B2351 – OBD-II DTC

OBD-II DTC B2351 – Steering Column Switch Circuit Failure

DTC B2351 meaning

DTC B2351 refers to a fault in the steering column switch circuit. This diagnostic trouble code indicates that the vehicle’s onboard diagnostic system has detected an issue with the electrical signals being sent from the steering column switch, which can affect various functions such as the turn signals, wipers, and other controls integrated into the steering column.

DTC B2351 symptoms

Common symptoms associated with DTC B2351 may include:

• Malfunctioning turn signals
• Inoperative wiper controls
• Warning lights on the dashboard
• Loss of functionality in steering wheel controls
• Intermittent electrical issues in related systems

DTC B2351 causes

The causes of DTC B2351 can vary, but typical reasons include:

• Faulty steering column switch
• Wiring issues, such as shorts or open circuits
• Corrosion or poor connections in the wiring harness
• Faulty connectors or terminals
• Issues with the vehicle’s body control module (BCM)

DTC B2351 seriousness

DTC B2351 is considered a moderate to serious issue. While it may not immediately affect the vehicle’s drivability, it can lead to safety concerns due to malfunctioning turn signals or wipers. Additionally, if left unaddressed, it may result in further electrical problems or damage to the steering column switch or related components.

How to diagnose DTC B2351

To diagnose DTC B2351, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the code.
2. Inspect the steering column switch for visible damage or wear.
3. Check the wiring and connectors for signs of corrosion or damage.
4. Test the continuity of the wiring between the switch and the BCM.
5. Perform a functional test of the steering column switch.
6. Clear the code and see if it returns after a test drive.

How to fix DTC B2351 step-by-step instructions

To fix DTC B2351, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety.
2. Remove the steering column cover to access the switch.
3. Inspect and clean the connectors and wiring.
4. If the switch is faulty, replace it with a new one.
5. Reconnect all connectors and ensure they are secure.
6. Reassemble the steering column cover.
7. Reconnect the battery and perform a functional test.
8. Use an OBD-II scanner to clear the DTC and check for reoccurrence.

How to erase DTC B2351

To erase DTC B2351, 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 ‘Erase Codes’ or ‘Clear DTCs’ option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and turn off the ignition.
6. Start the vehicle and monitor for any reoccurrence of the code.

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