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 » C0607

Code C0607

Symptoms

• ABS warning light on

• Traction control warning light on

• Inconsistent speedometer readings

Common Causes

• Faulty wheel speed sensor

• Damaged wiring or connectors

• Faulty ABS module

Glossary

ABS: Anti-lock Braking System

OBD-II: On-Board Diagnostics II

Related Codes

• C0035

• C0040

Laymans terms

This code means there's a problem with one of the car's wheels. It's like when you have a wobbly wheel on your bike and it doesn't spin right.

Explanation

The C0607 code indicates an issue with the left rear wheel speed sensor signal.

Technical description

The C0607 code is triggered when the vehicle's control module detects an abnormal signal from the left rear wheel speed sensor. This sensor is responsible for monitoring the speed of the wheel and sending this information to the vehicle's control systems, such as ABS (Anti-lock Braking System) and traction control.

Diagnosis steps

• Check for any visible damage to the wheel speed sensor and wiring.

• Use a diagnostic scanner to read the ABS module for additional codes.

• Test the wheel speed sensor with a multimeter for proper resistance.

Repair procedures

• Replace the faulty wheel speed sensor.

• Repair or replace damaged wiring or connectors.

• Replace the ABS module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Socket set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Silverado

• GMC Sierra

• Cadillac Escalade

Preventive measures

• Regularly inspect wheel speed sensors.

• Avoid driving through deep water.

• Keep the undercarriage clean.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the warning lights.

• Have the vehicle inspected by a professional.

• Avoid hard braking until the issue is resolved.

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 frequently driven in harsh conditions.

Urgency level

Moderate – It affects braking performance, so it should be addressed promptly.

Legal and safety notice

Driving with a faulty ABS sensor can affect braking performance and is not recommended.

Testing conditions

• Vehicle parked on a level surface

• Ignition in the 'ON' position

Component location

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

FAQs

Q: Can I drive with a C0607 code?
A: It's not recommended as it affects the ABS and traction control systems.

Q: How do I reset the ABS light?
A: Fix the underlying issue, then use a diagnostic scanner to clear the code.

Last updated: Feb 8, 2026 • Source: internal database

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