AutoCodes – Pontiac – C0139 Pontiac

C0139 Pontiac Code - Base Brake System Pressure Circuit/Sensor High

Quick Answer

The Electronic Brake Control Module (EBCM) uses an input from 2 brake fluid pressure sensors to enhance ABS braking and vehicle stability if equipped. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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: C0139 Pontiac indicates Base Brake System Pressure Circuit/Sensor High.
Common causes: Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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 1,277

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 May 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0139 Pontiac Description

The Electronic Brake Control Module (EBCM) uses an input from 2 brake fluid pressure sensors to enhance ABS braking and vehicle stability if equipped.

OBDII Code C0139 Pontiac - Base Brake System Pressure Circuit/Sensor High - AutoCodes.com — C0139 Pontiac Code - Base Brake System Pressure Circuit/Sensor High

What does this mean?

What are the Possible Causes of the DTC C0139 Pontiac?

Faulty Electronic Brake Control Module (EBCM)
Electronic Brake Control Module (EBCM) harness is open or shorted
Electronic Brake Control Module (EBCM) circuit poor electrical connection

How to Fix the DTC C0139 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 C0139 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.

Need more information about the C0139 Pontiac code?

Need more information on how to fix the C0139 Pontiac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0139 Pontiac code diagnosed by a professional: Find a repair shop in your area

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 C0139 Pontiac Code

1. What are the common symptoms of OBDII code C0139 in a Pontiac related to the Base Brake System Pressure Circuit/Sensor High?

- Common symptoms include the illumination of the "Brake Warning Light" on the dashboard, decreased brake performance, and potential ABS system malfunctions.

2. What are the possible causes of OBDII code C0139 in a Pontiac?

- The code C0139 can be triggered by issues such as a faulty brake pressure sensor, damaged wiring or connectors in the brake system, or a problem with the brake control module.

3. How can I diagnose OBDII code C0139 in my Pontiac?

- Diagnosing this code typically involves using a diagnostic scanner to read the trouble codes, checking the brake system components for any visible damage, and testing the brake pressure sensor for proper functionality.

4. Can I still drive my Pontiac with OBDII code C0139 present?

- It is not recommended to drive your vehicle with code C0139 present, as it could lead to brake system failures or malfunctions, compromising your safety on the road.

5. How can I repair OBDII code C0139 in my Pontiac?

- Repairing this code may involve replacing the faulty brake pressure sensor, repairing any damaged wiring or connectors, or addressing any issues with the brake control module as needed.

6. Is it possible to reset OBDII code C0139 in my Pontiac without fixing the underlying issue?

- While you can clear the trouble codes using a diagnostic scanner, the code will likely reappear until the root cause of the issue is resolved.

7. Are there any DIY tips for fixing OBDII code C0139 in a Pontiac?

- DIY tips include checking for loose or damaged wiring in the brake system, ensuring proper sensor connections, and consulting the vehicle's repair manual for specific troubleshooting steps.

8. How much does it typically cost to repair OBDII code C0139 in a Pontiac?

- The cost of repairing this code can vary depending on the specific issue, but it may range from $100 to $500, including parts and labor.

9. Can a mechanic easily fix OBDII code C0139 in a Pontiac?

- A qualified mechanic with experience in brake system repairs should be able to diagnose and fix OBDII code C0139 in a Pontiac efficiently and effectively.

10. How important is it to address OBDII code C0139 promptly in my Pontiac?

- Addressing code C0139 promptly is crucial to ensure the proper functioning of your vehicle's brake system and maintain safe driving conditions. Delaying repairs could lead to more severe issues down the line.