Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of your car that tells the mirror how far to move left or right. It's like the mirror can't figure out where it's supposed to be.
The vehicle's system has detected a fault in the circuit responsible for providing feedback on the horizontal position of the driver's side mirror.
The B2320 code indicates a failure in the feedback potentiometer circuit that controls the horizontal movement of the driver's side mirror. This potentiometer provides a voltage signal to the vehicle's control module, indicating the mirror's current position. A failure in this circuit means the control module cannot determine the mirror's position accurately.
• Driver's side mirror not adjusting horizontally
• Mirror may move erratically
• Error message on dashboard
• Faulty mirror potentiometer
• Damaged wiring or connectors
• Defective mirror control module
Potentiometer: A variable resistor that provides a voltage signal based on its position.
OBD-II: On-Board Diagnostics, a standardized system for vehicle self-diagnostics and reporting.
• Inspect the mirror and wiring for visible damage.
• Test the potentiometer with a multimeter.
• Check the control module for fault codes.
• Replace the mirror potentiometer.
• Repair or replace damaged wiring or connectors.
• Replace the mirror control module if faulty.
• Multimeter
• Screwdriver set
• OBD-II scanner
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect mirror wiring.
• Avoid forcefully adjusting mirrors manually.
• Keep mirror components clean and free of debris.
Sensor Issue
• Avoid using the mirror adjustment until repaired.
• Manually adjust the mirror if necessary.
• Consult a professional mechanic for diagnosis.
Check with your vehicle manufacturer for warranty coverage on electrical components.
This code has been associated with issues in vehicles with power mirrors, particularly in models with advanced electronic control systems.
Low – The vehicle is safe to drive, but the mirror adjustment feature may be limited.
Ensure mirrors are properly adjusted for safe driving. Consult a professional for repairs.
• Vehicle in park with ignition on.
• Mirror adjustment controls accessible.
The potentiometer is located within the driver's side mirror assembly.
Q: Can I still drive my car with this code?
A: Yes, but the mirror adjustment may not work properly, which can affect visibility.
Q: Is this a common issue?
A: It can occur in vehicles with power mirrors, especially if there is wear or damage to the components.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Body and airbag faults often need a scanner that can access more than generic powertrain codes.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking power, ground, and continuity in body-system circuits.
View on Amazon
Universal · Fuse kit
Useful for electrical diagnosis when blown fuses or circuit faults are part of the troubleshooting process.
Useful when body electrical faults trace back to blown fuses or shared circuits.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.