start by inspecting the brake light switch, wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage signals from the switch.

6. Is it safe to drive my Mercedes-Benz with the P0719 code?

Driving with this code may be unsafe due to potential issues with brake lights or transmission performance. It's best to address the problem promptly.

7. How do I fix the P0719 code in a Mercedes-Benz?

Repairs may include replacing the brake light switch, repairing damaged wiring, or resetting the transmission control module after verifying the issue.

8. How much does it cost to fix the P0719 code on a Mercedes-Benz?

Fixing the P0719 code can cost between $100 and $300 depending on whether you need a new brake light switch or wiring repairs. Labor costs may vary.

9. Can a low battery voltage cause the P0719 code?

Yes, low battery voltage or electrical issues can sometimes affect the brake circuit, triggering this code.

10. Will clearing the P0719 code without repairs solve the problem?

Clearing the code may temporarily remove the warning, but the underlying issue will persist, and the code is likely to return. Repairs are necessary for a permanent fix.