In this tutorial, I'm gonna' show you how to test the fan relay and more importantly...
...How to test the radiator fan relay's circuits in the under-hood fuse box. The results of your tests will help you troubleshoot the reason your Honda Accord's radiator fan motor isn't working.
Although this info applies to any 1998-2001 4 cylinder Honda Accord... the basic testing procedure (in each test step) can by applied to any Honda.
Since in this tutorial we're only troubleshooting the fan relay and its circuits... you'll find the radiator fan motor test here: How to Test the Radiator Fan Motor (Honda 2.2L, 2.3L).
Here are the contents of this tutorial at a glance:
If the radiator fan motor relay fails... the most obvious symptom that your Honda Accord will experience is overheating due to radiator fan not coming on.
You'll also see one (or more) of the following symptoms:
The radiator fan relay is located in the under-hood fuse box (see the illustrations in the image viewer).
The under-hood fuse box is located towards the rear of the engine compartment.
The radiator fan relay socket (in the under-hood fuse box) has four female terminals. Each terminal provides a specific signal
Since we're gonna' be testing these radiator fan relay circuits (in the under-hood fuse box), here's a brief description of each:
OK, let's get testing...
There are four separate tests in this tutorial and each one is designed to take the complete novice through the entire troubleshooting experience in a step-by-step way.
Depending on your level of wrenching/diagnosing experience... you can apply the tests to fit your particular situation, or start from TEST 1.
Here's a brief description of each.
“This planet has - or rather had - a problem, which was this: most of the people living
on it were unhappy for pretty much of the time. Many solutions were
suggested for this problem, but most of these were largely concerned
with the movement of small green pieces of paper, which was odd
because on the whole it wasn't the small green
pieces of paper that were unhappy!”
The Hitchhiker's Guide to the Galaxy