WOMS
B code body Medium severity

B1706 Seat Driver Recline Rearward Switch Circuit Open

The OBD2 code B1706 indicates a malfunction in the driver seat recline rearward switch circuit, specifically that the circuit is open, meaning there is a break or disconnection preventing proper function

Definition

The OBD2 code B1706 indicates a malfunction in the driver seat recline rearward switch circuit, specifically that the circuit is open, meaning there is a break or disconnection preventing proper function

Common causes

  • Faulty driver recline switch
  • Damaged wiring or connectors
  • Open circuit in the wiring harness
  • Faulty seat control module
  • Poor ground connection
  • Corrosion or dirt in connectors
  • Malfunctioning power seat motor

Common misdiagnoses

  • Faulty seat recline motor
  • Wiring issues or shorts in the seat harness
  • Malfunctioning body control module (BCM)
  • Defective seat position sensor
  • Issues with the power seat switch
  • Problems with the vehicle's electrical system
  • Faulty ground connections

Troubleshooting steps

  1. 1. Check the Basics

    Battery Voltage: Ensure the vehicle's battery is fully charged and in good condition

  2. 2. Fuses

    Inspect the fuses related to the seat control system. A blown fuse can cause circuit issues

  3. 3. Visual Inspection

    Wiring and Connectors: Examine the wiring harness and connectors associated with the driver’s seat recline switch. Look for signs of damage, corrosion, or loose connections

  4. 4. Switch Condition

    Check the recline switch itself for any physical damage or wear

  5. 5. Test the Switch

    Continuity Test: Use a multimeter to check for continuity in the switch. Disconnect the switch and test the terminals to ensure it is functioning properly

  6. 6. Functionality Check

    If possible, test the switch by applying power directly to see if it operates the recline mechanism

  7. 7. Inspect the Seat Control Module

    Module Connections: Ensure that the seat control module is properly connected and that there are no damaged pins or connectors

  8. 8. Module Functionality

    If you have access to a scan tool, check for any additional codes or data related to the seat control module

  9. 9. Check for Shorts or Opens

    Wiring Inspection: Use a multimeter to check for shorts to ground or opens in the wiring between the switch and the seat control module

  10. 10. Resistance Check

    Measure the resistance of the circuit to ensure it is within specifications

  11. 11. Scan for Additional Codes

    Diagnostic Scan: Use an OBD-II scanner to check for any other related trouble codes that may provide additional context for the issue

  12. 12. Clear Codes and Test Drive

    Clear Codes: After performing the above checks and repairs, clear the trouble codes using a scan tool

  13. 13. Test Drive

    Take the vehicle for a test drive to see if the code reappears

  14. 14. Professional Help

    If you are unable to resolve the issue after these steps, consider seeking assistance from a professional mechanic or an automotive technician who specializes in electrical systems. By following these steps, you should be able to identify and potentially resolve the issue related to the B1706 code