B1650 – OBD-II DTC

OBD-II DTC B1650 – Seat Driver Recline Forward Circuit Short To Ground

DTC B1650 meaning

DTC B1650 refers to a diagnostic trouble code indicating a problem with the seat driver’s recline forward circuit. Specifically, it signifies that there is a short circuit to ground in the circuit responsible for controlling the forward recline function of the driver’s seat. This issue can prevent the seat from adjusting properly, impacting driver comfort and safety.

DTC B1650 symptoms

Common symptoms associated with DTC B1650 may include:

• The driver’s seat recline function not working or being unresponsive.
• Intermittent or complete failure of the seat adjustment controls.
• Warning lights or messages on the vehicle’s dashboard related to seat adjustments.
• Other seat-related functions may also be affected.

DTC B1650 causes

Several factors can lead to the occurrence of DTC B1650, including:

• A short circuit in the wiring harness connected to the seat recline motor.
• Damaged or frayed wires that may be making contact with the vehicle’s chassis.
• Faulty seat recline switch or control module.
• Corrosion or poor connections in the electrical connectors.

DTC B1650 seriousness

The seriousness of DTC B1650 can vary, but it is generally considered a moderate issue. While it may not prevent the vehicle from operating, it can affect driver comfort and safety. If the seat cannot be adjusted properly, it may lead to an improper driving position, increasing the risk of accidents. Therefore, it is advisable to address this issue promptly.

How to diagnose DTC B1650

To diagnose DTC B1650, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1650 code.
2. Inspect the wiring and connectors associated with the seat recline motor for any visible damage or corrosion.
3. Check the seat recline switch for proper operation using a multimeter.
4. Test the seat recline motor to ensure it is functioning correctly.
5. Look for any additional trouble codes that may provide more context to the issue.

How to fix DTC B1650 step-by-step instructions

To fix DTC B1650, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical system.
2. Inspect the wiring harness for the seat recline motor and repair any damaged wires.
3. Clean any corroded connectors and ensure all connections are secure.
4. Test the seat recline switch and replace it if it is found to be faulty.
5. Check the seat recline motor for proper operation and replace it if necessary.
6. Reconnect the battery and clear the DTC using an OBD-II scanner.
7. Test the seat recline function to ensure it operates correctly.

How to erase DTC B1650

To erase DTC B1650, 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 option to clear or erase trouble codes on the scanner.
4. Confirm the action to erase the DTC.
5. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

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