• Warning lights on the dashboard
• Intermittent loss of communication with certain vehicle systems
• Vehicle systems not functioning properly
• Faulty wiring or connections in the CAN bus
• Damaged or faulty control module
• Interference from other electronic devices
CAN bus: Controller Area Network, a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other.
Control Module: An electronic device that controls various functions in the vehicle.
• U0036
• U0037
This code means there's a problem with the car's computer talking to one of the parts. It's like when two friends are trying to talk but their phones aren't working.
U0035 indicates a communication issue on the vehicle's CAN bus, specifically a low-speed network fault.
The U0035 code is set when the vehicle's control modules detect a malfunction in the communication network, specifically in the low-speed CAN bus. This can affect the ability of different modules to communicate with each other, leading to potential malfunctions in vehicle operations.
• Check for any other related codes and address them first.
• Inspect the CAN bus wiring and connections for damage or corrosion.
• Test the control modules for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace faulty control modules.
• Clear the code and test drive the vehicle to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Wiring diagram
$100 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain vehicle wiring.
• Avoid adding aftermarket electronic devices that may interfere with the CAN bus.
• Keep the vehicle's software updated.
Communication Issue
• If you notice warning lights, have your vehicle checked as soon as possible.
• Avoid using aftermarket electronic devices that are not compatible with your vehicle.
• Regular maintenance can help prevent such issues.
Check with your vehicle manufacturer for warranty coverage on control modules and wiring issues.
This code has become more common as vehicles have become more reliant on electronic communication between modules.
Moderate – While the vehicle may still operate, unresolved communication issues can lead to more significant problems.
Driving with unresolved communication issues can lead to safety risks. Always ensure your vehicle is in proper working condition.
• Vehicle ignition on
• Engine running
The CAN bus wiring is typically located throughout the vehicle, connecting various control modules.
Q: Can I drive my car with a U0035 code?
A: It's possible, but not recommended. Communication issues can lead to other problems.
Q: How do I clear a U0035 code?
A: Use an OBD-II scanner to clear the code after fixing the issue.
