B1702 – OBD-II DTC

OBD-II DTC B1702 – Seat Driver Recline Forward Switch Circuit Open

DTC B1702 meaning

DTC B1702 refers to a diagnostic trouble code indicating an issue with the driver seat recline forward switch circuit. Specifically, it signifies that there is an open circuit in the switch that controls the forward recline function of the driver’s seat. This can prevent the seat from adjusting properly, affecting driver comfort and safety.

DTC B1702 symptoms

Common symptoms associated with DTC B1702 may include:

• Driver’s seat recline function not working
• Warning lights on the dashboard related to the seat or airbag system
• Inconsistent seat positioning
• Possible issues with other seat functions

DTC B1702 causes

The causes of DTC B1702 can include:

• Faulty driver seat recline forward switch
• Damaged wiring or connectors in the switch circuit
• Corrosion or poor connections in the electrical system
• Issues with the body control module (BCM) or other related control modules

DTC B1702 seriousness

DTC B1702 is considered a moderate issue. While it may not immediately affect the vehicle’s drivability, it can impact the driver’s ability to adjust the seat for comfort and safety. Additionally, if the seat adjustment system is linked to the airbag system, it could potentially affect airbag deployment in the event of a collision.

How to diagnose DTC B1702

To diagnose DTC B1702, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1702 code.
2. Inspect the driver seat recline forward switch for visible damage or wear.
3. Check the wiring and connectors for any signs of corrosion or disconnection.
4. Test the switch using a multimeter to ensure it is functioning correctly.
5. Examine the body control module for any faults or related codes.

How to fix DTC B1702 step-by-step instructions

To fix DTC B1702, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Remove the driver seat recline forward switch from the seat assembly.
3. Inspect the switch for damage and replace it if necessary.
4. Check the wiring harness and connectors for any breaks or corrosion repair or replace as needed.
5. Reconnect the switch and ensure all connections are secure.
6. Reconnect the vehicle’s battery.
7. Use the OBD-II scanner to clear the DTC and test the seat recline function.

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