B1664 – OBD-II DTC

OBD-II DTC B1664 – Seat Driver Rear Up/Down Motor Stalled

DTC B1664 meaning

DTC B1664 refers to a diagnostic trouble code indicating that the seat driver rear up/down motor has stalled. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components for faults. When the system detects that the motor responsible for adjusting the rear seat’s height is not functioning correctly, it triggers this code.

DTC B1664 symptoms

Common symptoms associated with DTC B1664 may include:

• The rear seat does not move up or down when the control switch is activated.
• Unusual noises coming from the seat adjustment mechanism.
• Warning lights illuminated on the dashboard related to the seat or electrical system.
• Intermittent operation of the seat adjustment feature.

DTC B1664 causes

Several factors can lead to the occurrence of DTC B1664, including:

• A faulty seat driver rear up/down motor.
• Wiring issues, such as damaged or corroded connectors.
• Faulty control switch or module that regulates the seat movement.
• Electrical issues, including blown fuses or poor ground connections.

DTC B1664 seriousness

The seriousness of DTC B1664 can vary. While it may not pose an immediate safety risk, it can affect the comfort and functionality of the vehicle’s seating. If left unaddressed, it may lead to further electrical issues or damage to the seat adjustment system.

How to diagnose DTC B1664

To diagnose DTC B1664, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1664 code.
2. Inspect the seat driver rear up/down motor for visible damage or wear.
3. Check the wiring and connectors for signs of corrosion or disconnection.
4. Test the control switch for proper operation using a multimeter.
5. Examine the vehicle’s fuse box for any blown fuses related to the seat adjustment system.

How to fix DTC B1664 step-by-step instructions

To fix DTC B1664, follow these step-by-step instructions:

1. Repair or replace any damaged wiring or connectors found during diagnosis.
2. If the control switch is faulty, replace it with a new one.
3. Replace the seat driver rear up/down motor if it is determined to be defective.
4. Ensure all connections are secure and that the system is properly grounded.
5. Recheck the fuses and replace any that are blown.
6. Clear the DTC using an OBD-II scanner and test the seat adjustment function.

How to erase DTC B1664

To erase DTC B1664, 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 from the vehicle’s memory.
5. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

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