B1683 – Mirror Driver/Passenger Switch Circuit Failure

The ODBII code B1683 indicates a malfunction in the mirror driver or passenger switch circuit, which may affect the operation of the side mirrors.

The severity of ODBII code B1683 is generally considered moderate.

Common Causes For: B1682 PATS Is Disabled (Check Link Between PATS And Transponder)

• Faulty mirror switch
• Damaged wiring or connectors
• Short circuit in the circuit
• Open circuit in the circuit
• Faulty mirror motor
• Corroded terminals
• Poor ground connection
• Malfunctioning body control module (BCM)

Common misdiagnosis for B1683 Mirror Driver/Passenger Switch Circuit Failure

• Faulty window switch
• Wiring issues
• Defective mirror motor
• Body control module failure
• Short circuit in the wiring harness
• Faulty door control module
• Incorrectly installed or damaged mirror assembly

Common Troubleshooting Steps

The OBD-II code B1683 indicates a problem with the mirror driver or passenger switch circuit. This code typically relates to issues with the power mirrors in a vehicle. Here are some common troubleshooting steps to diagnose and potentially resolve the issue:

• Check for Additional Codes: Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are multiple issues.
• Inspect the Wiring and Connectors:
• Visually inspect the wiring harness and connectors associated with the mirror switch and mirrors. Look for any signs of damage, corrosion, or loose connections.
• Pay special attention to the wiring that runs through the door, as this area is prone to wear and tear.
• Test the Mirror Switch:
• Remove the mirror switch from the vehicle and test it with a multimeter to ensure it is functioning correctly. Check for continuity in the switch when it is activated.
• If the switch is faulty, replace it.
• Check the Power and Ground:
• Use a multimeter to check for power and ground at the mirror switch connector. Ensure that the switch is receiving the correct voltage and that the ground is solid.
• If there is no power, trace the wiring back to the fuse box and check for blown fuses or damaged wiring.
• Inspect the Mirrors:
• Check the mirror motors for functionality. If the mirrors are not responding, they may be faulty and need replacement.
• If the mirrors are heated or have additional features, ensure those functions are also working properly.
• Check for Short Circuits:
• Inspect the circuit for any short circuits that may be causing the issue. This can be done by checking the resistance in the wiring and looking for any unintended connections.
• Look for Water Intrusion:
• Water can cause electrical issues, especially in door assemblies. Check for any signs of moisture or water damage in the door panel or around the mirror assembly.
• Reset the Code:
• After performing any repairs or replacements, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns.
• Consult a Professional:
• If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or an automotive electrician for further diagnosis. By following these steps, you should be able to identify and resolve the issue related to the B1683 code.