ezOBD2 - Free OBD2 Code Lookup and Check Engine Light Diagnostic Tool

Diagnose Your Check Engine Light

Enter OBDII code below:

Code U0698

Symptoms

• Warning lights on the dashboard

• Malfunctioning vehicle systems

• Intermittent electrical issues

Common Causes

• Faulty wiring or connectors

• Defective module

• Interference in the CAN bus network

Glossary

CAN: Controller Area Network, a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other.

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

Related Codes

• U0100

• U0155

Laymans terms

This code means that a part of the car's computer system isn't talking to another part like it should. It's like when two friends stop talking and you need to figure out why.

Explanation

This code indicates a communication problem between modules in the vehicle's network.

Technical description

U0698 is a communication fault code that signifies a loss of communication with a specific module on the vehicle's CAN (Controller Area Network) bus. This can occur due to wiring issues, module failure, or network interference.

Diagnosis steps

• Check for other related codes

• Inspect wiring and connectors for damage

• Test the affected module for proper operation

Repair procedures

• Repair or replace damaged wiring

• Replace the defective module

• Clear the codes and test drive the vehicle

Tools required

• OBD-II scanner

• Multimeter

• Wiring diagram

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regular maintenance of vehicle wiring

• Avoiding modifications to vehicle electronics

• Using surge protectors when charging devices

Error code type

Communication Error

User experience recommendations

• Have a professional diagnose the issue

• Avoid driving if critical systems are affected

Warranty information

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

Historical data

U0698 has been a common issue in vehicles with complex electronic systems, especially as they age.

Urgency level

Moderate – Address soon to prevent further issues.

Legal and safety notice

Driving with unresolved communication errors may lead to malfunctioning vehicle systems, which could be unsafe.

Testing conditions

• Vehicle in park with engine running

• All electrical systems active

Component location

The affected module is typically located within the vehicle's dashboard or engine compartment.

FAQs

Q: Can I drive with a U0698 code?
A: It's best to have it checked as soon as possible, as it may affect important vehicle systems.

Q: How do I clear a U0698 code?
A: After repairs, use an OBD-II scanner to clear the code from the vehicle's computer.

Last updated: Oct 7, 2025 • Source: internal database
🌙