C1155 Code - Left Front Wheel Speed Sensor Input Circuit Failure
Quick Answer
The C1155 code indicates a problem with the left front wheel speed sensor input circuit in the vehicle's anti-lock braking system (ABS). Common causes include Damaged or corroded wiring leading to the left front wheel speed sensor, Faulty left front wheel speed sensor, Loose or corroded connectors in the sensor circuit. 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
- C1155 indicates Left Front Wheel Speed Sensor Input Circuit Failure.
- Common causes
- Common causes include Damaged or corroded wiring leading to the left front wheel speed sensor, Faulty left front wheel speed sensor, Loose or corroded connectors in the sensor circuit.
- 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 C1155 Description
The C1155 code indicates a problem with the left front wheel speed sensor input circuit in the vehicle's anti-lock braking system (ABS). The wheel speed sensors are responsible for monitoring the speed of each wheel and sending this information to the ABS control module. This data is crucial for the ABS to function properly, allowing it to prevent wheel lock-up during braking and maintain control of the vehicle.
Common Causes of C1155
- Damaged or corroded wiring leading to the left front wheel speed sensor
- Faulty left front wheel speed sensor
- Loose or corroded connectors in the sensor circuit
- Electronic control module (ECM) issues affecting the sensor circuit
- Physical damage to the sensor from road debris or impact
Symptoms of C1155
- ABS warning light illuminated on the dashboard
- Loss of ABS functionality
- Braking feels uneven or less responsive
- Traction control system may also be affected
- Increased stopping distances during braking
How to Fix C1155
- Begin by diagnosing the specific cause of the C1155 code using a diagnostic scanner to pinpoint the issue.
- Inspect the wiring and connectors leading to the left front wheel speed sensor for any damage or corrosion. Repair or replace as needed.
- Test the left front wheel speed sensor itself to determine if it is faulty. Replace the sensor if necessary.
- Clear the ABS system's fault codes and perform a road test to ensure the issue has been resolved.
- If the problem persists, further diagnosis may be required to identify any underlying ECM issues or other potential causes.
Cost to Fix C1155
The cost of repairing a left front wheel speed sensor input circuit failure can vary depending on the specific cause of the issue and the vehicle's make and model. In general, the cost of parts for this repair can range from $100 to $300, with labor costs adding an additional $100 to $200. Overall, the total repair cost may fall between $200 and $500. However, it's important to note that labor rates and part prices can vary significantly based on location and the repair shop chosen. It's recommended to obtain quotes from multiple shops to find the best price for this repair.
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Code C1155 Information for Specific Makes
- C1155 Ford — Left Front Wheel Speed Sensor Input Circuit Failure
- C1155 Infiniti — Brake Fluid Level Low
- C1155 Lincoln — Left Front Wheel Speed Sensor Input Circuit Failure
- C1155 Mercury — Left Front Wheel Speed Sensor Input Circuit Failure
- C1155 Nissan — Brake Fluid Level Low
Frequently Asked Questions about C1155 Code
1. What are common symptoms of OBDII code C1155 (Left Front Wheel Speed Sensor Input Circuit Failure)?
The common symptoms include the ABS light illuminated on the dashboard, traction control system malfunctions, and possible loss of anti-lock brake system functionality.
2. What are the possible causes of OBDII code C1155?
Possible causes of code C1155 include a faulty left front wheel speed sensor, damaged wiring or connectors in the sensor circuit, or a problem with the ABS module.
3. How can I diagnose the cause of OBDII code C1155?
Diagnosing code C1155 typically involves inspecting the left front wheel speed sensor and its wiring for damage, testing the sensor's resistance, and using a scan tool to check for any stored trouble codes in the ABS system.
4. Can I continue driving with OBDII code C1155?
It is not recommended to continue driving with code C1155 present, as it may affect the proper functioning of the ABS system, potentially compromising vehicle safety.
5. Is it possible to repair OBDII code C1155 at home?
Depending on your automotive repair skills, you may be able to repair code C1155 at home by replacing the left front wheel speed sensor, fixing any damaged wiring, or addressing issues with the ABS module.
6. How much does it cost to fix OBDII code C1155?
The cost of fixing code C1155 can vary depending on the root cause of the issue, the make and model of the vehicle, and whether you choose to do the repairs yourself or take it to a professional mechanic. Costs may range from a few hundred to over a thousand dollars.
7. Can a bad wheel bearing cause OBDII code C1155 to appear?
Yes, a bad wheel bearing can cause erratic wheel speed sensor readings, leading to OBDII code C1155 being triggered. It is important to inspect both the wheel bearing and the wheel speed sensor when diagnosing this issue.
8. Will resetting the OBDII code C1155 make it go away permanently?
Simply resetting the code may temporarily clear the warning light, but if the underlying issue causing code C1155 is not addressed, the code is likely to reappear once the problem is detected again by the vehicle's diagnostic system.
9. How urgent is it to fix OBDII code C1155?
It is recommended to address code C1155 promptly to ensure the proper functioning of the ABS system and maintain vehicle safety. Ignoring the issue may lead to further damage or safety risks.
10. Can extreme weather conditions affect the occurrence of OBDII code C1155?
Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate issues with the wheel speed sensor or its circuit, leading to the triggering of code C1155. Regular maintenance and checks can help prevent such issues.
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