How to Diagnose and Solve P1905 OSS Circuit Intermittent Malfunction Issues

Introduction

If you’re a car enthusiast or a DIY mechanic, you’ve probably encountered a variety of car problems. One such issue is the P1905 OSS Circuit Intermittent Malfunction. This article will guide you through the process of diagnosing and solving this problem.

Understanding P1905 OSS Circuit Intermittent Malfunction

Before we dive into the solution, it’s crucial to understand what the P1905 OSS Circuit Intermittent Malfunction is. The Output Shaft Speed (OSS) sensor, also known as the transmission speed sensor, monitors the rotational speed of the output shaft in your vehicle’s transmission. When the Powertrain Control Module (PCM) detects an intermittent signal from the OSS sensor, it triggers the P1905 code.

Signs of P1905 OSS Circuit Intermittent Malfunction

Recognizing the symptoms of a P1905 OSS Circuit Intermittent Malfunction can help you diagnose the problem early. These symptoms include:

– Check Engine Light is on
– Vehicle speedometer may not work
– The vehicle may shift harshly or erratically
– Decreased fuel efficiency

Diagnosing P1905 OSS Circuit Intermittent Malfunction

Step 1: Use an OBD-II Scanner

The first step in diagnosing a P1905 OSS Circuit Intermittent Malfunction is to use an OBD-II scanner. This device can read the trouble codes stored in your vehicle’s PCM.

Step 2: Inspect the OSS Sensor

After retrieving the P1905 code, inspect the OSS sensor. Look for signs of damage or corrosion. Also, check the wiring and connectors for any signs of wear or tear.

Step 3: Test the OSS Sensor

If the OSS sensor appears to be in good condition, test it using a digital multimeter. This will help you determine if the sensor is functioning correctly.

Solving P1905 OSS Circuit Intermittent Malfunction

Step 1: Replace the OSS Sensor

If the OSS sensor is faulty, replace it. Make sure to use a high-quality replacement part to ensure longevity and proper functioning.

Step 2: Repair or Replace Damaged Wiring

If the wiring or connectors are damaged, repair or replace them. Damaged wiring can cause intermittent signals, leading to the P1905 code.

Step 3: Clear the P1905 Code

After fixing the issue, use the OBD-II scanner to clear the P1905 code. Then, take your vehicle for a test drive to ensure the problem is resolved.

Conclusion

Dealing with a P1905 OSS Circuit Intermittent Malfunction can be challenging, but with the right knowledge and tools, you can diagnose and solve this issue. Remember, regular maintenance and inspections can help prevent such problems in the future.

FAQs

1. What causes a P1905 OSS Circuit Intermittent Malfunction?

A P1905 OSS Circuit Intermittent Malfunction is typically caused by a faulty OSS sensor, damaged wiring, or poor electrical connections.

2. Can I drive my car with a P1905 OSS Circuit Intermittent Malfunction?

While it may be possible to drive with a P1905 code, it’s not recommended. This issue can affect your vehicle’s performance and fuel efficiency.

3. How much does it cost to fix a P1905 OSS Circuit Intermittent Malfunction?

The cost to fix a P1905 OSS Circuit Intermittent Malfunction can vary depending on the cause of the problem. However, an OSS sensor replacement typically costs between $100 and $200.