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 » U0565

Code U0565

Symptoms

• Cruise control not working

• Warning light on dashboard

• Intermittent cruise control function

Common Causes

• Faulty cruise control module

• Damaged wiring or connectors

• Network communication issues

Glossary

OBD-II: On-Board Diagnostics, a standardized system in vehicles for diagnosing issues.

Cruise Control: A system that automatically controls the speed of a vehicle.

Related Codes

• U0100

• U0401

Laymans terms

This code means that the car's computer is having trouble talking to one of the parts that help control the car's speed. It's like when your phone can't connect to the internet.

Explanation

The vehicle's network is unable to communicate with the cruise control module.

Technical description

U0565 is a communication error code indicating that the vehicle's control module has lost communication with the cruise control module. This can occur due to wiring issues, a malfunctioning module, or network problems.

Diagnosis steps

• Check for other related codes

• Inspect wiring and connectors for damage

• Test the cruise control module functionality

Repair procedures

• Repair or replace damaged wiring

• Replace faulty cruise control module

• Update vehicle software if necessary

Tools required

• OBD-II scanner

• Multimeter

• Wiring repair kit

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regular maintenance checks

• Ensure software updates are applied

• Inspect wiring harnesses periodically

Error code type

Communication Error

User experience recommendations

• Avoid using cruise control until fixed

• Consult a professional mechanic

• Keep a record of error occurrences

Warranty information

Check with your vehicle's manufacturer for warranty coverage on electronic components.

Historical data

This code has been reported in vehicles with aging electronic systems and is often related to wiring issues.

Urgency level

Moderate – It should be addressed soon to ensure cruise control functionality but is not immediately critical.

Legal and safety notice

Ignoring this issue may lead to reduced vehicle control and safety features. Always consult a professional for repairs.

Testing conditions

• Vehicle stationary

• Ignition on

Component location

The cruise control module is typically located near the steering column or integrated with the vehicle's main control unit.

FAQs

Q: Can I drive my car with a U0565 code?
A: Yes, but the cruise control may not work properly. It's best to get it checked soon.

Q: Will this code affect my car's performance?
A: It primarily affects the cruise control system and should not impact general driving performance.

Last updated: Jan 15, 2026 • Source: internal database

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