How to Fix B1307 Oil Level Switch Circuit Short to Battery

Introduction

If you’re experiencing the B1307 error code on your car, it means that there’s a problem with the oil level switch circuit. This can be a frustrating issue to deal with, but fortunately, it’s something that you can fix yourself with a little bit of know-how. In this article, we’ll walk you through the steps you need to take to fix the B1307 error code and get your car running smoothly again.

What is the B1307 Error Code?

The B1307 error code is a diagnostic trouble code (DTC) that indicates a problem with the oil level switch circuit. This circuit is responsible for monitoring the oil level in your car’s engine and sending a signal to the engine control module (ECM) if the oil level is too low. If the ECM detects a short circuit in the oil level switch circuit, it will trigger the B1307 error code.

Step-by-Step Guide to Fixing the B1307 Error Code

Step 1: Check the Oil Level

Before you start troubleshooting the oil level switch circuit, it’s important to make sure that your car has enough oil. Check the oil level using the dipstick and add more oil if necessary. If the oil level is too low, it can trigger the B1307 error code.

Step 2: Inspect the Oil Level Switch Circuit

Once you’ve confirmed that your car has enough oil, it’s time to inspect the oil level switch circuit. Start by locating the oil level switch, which is usually located on the side of the engine block. Check the wiring and connectors for any signs of damage or corrosion. If you notice any damage, you’ll need to replace the damaged parts.

Step 3: Test the Oil Level Switch

If the wiring and connectors look good, the next step is to test the oil level switch itself. To do this, you’ll need a multimeter. Set the multimeter to measure resistance and touch the probes to the terminals on the oil level switch. The multimeter should read a resistance of around 10 ohms. If the resistance is significantly higher or lower than this, the oil level switch is faulty and needs to be replaced.

Step 4: Replace the Oil Level Switch

If you’ve determined that the oil level switch is faulty, it’s time to replace it. Start by disconnecting the wiring harness from the switch and removing the switch from the engine block. Install the new oil level switch and reconnect the wiring harness.

Conclusion

Fixing the B1307 error code may seem daunting at first, but with a little bit of know-how, it’s something that you can easily do yourself. By following the steps outlined in this article, you can diagnose and fix the problem with your car’s oil level switch circuit and get back on the road in no time.

FAQs

1. Can I drive my car with the B1307 error code?

It’s not recommended to drive your car with the B1307 error code. This code indicates a problem with the oil level switch circuit, which can cause damage to your car’s engine if left unchecked.

2. How much does it cost to replace an oil level switch?

The cost of replacing an oil level switch can vary depending on the make and model of your car. On average, you can expect to pay between $50 and $150 for the part and labor.

3. How often should I check my car’s oil level?

It’s recommended to check your car’s oil level at least once a month. This will help ensure that your car has enough oil to run smoothly and prevent damage to the engine.