How to Diagnose and Solve C1168 Speed Wheel Sensor RR Coherency Fault Issues

Introduction

Ever been in a situation where your car’s ABS light suddenly turns on, and you’re left wondering what could be wrong? Well, it could be a **C1168 Speed Wheel Sensor RR Coherency Fault**. But don’t worry, we’ve got you covered. This article will guide you through the process of diagnosing and solving this issue.

Understanding C1168 Speed Wheel Sensor RR Coherency Fault

Before we dive into the solution, let’s first understand what this fault is all about. The **C1168 fault code** is a diagnostic trouble code (DTC) that indicates a problem with the right rear wheel speed sensor’s coherency. This sensor is a crucial component of your car’s Anti-lock Braking System (ABS), which prevents your wheels from locking up during braking.

What Causes the C1168 Fault?

The C1168 fault is typically caused by a malfunctioning wheel speed sensor, damaged wiring, or a faulty ABS module. It’s like having a bad connection in your home’s electrical system – it disrupts the flow and causes problems.

Diagnosing the C1168 Speed Wheel Sensor RR Coherency Fault

Step 1: Visual Inspection

Start by visually inspecting the right rear wheel speed sensor and its wiring. Look for any signs of damage, corrosion, or loose connections. It’s like being a detective, looking for clues to solve a mystery.

Step 2: Use a Diagnostic Scan Tool

Next, use a diagnostic scan tool to read the fault codes from your car’s computer. This tool acts like a doctor’s stethoscope, allowing you to listen to your car’s heartbeat and identify any abnormalities.

Step 3: Test the Wheel Speed Sensor

Using a multimeter, test the right rear wheel speed sensor for resistance. If the resistance is outside the manufacturer’s specifications, the sensor is faulty and needs to be replaced.

Solving the C1168 Speed Wheel Sensor RR Coherency Fault

Step 1: Replace the Faulty Sensor

If the sensor is faulty, replace it. It’s like changing a flat tire – you wouldn’t continue driving on it, would you?

Step 2: Repair or Replace Damaged Wiring

If the wiring is damaged, repair or replace it. Think of it as fixing a broken chain – it’s essential to restore the link for the system to function correctly.

Step 3: Replace the ABS Module

If the ABS module is faulty, it will need to be replaced. This is a more complex task, akin to replacing your home’s central heating system – it’s best left to professionals.

Conclusion

Dealing with a **C1168 Speed Wheel Sensor RR Coherency Fault** can be daunting, but with the right knowledge and tools, you can diagnose and solve this issue. Remember, your car’s health is as important as your own, so don’t ignore these warning signs. Keep your car in top shape, and it will serve you well for years to come.

FAQs

1. Can I drive my car with a C1168 Speed Wheel Sensor RR Coherency Fault?

While your car may still be drivable, it’s not advisable to ignore this fault. The ABS system is crucial for your safety, especially in emergency braking situations.

2. How much does it cost to fix a C1168 Speed Wheel Sensor RR Coherency Fault?

The cost can vary depending on the cause of the fault. A sensor replacement can cost around $100-$200, while a new ABS module can cost up to $1000.

3. Can I fix a C1168 Speed Wheel Sensor RR Coherency Fault myself?

Yes, if you’re comfortable with car repairs and have the right tools, you can fix this issue yourself. However, if the ABS module is faulty, it’s best to seek professional help.