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Code C0555

Quick reference

C0555 at a glance

Plain-language meaning
The car's computer thinks the wrong part is installed on one of the wheels, which might confuse the car about how fast it's going.
Urgency
Moderate – It may affect vehicle safety systems like ABS and traction control.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Socket set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

The car's computer thinks the wrong part is installed on one of the wheels, which might confuse the car about how fast it's going.

Explanation

The vehicle's control module has detected that the left front wheel speed sensor is not the correct part for the vehicle.

Technical description

The C0555 code indicates that the control module has identified an incorrect component installed for the left front wheel speed sensor. This could be due to a mismatch in the sensor's specifications or a completely different sensor being installed.

Symptoms

• ABS warning light on

• Traction control system malfunction

• Inaccurate speed readings

Common Causes

• Incorrect wheel speed sensor installed

• Sensor not compatible with vehicle's system

• Aftermarket sensor with wrong specifications

Glossary

OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics in vehicles.

ABS: Anti-lock Braking System, a safety system that prevents the wheels from locking up during braking.

Diagnosis steps

• Verify the part number of the installed sensor

• Check compatibility with the vehicle's specifications

• Inspect wiring and connections for any issues

Repair procedures

• Replace the incorrect sensor with the correct part

• Ensure the new sensor is properly connected

• Clear the code and test drive to verify the fix

Tools required

• OBD-II scanner

• Multimeter

• Socket set

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Silverado

• GMC Sierra

• Cadillac Escalade

Preventive measures

• Use OEM parts for replacements

• Verify part compatibility before installation

• Regularly inspect wheel speed sensors

Error code type

Sensor Issue

User experience recommendations

• Consult a professional mechanic if unsure

• Avoid using non-compatible aftermarket parts

Warranty information

Check with the vehicle's manufacturer for warranty coverage on sensor replacements.

Historical data

This code has been associated with incorrect part installations, particularly when aftermarket parts are used.

Urgency level

Moderate – It may affect vehicle safety systems like ABS and traction control.

Testing conditions

• Vehicle stationary

• Engine running

Component location

The left front wheel speed sensor is located near the wheel hub of the left front wheel.

FAQs

Q: Can I drive with a C0555 code?
A: It's not recommended, as it can affect safety systems like ABS and traction control.

Q: How do I know if the sensor is incorrect?
A: Check the part number and ensure it matches the vehicle's specifications.

Optional diagnostic gear

Tools that may help diagnose C0555

FOXWELL Multi-System Scanner diagnostic tool illustration

Pro · Four-system diagnostics

FOXWELL Multi-System Scanner

A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.

Chassis and ABS faults usually need a scanner that can read brake-system data directly.

View on Amazon
EPAuto 1/2" Torque Wrench diagnostic tool illustration

Universal · Torque wrench

EPAuto 1/2" Torque Wrench

Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.

Useful when wheel, hub, or suspension hardware needs correct reassembly torque.

View on Amazon
MaxxHaul Vehicle Ramps diagnostic tool illustration

Universal · Drive-on ramps

MaxxHaul Vehicle Ramps

Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.

Helpful for safer access during underbody inspection work.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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