B2320 – OBD-II DTC

OBD-II DTC B2320 – Mirror Driver Horizontal Feedback Potentiometer Circuit Failure

DTC B2320 meaning

DTC B2320 refers to a fault in the mirror driver horizontal feedback potentiometer circuit. This circuit is responsible for providing feedback to the vehicle’s control module regarding the position of the side mirror. When the control module detects an issue with this feedback, it triggers the B2320 diagnostic trouble code.

DTC B2320 symptoms

Common symptoms associated with DTC B2320 may include:

• Inability to adjust the side mirror horizontally
• Mirror position not responding to control inputs
• Warning lights on the dashboard related to the mirror system
• Intermittent or erratic mirror movement

DTC B2320 causes

Several factors can lead to the triggering of DTC B2320, including:

• Faulty mirror driver motor
• Defective feedback potentiometer
• Wiring issues such as shorts or open circuits
• Corrosion or poor connections in the circuit
• Faulty control module

DTC B2320 seriousness

DTC B2320 is considered a moderate issue. While it may not affect the overall drivability of the vehicle, it can impair the functionality of the side mirrors, which are crucial for safe driving. Addressing this code promptly is important to ensure proper visibility and safety on the road.

How to diagnose DTC B2320

To diagnose DTC B2320, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B2320 code.
2. Inspect the wiring and connectors related to the mirror driver circuit for damage or corrosion.
3. Test the feedback potentiometer for proper resistance and functionality.
4. Check the mirror driver motor for proper operation.
5. Examine the control module for any faults or software issues.

How to fix DTC B2320 step-by-step instructions

To fix DTC B2320, 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 in the mirror driver circuit.
3. Replace the faulty feedback potentiometer if it is not functioning correctly.
4. Test and, if necessary, replace the mirror driver motor.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the mirror adjustment functionality to ensure the issue is resolved.

How to erase DTC B2320

To erase DTC B2320, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Access the trouble codes menu on the scanner.
3. Select the option to clear or erase codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and perform a test drive to ensure the code does not return.

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