B1735 – Mirror Driver Vertical Switch Circuit Short To Battery
The ODBII code B1735 indicates a fault in the mirror driver vertical switch circuit, specifically that there is a short circuit to the battery, which means the circuit is receiving power continuously instead of being controlled properly.
The severity of ODBII code B1735 is moderate.
Common Causes For: B1734 Mirror Driver Vertical Switch Circuit Open
- Shorted wiring or connectors
- Faulty mirror switch
- Damaged mirror motor
- Corroded or damaged electrical connections
- Malfunctioning body control module (BCM)
- Incorrectly installed aftermarket accessories
- Water intrusion or moisture damage
Common misdiagnosis for B1735 Mirror Driver Vertical Switch Circuit Short To Battery
- Faulty mirror switch
- Wiring harness issues
- Shorted wiring
- Faulty mirror motor
- Body control module (BCM) failure
- Incorrectly installed or damaged mirror assembly
- Grounding issues
Common Troubleshooting Steps
The OBD-II code B1735 indicates a problem with the mirror driver vertical switch circuit, specifically a short to battery. Here are some common troubleshooting steps to diagnose and resolve this issue:
- Check for Additional Codes: Use an OBD-II scanner to check for any other related trouble codes that may provide more context to the issue.
- Inspect the Wiring and Connectors:
- Visually inspect the wiring harness and connectors associated with the mirror switch and the mirror itself.
- Look for signs of damage, such as frayed wires, corrosion, or loose connections.
- Pay special attention to areas where the wiring may be exposed to heat or moisture.
- Test the Mirror Switch:
- Remove the mirror switch from the vehicle and test it with a multimeter.
- Check for continuity in the switch and ensure that it operates correctly in all positions.
- If the switch is faulty, replace it.
- Check for Short Circuits:
- Use a multimeter to check for continuity between the mirror switch circuit and the battery.
- If you find continuity where there shouldn’t be any, trace the wiring to locate the short circuit.
- Inspect the Mirror Assembly:
- If the vehicle has power mirrors, inspect the mirror assembly for any signs of damage or malfunction.
- Check the motor and other components within the mirror assembly for proper operation.
- Check Ground Connections:
- Ensure that all ground connections related to the mirror switch and mirror assembly are secure and free of corrosion.
- A poor ground connection can cause electrical issues.
- Test the Power Supply:
- Verify that the mirror switch is receiving the correct voltage from the vehicle’s electrical system.
- If the voltage is incorrect, check the fuses and relays associated with the mirror circuit.
- Clear the Code and Test Drive:
- After performing the necessary repairs, clear the trouble code using the OBD-II scanner.
- Take the vehicle for a test drive to see if the code reappears.
- 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 troubleshooting steps, you should be able to identify and resolve the issue related to the B1735 code.