B2326 – OBD-II DTC

OBD-II DTC B2326 – Mirror Driver Vertical Feedback Potentiometer Circuit Short to Battery

DTC B2326 meaning

DTC B2326 refers to a diagnostic trouble code indicating a problem with the mirror driver’s vertical feedback potentiometer circuit. This code specifically points to a short circuit to battery voltage within the feedback circuit that is responsible for adjusting the vertical position of the side mirror. The feedback potentiometer provides the vehicle’s control module with information about the mirror’s position, allowing for precise adjustments.

DTC B2326 symptoms

Common symptoms associated with DTC B2326 may include:

• Inability to adjust the side mirror vertically.
• Mirror position may be stuck or unresponsive.
• Warning lights or messages on the dashboard related to the mirror system.
• Other mirror-related functions may also be impaired.

DTC B2326 causes

The causes of DTC B2326 can include:

• A short circuit in the mirror driver’s vertical feedback potentiometer circuit.
• Faulty wiring or connectors in the mirror adjustment system.
• Defective mirror assembly or feedback potentiometer.
• Issues with the vehicle’s control module or software glitches.

DTC B2326 seriousness

DTC B2326 is considered a moderate issue. While it may not affect the vehicle’s overall drivability, it can compromise the driver’s ability to adjust the side mirror properly, which is essential for safe driving. Ignoring this code may lead to further electrical issues or damage to the mirror system.

How to diagnose DTC B2326

To diagnose DTC B2326, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B2326 code.
2. Inspect the wiring and connectors associated with the mirror adjustment system for any visible damage or corrosion.
3. Check the feedback potentiometer for proper resistance and functionality.
4. Test the mirror control module for any faults or software issues.
5. Perform a continuity test on the circuit to identify any shorts to battery voltage.

How to fix DTC B2326 step-by-step instructions

To fix DTC B2326, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical system.
2. Inspect and repair any damaged wiring or connectors found during diagnosis.
3. Replace the faulty feedback potentiometer if it is not functioning correctly.
4. Reinstall any components removed during the inspection and ensure all connections are secure.
5. Reconnect the vehicle’s battery.
6. Clear the DTC using an OBD-II scanner and perform a test drive to verify that the issue is resolved.

How to erase DTC B2326

To erase DTC B2326, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the trouble codes section on the scanner.
4. Select the option to clear or erase the codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.