What is an OBD2 code?

An OBD2 (On-Board Diagnostics) code is a diagnostic trouble code (DTC) generated by your vehicle's computer system when it detects a problem. These codes help identify specific issues with your vehicle's engine, transmission, emissions, or other systems.

How do I read OBD2 codes?

To read OBD2 codes, you'll need an OBD2 scanner. Plug it into your vehicle's OBD2 port (usually located under the dashboard), turn your key to the 'ON' position, and follow your scanner's instructions to retrieve the codes. Each code starts with a letter (P, B, C, or U) followed by four numbers.

What do the different types of OBD2 codes mean?

OBD2 codes are categorized by their first letter: P (Powertrain) for engine and transmission issues, B (Body) for interior systems like airbags, C (Chassis) for mechanical systems like brakes, and U (Network) for computer and module communication problems.

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Home » OBD2 Codes » C0614

Code C0614

Symptoms

• ABS warning light on

• Traction control light on

• Inconsistent speedometer readings

Common Causes

• Faulty wheel speed sensor

• Damaged wiring or connectors

• Misaligned sensor

Glossary

OBD-II: On-Board Diagnostics, a standardized system for vehicle self-diagnosis.

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

Related Codes

• C0615

• C0616

Laymans terms

This code means there's a problem with one of the wheels on your car. It's like when a toy car's wheel is stuck and doesn't spin right.

Explanation

The C0614 code indicates an issue with the vehicle's wheel speed sensor or related components.

Technical description

C0614 is a chassis code related to the wheel speed sensor circuit. It suggests that the sensor is not providing the expected signal, which could be due to a malfunction in the sensor itself, wiring issues, or problems with the sensor's mounting.

Diagnosis steps

• Check the ABS warning light and retrieve codes.

• Inspect the wheel speed sensor and wiring for damage.

• Test the sensor output using a multimeter.

Repair procedures

• Replace the faulty wheel speed sensor.

• Repair or replace damaged wiring or connectors.

• Realign the sensor if misaligned.

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

• Regularly inspect wheel speed sensors.

• Ensure wiring is secured and protected.

• Avoid harsh driving conditions that could damage sensors.

Error code type

Sensor Issue

User experience recommendations

• Have the vehicle inspected by a professional.

• Avoid driving in harsh conditions until fixed.

Warranty information

Check with the vehicle manufacturer for warranty coverage on ABS components.

Historical data

This code has been commonly reported in vehicles with high mileage or those exposed to rough driving conditions.

Urgency level

Moderate – It is advisable to address this issue soon to ensure proper vehicle handling and safety.

Legal and safety notice

Driving with a malfunctioning ABS system can increase stopping distances and the risk of skidding.

Testing conditions

• Vehicle on a level surface

• Ignition in the ON position

Component location

The wheel speed sensor is typically located near the wheel hub assembly.

FAQs

Q: Can I drive with a C0614 code?
A: It's not recommended to drive for long periods with this code, as it can affect braking performance.

Q: How do I reset the ABS light?
A: After repairs, the ABS light can be reset by clearing the codes with an OBD-II scanner.

Last updated: Apr 20, 2026 • Source: internal database

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