B1659 – OBD-II DTC

OBD-II DTC B1659 – Seat Driver Front Up Circuit Failure

DTC B1659 meaning

DTC B1659 refers to a diagnostic trouble code indicating a failure in the seat driver front up circuit. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components and systems for faults. Specifically, B1659 points to an issue with the electrical circuit responsible for controlling the upward movement of the driver’s seat.

DTC B1659 symptoms

Common symptoms associated with DTC B1659 may include:

• The driver’s seat not moving up or down.
• Intermittent or complete failure of seat adjustment functions.
• Warning lights illuminated on the dashboard.
• Unusual noises when attempting to adjust the seat.

DTC B1659 causes

Several factors can lead to the occurrence of DTC B1659, including:

• Faulty seat adjustment switch.
• Damaged wiring or connectors in the seat adjustment circuit.
• Malfunctioning seat motor.
• Issues with the vehicle’s body control module (BCM).
• Corrosion or poor connections in the electrical system.

DTC B1659 seriousness

The seriousness of DTC B1659 can vary. While it may not pose an immediate safety risk, it can affect the driver’s comfort and ability to adjust the seat properly. If left unaddressed, it may lead to further electrical issues or complications with other systems in the vehicle.

How to diagnose DTC B1659

To diagnose DTC B1659, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1659 code.
2. Inspect the seat adjustment switch for any visible damage or wear.
3. Check the wiring and connectors for signs of corrosion or disconnection.
4. Test the seat motor for functionality using a multimeter.
5. Examine the body control module for any fault codes or issues.

How to fix DTC B1659 step-by-step instructions

To fix DTC B1659, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Inspect and replace the seat adjustment switch if it is found to be faulty.
3. Repair or replace any damaged wiring or connectors in the seat adjustment circuit.
4. Test and replace the seat motor if it is not functioning correctly.
5. Recheck the body control module for any issues and reprogram if necessary.
6. Reconnect the battery and clear the DTC using an OBD-II scanner.

How to erase DTC B1659

To erase DTC B1659, 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 trouble codes section on the scanner.
4. Select the option to clear or erase the 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 return.

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