B1723 – Seat Driver Rearward Switch Circuit Short To Battery

The ODBII code B1723 indicates a malfunction in the driver rearward seat switch circuit, specifically that there is a short circuit to the battery, causing an electrical fault in the seat adjustment system.

The severity of ODBII code B1723 is moderate.

Common Causes For: B1722 Seat Driver Rearward Switch Circuit Open

• Shorted wiring or connectors
• Faulty seat switch
• Damaged seat harness
• Corroded connectors
• Malfunctioning power seat module
• Grounding issues

Common misdiagnosis for B1723 Seat Driver Rearward Switch Circuit Short To Battery

• Faulty seat switch
• Wiring harness issues
• Shorted wiring
• Faulty seat control module
• Battery or power supply issues
• Grounding problems
• Incorrectly installed seat components

Common Troubleshooting Steps

When dealing with an OBD-II code B1723, which indicates a “Seat Driver Rearward Switch Circuit Short To Battery,” you can follow these common troubleshooting steps:

• Verify the Code: Use an OBD-II scanner to confirm the presence of the B1723 code. Clear the code and see if it returns after a short drive.
• Inspect the Wiring and Connectors:
• Check the wiring harness and connectors associated with the driver seat switch. Look for any signs of damage, fraying, or corrosion.
• Ensure that all connectors are securely attached and free of dirt or moisture.
• Check the Seat Switch:
• Test the driver seat rearward switch for proper operation. You can use a multimeter to check for continuity and resistance.
• If the switch is faulty, it may need to be replaced.
• Inspect the Power and Ground:
• Verify that the switch is receiving the correct voltage. Use a multimeter to check for power at the switch when the ignition is on.
• Check the ground connection for the switch to ensure it is secure and functioning properly.
• Look for Short Circuits:
• Inspect the wiring for any signs of a short circuit, such as wires that may be pinched, frayed, or touching metal parts of the vehicle.
• Use a multimeter to check for continuity between the switch circuit and the battery or ground.
• Check for Related Codes:
• Look for any other related trouble codes that may provide additional context or indicate a broader issue with the seat control system.
• Test the Seat Control Module:
• If applicable, check the seat control module for faults. This may require specialized diagnostic equipment.
• If the module is faulty, it may need to be reprogrammed or replaced.
• Consult Wiring Diagrams:
• Refer to the vehicle’s service manual for wiring diagrams to understand the circuit layout and identify any potential issues.
• Perform a Visual Inspection:
• Look for any signs of water intrusion or damage in the area where the seat switch and wiring are located.
• Reset the System:
• After repairs, clear the codes and perform a test drive to see if the code returns. If you are not comfortable performing these steps or if the issue persists after troubleshooting, it may be best to consult a professional mechanic for further diagnosis and repair.