How to Fix P1303 IDM Failure

Introduction

If you’re experiencing P1303 IDM failure, you’re not alone. This is a common issue that many car owners face, and it can be frustrating to deal with. However, with the right knowledge and tools, you can fix this problem yourself and save money on costly repairs. In this article, we’ll provide you with step-by-step instructions on how to fix P1303 IDM failure.

What is P1303 IDM Failure?

P1303 IDM failure is a diagnostic trouble code that indicates a problem with the Injector Driver Module (IDM). The IDM is responsible for controlling the fuel injectors in your car’s engine. When the IDM fails, it can cause a variety of issues, including rough idling, poor acceleration, and even stalling.

Step-by-Step Guide to Fixing P1303 IDM Failure

Step 1: Check the IDM Relay

The first step in fixing P1303 IDM failure is to check the IDM relay. The IDM relay is located in the power distribution box under the hood of your car. To check the relay, follow these steps:

1. Turn off your car’s engine and remove the key from the ignition.
2. Open the hood of your car and locate the power distribution box.
3. Remove the cover of the power distribution box.
4. Locate the IDM relay and remove it from the box.
5. Inspect the relay for any signs of damage or corrosion.
6. If the relay looks damaged, replace it with a new one.

Step 2: Check the IDM Wiring

If the IDM relay is not the problem, the next step is to check the IDM wiring. The wiring for the IDM is located near the fuel filter housing. To check the wiring, follow these steps:

1. Turn off your car’s engine and remove the key from the ignition.
2. Locate the fuel filter housing under the hood of your car.
3. Inspect the wiring near the fuel filter housing for any signs of damage or corrosion.
4. If the wiring looks damaged, repair or replace it.

Step 3: Check the IDM

If the IDM relay and wiring are not the problem, the next step is to check the IDM itself. To check the IDM, follow these steps:

1. Turn off your car’s engine and remove the key from the ignition.
2. Locate the IDM on your car’s engine.
3. Disconnect the IDM from the engine.
4. Inspect the IDM for any signs of damage or corrosion.
5. If the IDM looks damaged, replace it with a new one.

Useful Tips

– Always wear protective gloves and eyewear when working on your car’s engine.
– Use a multimeter to test the IDM relay and wiring.
– If you’re not comfortable working on your car’s engine, take it to a professional mechanic.

Conclusion

P1303 IDM failure can be a frustrating problem to deal with, but with the right knowledge and tools, you can fix it yourself. By following the step-by-step guide we’ve provided, you can diagnose and fix the issue in no time. Remember to always take safety precautions when working on your car’s engine, and if you’re not comfortable doing it yourself, take it to a professional mechanic.

FAQs

1. Can P1303 IDM failure cause my car to stall?

Yes, P1303 IDM failure can cause your car to stall. This is because the IDM is responsible for controlling the fuel injectors in your car’s engine. When the IDM fails, it can cause a variety of issues, including stalling.

2. How much does it cost to fix P1303 IDM failure?

The cost to fix P1303 IDM failure can vary depending on the cause of the issue. If it’s a simple fix like replacing the IDM relay, it can cost around $20. However, if the IDM itself needs to be replaced, it can cost upwards of $500.

3. Can I drive my car with P1303 IDM failure?

It’s not recommended to drive your car with P1303 IDM failure. This is because it can cause a variety of issues, including stalling and poor acceleration. It’s best to diagnose and fix the issue as soon as possible to avoid further damage to your car’s engine.