Engine-CodesFord – C1189 Ford

C1189 Ford Code - Brake Fluid Level Sensor Input Circuit Short To Ground

Quick Answer

The C1189 Ford diagnostic trouble code (DTC) indicates a problem with the brake fluid level sensor input circuit being shorted to ground. Common causes include Damaged or corroded wiring in the brake fluid level sensor circuit, Faulty brake fluid level sensor, Short to ground in the sensor circuit due to water intrusion or corrosion. 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 Ford indicates Brake Fluid Level Sensor Input Circuit Short To Ground.
Common causes
Common causes include Damaged or corroded wiring in the brake fluid level sensor circuit, Faulty brake fluid level sensor, Short to ground in the sensor circuit due to water intrusion or corrosion.
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.
Table of contents Created and updated by William Orellana on Sep 15, 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 Ford Description

The C1189 Ford diagnostic trouble code (DTC) indicates a problem with the brake fluid level sensor input circuit being shorted to ground. The brake fluid level sensor is a crucial component of the vehicle's braking system, as it monitors the level of brake fluid in the reservoir. When the sensor detects that the brake fluid level is low, it sends a signal to the vehicle's onboard computer to alert the driver through a warning light on the dashboard.

OBDII Code C1189 Ford - Brake Fluid Level Sensor Input Circuit Short To Ground
C1189 Ford Code - Brake Fluid Level Sensor Input Circuit Short To Ground

Common Causes of C1189 Ford

  1. Damaged or corroded wiring in the brake fluid level sensor circuit.
  2. Faulty brake fluid level sensor.
  3. Short to ground in the sensor circuit due to water intrusion or corrosion.
  4. Issues with the vehicle's onboard computer or wiring harness.
  5. Electrical faults or malfunctions in the braking system.

Symptoms of C1189 Ford

  1. Illumination of the brake warning light on the dashboard.
  2. Inaccurate or inconsistent readings of the brake fluid level.
  3. ESC system malfunctions or errors.
  4. Reduced braking performance or responsiveness.
  5. Possible ABS system faults or warnings.

How to Fix C1189 Ford

  1. Begin by conducting a visual inspection of the brake fluid level sensor wiring and connections for any signs of damage or corrosion.
  2. Test the brake fluid level sensor using a multimeter to check for proper functionality.
  3. Inspect the sensor circuit for any shorts to ground and repair or replace any damaged wiring.
  4. Clear the DTC from the vehicle's onboard computer using a diagnostic scanner.
  5. Test drive the vehicle to ensure that the issue has been resolved and that the brake fluid level sensor is functioning correctly.

Cost to Fix C1189 Ford

The typical repair costs for addressing a C1189 Ford DTC can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for a new brake fluid level sensor can range from $50 to $150, while labor costs can range from $100 to $200. Overall, the total repair cost for this issue may fall between $150 and $350, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check local rates for a more accurate estimate.

Need more information about the C1189 Ford code?

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

Need Help with the Code?

Get the C1189 Ford 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 C1189 Ford Code

1. What are the common symptoms of OBDII code C1189 in a Ford related to the brake fluid level sensor input circuit short to ground?

The common symptoms include the ABS warning light being illuminated on the dashboard, potential loss of ABS functionality, and the brake fluid level sensor not functioning properly.

2. What are the possible causes of OBDII code C1189 in a Ford indicating a brake fluid level sensor input circuit short to ground?

The code C1189 can be caused by a short to ground in the wiring harness, a faulty brake fluid level sensor, or an issue with the ABS module.

3. How can I diagnose the OBDII code C1189 in a Ford related to the brake fluid level sensor input circuit short to ground?

Diagnosing this code involves inspecting the wiring harness for any visible damage, testing the brake fluid level sensor for proper functionality, and checking the ABS module for any faults using a diagnostic tool.

4. Is it safe to drive my Ford with OBDII code C1189 indicating a brake fluid level sensor input circuit short to ground?

It is not recommended to drive the vehicle with this code present, as it may lead to potential safety issues due to the malfunction of the brake fluid level sensor and ABS system.

5. How can I repair OBDII code C1189 in a Ford that points to a brake fluid level sensor input circuit short to ground?

The repair process involves fixing the short to ground in the wiring harness, replacing the faulty brake fluid level sensor if necessary, and addressing any issues with the ABS module as needed.

6. Can a DIY enthusiast fix OBDII code C1189 indicating a brake fluid level sensor input circuit short to ground in a Ford?

While some aspects of the repair may be DIY-friendly, diagnosing and fixing electrical issues like a short to ground often require specialized tools and knowledge, so it is recommended to consult a professional mechanic.

7. How much does it typically cost to repair OBDII code C1189 related to the brake fluid level sensor input circuit short to ground in a Ford?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $500, including parts and labor.

8. Will resetting the OBDII code C1189 in a Ford resolve the brake fluid level sensor input circuit short to ground issue?

Simply resetting the code will not fix the underlying problem causing the short to ground. It is essential to diagnose the issue properly and address it to prevent the code from reoccurring.

9. What tools are needed to diagnose and repair OBDII code C1189 in a Ford indicating a brake fluid level sensor input circuit short to ground?

Tools such as a multimeter for testing electrical continuity, a diagnostic scanner for reading and clearing codes, and basic hand tools for accessing components may be required for diagnosing and repairing this issue.

10. Can a malfunctioning brake fluid level sensor cause other problems besides triggering OBDII code C1189 in a Ford?

Yes, a malfunctioning brake fluid level sensor can lead to inaccurate readings of the brake fluid level, potentially causing safety issues due to improper monitoring of the brake system's hydraulic fluid level.

Discuss the causes and fixes for C1189 Ford OBDII Code

Code C1189 Ford comments

No comments found for this page.