B2304 – OBD-II DTC

OBD-II DTC B2304 – Seat Headrest Feedback Potentiometer Circuit Short to Battery

DTC B2304 meaning

DTC B2304 refers to a diagnostic trouble code indicating a problem with the seat headrest feedback potentiometer circuit. Specifically, it signifies a short circuit to battery voltage within the feedback potentiometer circuit that monitors the position of the seat headrest. This circuit is crucial for ensuring the headrest adjusts correctly according to the user’s preferences and safety requirements.

DTC B2304 symptoms

Common symptoms associated with DTC B2304 may include:

• Inoperative headrest adjustment
• Headrest stuck in one position
• Warning lights illuminated on the dashboard
• Possible related seat adjustment issues

DTC B2304 causes

The causes of DTC B2304 can include:

• Faulty headrest feedback potentiometer
• Wiring issues, such as frayed or damaged wires
• Corrosion or poor connections in the circuit
• Short circuit in the potentiometer circuit
• Faulty seat control module

DTC B2304 seriousness

DTC B2304 is considered a moderate issue. While it may not affect the vehicle’s drivability, it can compromise passenger comfort and safety. A malfunctioning headrest may not provide adequate support in the event of a collision, making it important to address the issue promptly.

How to diagnose DTC B2304

To diagnose DTC B2304, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC.
2. Inspect the wiring and connectors related to the headrest feedback potentiometer for damage or corrosion.
3. Test the headrest feedback potentiometer with a multimeter to check for proper resistance values.
4. Check for any additional DTCs that may provide more context to the issue.
5. Examine the seat control module for faults or malfunctions.

How to fix DTC B2304 step-by-step instructions

To fix DTC B2304, 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 related to the headrest feedback potentiometer.
3. If the potentiometer is faulty, replace it with a new one.
4. Reconnect all connectors and ensure they are secure.
5. Reconnect the vehicle’s battery.
6. Clear the DTC using an OBD-II scanner and test the headrest adjustment to ensure proper functionality.

How to erase DTC B2304

To erase DTC B2304, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the DTC menu on the scanner.
4. Select the option to clear or erase trouble 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.

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