B1660 – OBD-II DTC

OBD-II DTC B1660 – Seat Driver Front Up Circuit Open

DTC B1660 meaning

DTC B1660 refers to a diagnostic trouble code indicating an issue with the seat driver front up circuit. This code is triggered when the vehicle’s onboard diagnostic system detects an open circuit in the electrical path responsible for controlling the upward movement of the driver’s seat. The open circuit can prevent the seat from adjusting properly, affecting driver comfort and safety.

DTC B1660 symptoms

Common symptoms associated with DTC B1660 may include:

• Driver’s seat not moving up or down
• Inconsistent seat movement
• Warning lights on the dashboard related to the seat adjustment
• Possible malfunction of other seat-related features

DTC B1660 causes

The causes of DTC B1660 can vary, but typical reasons include:

• Faulty seat adjustment switch
• Damaged wiring or connectors in the seat adjustment circuit
• Defective power seat motor
• Issues with the vehicle’s body control module (BCM)
• Corrosion or dirt in electrical connections

DTC B1660 seriousness

DTC B1660 is considered a moderate issue. While it may not pose an immediate safety risk, it can lead to driver discomfort due to an inability to adjust the seat properly. Additionally, if left unaddressed, it may indicate underlying electrical problems that could affect other systems in the vehicle.

How to diagnose DTC B1660

To diagnose DTC B1660, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1660 code.
2. Inspect the seat adjustment switch for any visible damage or wear.
3. Check the wiring and connectors for signs of corrosion, fraying, or disconnection.
4. Test the power seat motor for functionality.
5. Examine the body control module for any fault codes or issues.
6. Perform continuity tests on the circuit to identify any open connections.

How to fix DTC B1660 step-by-step instructions

To fix DTC B1660, follow these step-by-step instructions:

1. Clear the DTC using an OBD-II scanner.
2. Inspect and replace the seat adjustment switch if faulty.
3. Repair or replace any damaged wiring or connectors in the circuit.
4. Replace the power seat motor if it is not functioning correctly.
5. Reprogram or replace the body control module if necessary.
6. Reconnect all components and ensure proper operation of the seat adjustment.
7. Recheck for any DTCs using the OBD-II scanner after repairs.

How to erase DTC B1660

To erase DTC B1660, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Access the diagnostic menu on the scanner and select “Erase Codes.”
4. Confirm the action to clear the DTC from the vehicle’s memory.
5. Disconnect the scanner and start the vehicle to ensure the code does not return.

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