B1375 – Oil Change Lamp Circuit Open

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The ODBII code B1375 indicates that there is an open circuit in the oil change lamp system, meaning the system responsible for indicating when an oil change is needed is not functioning properly due to a break in the circuit.

The severity of ODBII code B1375 Oil Change Lamp Circuit Open is generally considered low.

Common Causes For: B1374 Illuminated Entry Relay Short To Ground

  • Faulty oil change lamp
  • Open circuit in wiring
  • Poor connection or corroded terminals
  • Faulty instrument cluster
  • Malfunctioning body control module (BCM)
  • Blown fuse related to the oil change lamp circuit

Common misdiagnosis for B1375 Oil Change Lamp Circuit Open

  • Faulty oil change reminder system
  • Defective oil pressure sensor
  • Malfunctioning engine control module (ECM)
  • Wiring issues or shorts in the circuit
  • Faulty oil level sensor
  • Incorrect oil change interval settings
  • Battery or electrical system problems

Common Troubleshooting Steps

The OBD-II code B1375 indicates an issue with the oil change lamp circuit, specifically that the circuit is open. This can be related to the oil change reminder system in your vehicle. Here are some common troubleshooting steps to diagnose and potentially resolve the issue:

  • Check the Owner’s Manual: Refer to your vehicle’s owner manual for specific information about the oil change lamp system and its components.
  • Inspect the Wiring and Connectors:
  • Visually inspect the wiring harness and connectors associated with the oil change lamp circuit. Look for any signs of damage, corrosion, or loose connections.
  • Ensure that all connectors are securely plugged in.
  • Test the Oil Change Lamp:
  • Check if the oil change lamp itself is functioning properly. If the bulb is burnt out or the LED is damaged, it may cause the circuit to register as open.
  • Check the Oil Change Reset Procedure:
  • Some vehicles require a specific procedure to reset the oil change light after an oil change. Ensure that this procedure has been followed correctly.
  • Inspect the Oil Change Sensor:
  • If your vehicle is equipped with an oil change sensor, check its operation. A faulty sensor can cause the circuit to register as open.
  • Scan for Additional Codes:
  • Use an OBD-II scanner to check for any additional trouble codes that may provide more context or indicate related issues.
  • Check the Fuses:
  • Inspect the fuses related to the oil change lamp circuit. A blown fuse can interrupt the circuit and cause the code to trigger.
  • Test the Circuit:
  • Use a multimeter to test the continuity of the circuit. Check for voltage at the oil change lamp connector and ensure that there are no breaks in the wiring.
  • Clear the Code:
  • After performing any repairs or inspections, clear the code using an OBD-II scanner and see if it returns after a short drive.
  • Consult a Professional:
  • If the issue persists after performing these steps, it may be best to consult a professional mechanic or technician who can perform more in-depth diagnostics. By following these steps, you should be able to identify and resolve the issue related to the B1375 code.

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