• Check Engine Light is on
• Vehicle may not start
• Loss of power or performance issues
• Faulty control module
• Damaged or corroded wiring/connectors
• Network communication failure
ECM: Engine Control Module
TCM: Transmission Control Module
CAN: Controller Area Network
• U0100
• U0140
This code means that one part of the car is having trouble talking to another part. It's like when two friends can't hear each other on a phone call.
U0563 indicates a communication error between the vehicle's control modules.
The U0563 code is set when the vehicle's control modules, such as the Engine Control Module (ECM) and Transmission Control Module (TCM), experience a loss of communication. This can be due to a failure in the Controller Area Network (CAN) bus or a problem with the modules themselves.
• Check for other related codes
• Inspect wiring and connectors for damage
• Test the communication network with a scan tool
• Repair or replace damaged wiring/connectors
• Replace faulty control module
• Reprogram the control module if necessary
• OBD-II scanner
• Multimeter
• Wiring diagram
$150 - $1000
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Keep wiring and connectors clean and dry
• Avoid aftermarket modifications that could affect the network
Communication Error
• Have the vehicle inspected by a professional
• Avoid driving the vehicle if performance issues are severe
Check with your vehicle manufacturer for warranty coverage on electronic components.
This code has been more common in vehicles with complex electronic systems and CAN bus networks.
Moderate – It should be addressed soon to prevent further issues.
Ignoring this code may lead to vehicle performance issues and potential safety hazards.
• Vehicle at operating temperature
• All electrical systems active
The control modules are typically located under the dashboard or in the engine compartment.
Q: Can I drive with a U0563 code?
A: It's not recommended to drive with this code as it can lead to performance issues.
Q: Will a U0563 code clear itself?
A: The code may clear if the issue is resolved, but it often requires a scan tool to reset.
