Engine-Codes.com
Engine-Codes – Generic – C1189

C1189 Code - ABS Brake Booster

Quick Answer

The C1189 code indicates a problem with the ABS brake booster system in the vehicle. Common causes include Vacuum leak in the ABS brake booster system, Malfunctioning ABS brake booster pump, Faulty ABS brake booster sensor. 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
C1189 indicates ABS Brake Booster.
Common causes
Common causes include Vacuum leak in the ABS brake booster system, Malfunctioning ABS brake booster pump, Faulty ABS brake booster sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code C1189 Description

The C1189 code indicates a problem with the ABS brake booster system in the vehicle. The ABS brake booster is a crucial component of the vehicle's braking system that helps amplify the force applied to the brake pedal, allowing for efficient and effective braking. When this system malfunctions, it can significantly impact the vehicle's braking performance, potentially leading to longer stopping distances, decreased braking power, and increased risk of accidents.

OBDII Code C1189 - ABS Brake Booster
C1189 Code - ABS Brake Booster

Common Causes of C1189

  1. Vacuum leak in the ABS brake booster system
  2. Malfunctioning ABS brake booster pump
  3. Faulty ABS brake booster sensor
  4. Damaged brake booster diaphragm
  5. Electrical issues in the ABS brake booster system

Symptoms of C1189

  1. Illuminated ABS warning light on the dashboard
  2. Increased brake pedal effort required to stop the vehicle
  3. Spongy or mushy brake pedal feel
  4. Decreased braking performance or longer stopping distances
  5. Audible hissing noise when applying the brakes

How to Fix C1189

  1. Diagnose the ABS brake booster system using a diagnostic scanner to pinpoint the exact cause of the issue.
  2. Inspect the vacuum lines for leaks and repair or replace any damaged components.
  3. Test the ABS brake booster pump and sensor for proper operation and replace if necessary.
  4. Check the brake booster diaphragm for damage and replace it if needed.
  5. Reset the ABS system and perform a road test to ensure the issue has been resolved.

Cost to Fix C1189

The cost of repairing the ABS brake booster system can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the repair cost for this type of problem can range from $200 to $800, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to obtain a quote from a trusted mechanic before proceeding with the repair.

Need more information about the C1189 code?

Need more information on how to fix the C1189 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1189 code diagnosed by a professional: Find a repair shop in your area

Code C1189 Information for Specific Makes

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 C1189 Code

1. What are the common symptoms of OBDII code C1189 related to the ABS Brake Booster?

When OBDII code C1189 is triggered, you may experience issues like a spongy brake pedal, poor brake performance, or the ABS system not functioning properly.

2. What are some common causes of OBDII code C1189 for the ABS Brake Booster?

Common causes of OBDII code C1189 include a faulty ABS brake booster pressure sensor, damaged wiring or connectors, low brake fluid levels, or a malfunctioning ABS module.

3. Can low brake fluid levels cause OBDII code C1189 to trigger?

Yes, low brake fluid levels can cause OBDII code C1189 to be triggered as the ABS brake booster system relies on proper fluid levels to operate efficiently.

4. How can I diagnose and repair OBDII code C1189 related to the ABS Brake Booster?

Diagnosing OBDII code C1189 involves checking the ABS brake booster pressure sensor, inspecting wiring and connectors, and ensuring proper brake fluid levels. Repair may involve sensor replacement, repairing wiring, or topping up brake fluid.

5. Is it safe to drive with OBDII code C1189 triggering related to the ABS Brake Booster?

It is not recommended to drive with OBDII code C1189 related to the ABS Brake Booster as it can affect brake performance and the functionality of the ABS system, potentially compromising safety.

6. Can a DIY enthusiast fix OBDII code C1189 for the ABS Brake Booster?

Depending on the cause, some DIY enthusiasts may be able to fix OBDII code C1189 by replacing the ABS brake booster pressure sensor, checking and repairing wiring, or topping up brake fluid. However, if unsure, it's best to consult a professional mechanic.

7. Will resetting the OBDII code C1189 related to the ABS Brake Booster make the issue go away?

Resetting the OBDII code C1189 may temporarily clear the warning light, but it will not fix the underlying issue causing the code to trigger. It's crucial to diagnose and repair the problem to ensure proper ABS brake booster function.

8. How much does it typically cost to repair OBDII code C1189 for the ABS Brake Booster at a mechanic?

The cost of repairing OBDII code C1189 related to the ABS Brake Booster can vary depending on the specific issue, parts needed, and labor costs. It's advisable to get a diagnosis and quote from a mechanic.

9. Are there any preventive maintenance tips to avoid triggering OBDII code C1189 for the ABS Brake Booster?

Regularly checking brake fluid levels, performing routine brake system inspections, and promptly addressing any brake-related issues can help prevent triggering OBDII code C1189 related to the ABS Brake Booster.

10. Can a malfunctioning ABS Brake Booster affect the overall braking system of a vehicle?

Yes, a malfunctioning ABS Brake Booster can affect the overall braking system of a vehicle by causing issues like decreased brake performance, a spongy brake pedal, or the ABS system not functioning correctly.

Discuss the causes and fixes for C1189 OBDII Code

Submit a New Comment

Code C1189 comments

No comments found for this page.