• No sound from the radio
• Radio display not working
• Unable to control radio functions from the steering wheel
• Faulty Digital Audio Control Module (DACM)
• Open or shorted wiring or connectors
• Faulty or damaged control module
DACM: Digital Audio Control Module
OBD-II: On-Board Diagnostics II
• U0155
• U0184
This code means that your car's computer can't talk to the radio. It's like when your phone can't connect to the internet.
The vehicle's control module has lost communication with the radio.
OBD-II Code U0163 indicates a lost communication with the Digital Audio Control Module (DACM). The vehicle's control modules communicate over a network, and this code is set when the communication with the DACM is interrupted.
• Check for other codes and address them first.
• Inspect the wiring and connectors to the DACM for damage.
• Test the DACM for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty DACM.
• Reprogram the control module if necessary.
• OBD-II scanner
• Multimeter
• Wiring diagram
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect wiring and connectors for damage.
• Avoid moisture exposure to electronic components.
• Perform regular system diagnostics.
Communication Error
• Check if the radio functions are working properly.
• Consult a professional if you're unsure about repairs.
Check with your vehicle's manufacturer for warranty coverage on electronic components.
This code has been commonly reported in vehicles with complex infotainment systems.
Low – This issue does not affect vehicle drivability but may impact entertainment features.
Ensure all repairs are performed by a qualified technician to avoid voiding warranties.
• Vehicle in a stationary position
• Ignition in the ON position
The Digital Audio Control Module is usually located behind the dashboard or in the center console.
Q: Can I drive with code U0163?
A: Yes, but you may not have access to radio functions.
Q: Will this code affect my car's performance?
A: No, it only affects the radio communication.
