• Check Engine Light is on
• Vehicle may not start
• Loss of certain vehicle functions
• Faulty control module
• Damaged wiring or connectors
• Network communication error
Control Module: An electronic device that controls one or more of the electrical systems in a vehicle.
Network: The system of interconnected control modules in a vehicle that communicate with each other.
• U0100
• U0121
This code means that one of the car's computers isn't talking to another computer like it should. It's like when two friends have a misunderstanding and don't share information with each other.
U0697 indicates a communication error between control modules in the vehicle.
The U0697 code is set when there is a loss of communication with a specific control module in the vehicle's network. This can be due to a malfunction in the module itself, wiring issues, or a network problem.
• Check for additional codes to identify the specific module
• Inspect wiring and connectors for damage
• Test the suspect module for proper operation
• Repair or replace damaged wiring
• Replace faulty control module
• Clear codes and test drive the vehicle
• OBD-II scanner
• Multimeter
• Wiring diagrams
$150 - $600
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect wiring and connectors
• Keep software updated
• Avoid aftermarket modifications that affect the network
Communication Error
• Consult a professional mechanic
• Avoid driving the vehicle if critical systems are affected
Check with your vehicle manufacturer for specific warranty coverage on control modules.
U0697 is a relatively uncommon code, typically associated with newer vehicles that have complex electronic systems.
Moderate – It should be addressed soon to avoid potential loss of vehicle functions.
Driving with unresolved communication errors can lead to safety risks if critical systems are affected.
• Vehicle in 'On' position
• All modules powered
The affected control module is typically located within the vehicle's electronic control unit (ECU) network.
Q: Can I drive with a U0697 code?
A: It's best to have it checked as soon as possible, especially if you notice any loss of vehicle functions.
Q: Will a U0697 code clear itself?
A: The code may clear if the issue is resolved, but it's best to manually clear it with a scanner after repairs.
