Did you know that about 30% of ABS problems in cars are because of bad sensors, like the ones causing the C1155 code?
If you see this error, it’s important to fix it quickly to make sure your car’s safety systems are working right.
Start by using an OBD-II scanner to check the error code, but don’t stop there. You also need to look at the ABS speed sensor, wiring, and connections for any damage.
Keep reading to learn the steps and tips to fix this error quickly and keep your car running smoothly.
Quick Navigation
Key Takeaways
- Use a code scanner to check and confirm the C1155 error.
- Look at the ABS speed sensor for dirt or damage and clean it if needed.
- Check and fix any damaged or corroded wires and connectors.
- If the ABS speed sensor is broken, replace it.
What Is the C1155 Code?
The C1155 code means there’s a problem with the ABS speed sensor circuit. This sensor helps prevent your wheels from locking up when you brake hard. If there’s an issue with it, your ABS warning light might turn on, and your speedometer could stop working right.
To figure out what’s wrong, use an OBD-II scanner. Look at the ABS sensor to see if it’s damaged or dirty. Check the wiring to make sure it’s connected and not corroded.
Make sure the ABS control module is talking to the sensor correctly. Fixing these issues quickly will help keep your car safe and avoid more problems.
Importance of Addressing the C1155 Code
Addressing the C1155 code quickly is crucial to avoid safety risks and ensure your car’s ABS system works properly. Fixing this issue promptly is very important because ignoring it can lead to serious problems like poor braking and a higher chance of accidents. Here’s why you should act fast:
| Reason | Consequences of Neglect |
|---|---|
| Safety | Higher risk of accidents |
| Braking Performance | Poor braking efficiency |
| Vehicle Control | Possible loss of control |
| System Malfunction | ABS system failure |
Use an OBD-II scanner to diagnose the problem and check the ABS parts carefully. Fixing the issue early keeps your car safe and running well, and it helps you avoid expensive future repairs. Remember, ignoring the C1155 code can turn small problems into major safety hazards.
Common Symptoms of C1155 Code
If you’re dealing with a C1155 code, you’ll likely see the ABS warning light come on, and your speedometer might act up. You could also notice that your brakes don’t feel as consistent, since the ABS system needs the sensors to work properly.
Check the ABS speed sensor for any visible damage or dirt that could be causing issues. It’s also important to make sure all the wiring is in good shape; frayed wires or loose connections can set off this error code.
Take a close look at the wiring harness and connectors for any signs of rust or wear and tear. Problems with the speedometer can often be traced back to bad sensor data.
Fixing these issues quickly through a thorough check-up will help keep your ABS system working right, ensuring your vehicle stays safe and under control.
Main Causes of C1155 Code
Main Causes of C1155 Code
Several main factors can cause the C1155 code, mostly related to the ABS speed sensor and its components. Faulty speed sensors often fail to read the wheel speed correctly, leading to incorrect ABS signals. Wiring problems, such as damaged harnesses or connectors, can break the sensor’s electrical circuit, causing it to fail intermittently or completely.
| Cause | Description |
|---|---|
| Faulty Speed Sensor | Incorrect wheel speed detection |
| Damaged Wiring | Short circuits, open circuits, weak signals |
| Malfunctioning ABS Module | Can’t process sensor data |
| Corrosion or Dirt | Electrical interference, signal loss |
Corrosion or dirt buildup at connectors can also prevent the sensor from working properly. A malfunctioning ABS control module might not be able to process speed sensor data, leading to the C1155 code. Identifying and fixing these problems is crucial for keeping the ABS system working correctly.
Impacted Car Models
The C1155 code often shows up in cars like the Ford Focus, Ford Escape, and Mazda Tribute because they share similar ABS parts. These cars usually have the same wiring, ABS sensors, and control modules, which means they can have the same ABS problems.
If you’re dealing with the C1155 code in your Ford Focus or Mazda Tribute, start by checking the ABS speed sensors and the related wiring. Look for any signs of damage, rust, or loose connections.
Use an OBD-II scanner to get the exact error code and any other related codes. By focusing on these common trouble spots, you can make your diagnosis easier and fix the C1155 code, helping to keep your ABS system and vehicle safe.
Initial Diagnostic Steps
To start diagnosing the C1155 code, first check the ABS system fuse to ensure it hasn’t blown.
If the fuse is fine, move on to inspecting the ABS speed sensor for any obvious damage or wear.
Use an OBD-II scanner to read the error code and any related codes to better understand the issue.
Look at the wiring and connectors connected to the ABS system for any signs of damage, corrosion, or loose connections.
Make sure the battery voltage is stable because fluctuations can cause ABS problems.
These steps will help you find the root cause of the C1155 code before diving into more detailed diagnostics.
Detailed Diagnostic Procedures
After you’ve done the initial checks, use a multimeter to measure the resistance of the ABS speed sensor.
First, disconnect the sensor, then place the multimeter leads on the sensor terminals. Check that the resistance matches what the manufacturer says it should be. If it’s not within this range, you’ll need to replace the sensor.
Next, check the wiring. Connect the multimeter leads to each end of the sensor’s wiring harness to make sure there’s a continuous connection.
Look for any signs of short circuits or breaks in the wire. Also, check the connectors for any corrosion or damage and make sure all connections are clean and secure.
Accurate diagnostics depend on thorough testing and reliable data.
Effective Repair Methods
To fix the C1155 code, start by replacing the bad ABS speed sensor and checking that all the wiring connections are in good shape and not corroded.
First, disconnect the battery to stay safe. Use a multimeter to check if the wiring harness is working properly. Look closely at the wiring to see if there are any breaks, frayed wires, or corroded connectors. If you find any damaged wiring, replace it.
Next, take out the faulty ABS speed sensor and put in a new one, making sure it’s lined up and secured properly.
Then, reconnect the battery and use an OBD-II scanner to clear the error codes.
Cost of Fixing C1155 Code
Fixing the C1155 code can cost different amounts depending on the parts that need to be replaced and the labor rates at your repair shop.
If you need to replace a speed sensor, expect to pay between $50 and $150, not counting labor. Fixing damaged wiring or connectors can be more expensive because it takes longer to diagnose the problem.
If the ABS control module is the issue, you might have to spend between $500 and $1,000.
Always use a professional OBD-II scanner for an accurate diagnosis. Identifying the problem correctly from the start can help avoid unnecessary repairs and ensure you fix the C1155 code efficiently.
Preventing Future C1155 Code Issues
Regularly check and clean your ABS connectors to prevent future C1155 code issues. Do routine maintenance by looking for corrosion and ensuring tight connections.
Inspect the wiring for any signs of wear, damage, or exposure. Replace any damaged wires right away to keep the system working properly.
Make sure the speed sensor is in good condition and clean off any dirt or debris. Check the ABS control module to ensure it’s working correctly and has secure connections.
These steps will help reduce the risk of electrical problems and improve sensor accuracy. Add these practices to your regular maintenance routine to keep your ABS system running smoothly and avoid the C1155 code from coming back.
More OBD-II Codes
Frequently Asked Questions
Can I Drive My Car With the C1155 Code Active?
You shouldn’t drive with the C1155 code active. This code means there could be problems with your ABS and it might not work properly. Get it fixed right away to stay safe and keep control of your car.
How Long Does It Take to Fix the C1155 Code?
Fixing the C1155 code can be pretty quick. Diagnosing the issue usually takes about 30 minutes. The repair itself can take anywhere from 1 to 2 hours, depending on how easy it is to get the parts and how complicated the fix is.
Do I Need Specialized Tools to Fix the C1155 Code?
Yes, you need special tools. Use a diagnostic tool like an OBD-II scanner to get the error codes. Check the ABS system, speed sensor, and wiring. These tools help you find the problem and fix it correctly.
Can a DIY Fix Void My Vehicle Warranty?
Fixing your car yourself can cancel your warranty if it causes more problems. Always read your warranty details to understand what could affect it. Using professional tools and certified mechanics can help keep your car’s warranty intact.
Are There Any Temporary Solutions for the C1155 Code?
To temporarily fix the C1155 code, try diagnosing the issue. Start by checking and resetting the ABS fuse. Look at the speed sensor and wiring for any obvious problems, and check the battery voltage. You can also use an OBD-II scanner to clear the C1155 code.
Conclusion
To fix the C1155 code, start by confirming the code with an OBD-II scanner.
Next, check the ABS speed sensor and inspect the wiring. Replace any faulty parts you find.
Once you’ve made the repairs, clear the error codes, take the car for a test drive, and make sure the ABS system is working properly.
Regular maintenance and routine inspections can help prevent this issue from happening again.
Keeping your vehicle’s ABS system in good shape is key to safe driving and top performance.
