C0055 GMC Code - Rear Wheel Speed Sensor Circuit
Quick Answer
The C0055 GMC code indicates a problem with the rear wheel speed sensor circuit in the vehicle's anti-lock braking system (ABS). Common causes include Faulty rear wheel speed sensor, Damaged wiring or connectors, Corrosion or debris affecting sensor performance. 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
- C0055 GMC indicates Rear Wheel Speed Sensor Circuit.
- Common causes
- Common causes include Faulty rear wheel speed sensor, Damaged wiring or connectors, Corrosion or debris affecting sensor performance.
- 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 C0055 GMC Description
The C0055 GMC code indicates a problem with the rear wheel speed sensor circuit in the vehicle's anti-lock braking system (ABS). The wheel speed sensor is responsible for monitoring the speed of the wheels and sending this information to the ABS control module. This data is crucial for the ABS to function properly and prevent the wheels from locking up during sudden braking. When the ABS control module detects a fault in the rear wheel speed sensor circuit, it triggers the C0055 code.
Common Causes of C0055 GMC
- Faulty rear wheel speed sensor
- Damaged wiring or connectors
- Corrosion or debris affecting sensor performance
- Misaligned sensor due to improper installation
- ABS control module malfunction
Symptoms of C0055 GMC
- ABS warning light illuminated on the dashboard
- Traction control light activated
- Braking system feels less responsive or inconsistent
- ABS system engages unexpectedly during normal driving
- Vehicle experiences stability control issues during maneuvers
How to Fix C0055 GMC
- Diagnose the specific cause of the C0055 code using a diagnostic scan tool to pinpoint the faulty component.
- Inspect the rear wheel speed sensor and its wiring for any visible damage, corrosion, or loose connections.
- Replace the rear wheel speed sensor if it is determined to be faulty. Ensure proper alignment and secure installation.
- Repair or replace any damaged wiring or connectors in the circuit.
- Clear the error codes and perform a test drive to verify that the issue has been resolved.
Cost to Fix C0055 GMC
The cost of repairing a rear wheel speed sensor circuit issue can vary depending on the extent of the damage and the specific components that need replacement. On average, the parts for this repair can range from $50 to $200, while the labor costs can be between $100 and $300. Overall, the total repair cost can range from $150 to $500. However, it is advisable to consult with a trusted mechanic or auto repair shop for a more accurate estimate based on the vehicle's make and model, as well as local labor rates.
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Frequently Asked Questions about C0055 GMC Code
1. What are the common symptoms of OBDII code C0055 GMC (Rear Wheel Speed Sensor Circuit)?
- Common symptoms include the ABS warning light being illuminated on the dashboard, traction control issues, and potential loss of stability control.
2. What are the most common causes of OBDII code C0055 GMC?
- The most common causes are a faulty rear wheel speed sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning ABS control module.
3. How can I diagnose the issue related to OBDII code C0055 GMC?
- You can diagnose the issue by performing a visual inspection of the rear wheel speed sensor and its wiring, checking for any visible damage. Using a diagnostic scanner to read the ABS system codes can also help pinpoint the problem.
4. What are some repair tips for addressing OBDII code C0055 GMC?
- Repair tips include checking and cleaning the wheel speed sensor connectors, ensuring the sensor is properly installed and functioning, and checking the ABS control module for any issues.
5. Can I drive my vehicle with OBDII code C0055 GMC present?
- It is not recommended to drive the vehicle with this code present, as it can affect the proper functioning of the ABS system and compromise the vehicle's safety features.
6. How much does it typically cost to repair OBDII code C0055 GMC?
- The cost of repair can vary depending on the specific issue causing the code, but it may range from $100 to $300 for parts and labor.
7. Are there any DIY fixes for OBDII code C0055 GMC?
- Some DIY fixes include checking and cleaning the wheel speed sensor connectors, inspecting the sensor and wiring for damage, and resetting the ABS system using a diagnostic scanner.
8. What tools are needed to diagnose and repair OBDII code C0055 GMC?
- Tools needed may include a diagnostic scanner, multimeter for testing electrical connections, wrenches or sockets for removing components, and possibly a soldering iron for repairing wiring.
9. How important is it to address OBDII code C0055 GMC promptly?
- It is important to address this code promptly to ensure the proper functioning of the ABS system and maintain the safety features of the vehicle.
10. Can OBDII code C0055 GMC be a recurring issue?
- Yes, if the root cause of the code is not properly addressed, it can reoccur and potentially lead to further issues with the ABS system over time.
Discuss the causes and fixes for C0055 GMC OBDII Code
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I have a 09 gmc sierra crew cab 4x4 diesel. I keep getting a brake light and a abs light then the check eng. light comes on. Trans. go's in to safe mod. the code is C0055, I all so have a code P0571.
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I can't find any information about the C0055 code in the factory service manual, but the P0571 is for the Cruise Control/Brake Switch, which will set either or all the warning light you mention.
P0571 GMC - Cruise Control/Brake Switch 'A' Circuit Malfunction
Read more: https://www.autocodes.com/p... -
I replaced the brake switch today did a road test cruise control now works great. Bought a rear wheel speed sensor that goes in the transmission transfer case will see what happens with this? But will let you know. Thanks for your help.
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Replaced the rear wheel speed sensor road tested in a bout a mile or so the lights safe mode again now I guess the as to relearn? I will be chasing wires.
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What is the engine size of your Sierra? let me check if I can find any information about the C0055 code.
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Unfortunately I still can't find any information about the C0055 code in the factory service manual, service database or even the internet for your model year. Please double check the code. You could try using a different scanner.
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It's possible that the scanner you have is showing the C0055 code instead of the C005A, then the problem is not the speed sensor on the transmission, but one of the sensors on the wheels.
C005A GMC - Rear Wheel Speed Sensor Circuit
Read more: https://www.autocodes.com/c...
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I just did road test after chasing wires and checking cannon plugs so far no safety mode on trans. Next is the brakes I’am going change the rotors.
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