Q: Keep blowing IOD Fuse

asked by on

I keep blowing my IOD Fuse, i cant seem to find a wire shorting it and blowing it or anything.
My car has an automatic transmission.

You will need to obtain a factory wiring diagram for your vehicle, and unplug each sensor or component power by the IOD fuse, one at a time, to see which one removes the short to ground. Rather than blowing fuses repeatedly, you can use an ohmmeter hooked up to the other side of the fuse and ground, and this will likely display a low resistance signaling a short to ground. As you remove components, watch to see when the resistance gets higher, indicating the circuit is no longer shorted. Whichever component fixes the short is likely either failed or has faulty wiring. If after this you still can’t find the cause of the blown fuses, then I would suggest having a professional, such as one from YourMechanic, diagnose your electrical issue for you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Keep blowing IOD Fuse

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car won't start up after changing injectors

Hi there. Thanks for contacting us tonight about your Jeep Grand Cherokee's starting problems. In most cases, sticking with the OEM replacement parts will produce the best results. This is especially true in regards to fuel pumps and fuel injectors....

Q: Tire pressure monitoring system needs service

Hi, thanks for writing in. Usually when your tire pressure monitoring system has an issue, it is due to one of the sensors in the wheels. If it is not due to one of the sensors in the wheels I...

Q: Hose hanging underneath car

There are a variety of things that could resemble a hose hanging from the bottom of your car. Without additional information related to the steering symptoms it would be tough to say specifically. Some things to consider are: Does the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...