1998 Civic EX - ever since I bought the car this past August the INT wiper setting never worked, only on low and high.

It was raining today and I had them on low as usual, working fine. Turned them off, went into a store, 20 mins later came out, the wipers don't work at all. It was an interesting drive home.

The mister still works so I don't think its the switch. I pulled the ICU from behind the left cabin fuse box. I'm trying to figure out how to test it.

I'm electrically challenged, any help would be appreciated. I want to figure out if it's the ICU or the motor. Or maybe the switch?

 

Here are some pics of the ICU. It looks like theres a lot of corrosion.

The manual says to test the connector on the harness but I had a hell of time contorting my idiot self to get the ICU off, how the hell do you use a multimeter in there???

Should I just replace it based on the corrosion?








The female side of the 10 pin connector on the harness look OK. I can't see the ones behind the fusebox. Maybe if I was a leprechaun.

 

Replace the ICU. It's a mess.

Also check the wiper fuses. One may be blown.

Does the car have a salvage title from being flooded?

 

Yep got a replacement in the mail off eBay. The fuses are good. The title and carfax did not have anything indicating flood damage.

The steering column does have a noticeable amount of rust surrounding it now that you mention it. Not sure what it's from.

 

How do you know and what fuses did you test?

 

Sorry I should have said fuse singular. I checked the one on the left interior kick panel for the front wiper. It was visually OK. I then replaced it with a new one (20A).

 

Yeah that corrosion is pretty bad, being as it happened during the rain and the rust that is present. Have you considered you have a leak somewhere? If that's the case replacing the ICU is just a temporary fix. This will happen again until you find the reason it happened in the first place.

 

A leak had not occurred to me.

How/where should I check for them at the front/under the steering wheel?

I only looked at the obvious trunk and sunroof before buying, and they are not leaking, as the car had been rained on before and the surrounding areas were dry.

 

Windshield, Hood hinges, and Heater cowl . Thats my first guesses, not saying there is a leak just that it could be a problem.

 

The new ICU fixed it! Wish everything was that easy. Along the way, I found a connector that is hooked up to nothing. Can anyone tell me what it's for? Should I start a new thread?