Intermittent Wipers not working

Meccathor · Jul 14, 2005

For the past few years, my intermittent wipers have not worked at all. The two other speeds, fast and extremely fast, work perfectly though. I was looking through my factory service manual, and found that the possible causes of the problem are either A) The Time Control Unit (TCU), B) The wiper amp, or C) the wiper switch.

The problem is that I have no idea where any of these things are located. I searched around this site and Zilvia and didn't really find any answers, hence this thread....

I took these two pictures in my engine bay and I'm pretty sure one of them is the wiper amp, so if you know which is the amp, let me know, and then tell me what the other one is...

I think this one is the wiper amp, but not positive, as i've read in a bunch of threads that its located on the passenger side, though that my only be for s14's...

Here's the other side of the engine bay, I think this is the wiper motor, but again, i'm not positive on that...

As for the Time Control Unit, I have no idea where it is at all. The FSM doesn't give a very good description of its location. So if anyone knows, please let me know.

Also as far as when the FSM refers to the wiper switch, is it talking about the physical switch on the steering column?

Finally, As I was looking around for the TCU, I was checking under the driver side kickpanel and I found this connector that isn't plugged into anything. Does anyone have any idea what this thing is? Here's a picture:

Thanks to anyone who replies! :thumbsup

TomTomTuning · Jul 14, 2005

Wow. if cant say I know what it is..

But this should be set as a STICKY - HOW TO ASK A QUESTION

You have ppl say.
My window wont go down... that’s all they ask.....

Good job!

And Good luck

Meccathor · Jul 15, 2005

I found the answers to most of my questions...

The green box is the wiper amp.
The second picture is the wiper motor.
the third picture is the consult port.

Now all I need to know is where the Time Control Unit is....Anyone know?

Thanks.

Meccathor · Jul 16, 2005

I found out that the Time Control Unit is underneath the driver side kick panel and that it's below the fuse box. I'll probably get around to pinpointing what is causeing my intermittent wipers not to work later this week, and when I do i'll post what was wrong so that this thread will be a handy guide for anyone else that has this problem...

dopeassjackson · Jul 17, 2005

u just need to get a new time control unit or clean it up, im not sure how they make it time delay on the 240s.

S13Point5 · Jul 18, 2005

this is really good info because my intermittent wipers dont work either,..just the other 2 speeds work just like yours,..also whenever i turn off my wipers they just stop where they are at,..they dont go all the way down to the bottom of the windshield when i turn them off,..i have to time it just right and turn them off when they get to the bottom,..does your wipers do this also?

Filthy · Jul 18, 2005

mine stopped working all together, havent got a chance to look at it yet though

yoda · Jul 18, 2005

my wiper dont work at all.i replaced all the parts that are on here and they still dont work.wtf

warpig2003 · Jul 18, 2005

Haha, I as well had this same problem for quite some time. Then all of a sudden my stereo, horn, and cruise control quit working. I got in the fuse box one day trying to look for the horn problem and then all of a sudden my intermittent wipers started working after I had gone looking for its problem probably like 6 monthes before and could not come up with it.

Horn still doesnt work though. Neither do my reverse lights (what the fuck?)

But sorry I couldn't help. Perfect way to ask the question though.

Meccathor · Jul 20, 2005

2.0 EK said:
this is really good info because my intermittent wipers dont work either,..just the other 2 speeds work just like yours,..also whenever i turn off my wipers they just stop where they are at,..they dont go all the way down to the bottom of the windshield when i turn them off,..i have to time it just right and turn them off when they get to the bottom,..does your wipers do this also?

I don't have that problem, mine turn off fine. :12dunno

Meccathor · Jul 26, 2005

I got it fixed...

I took my TCU out and followed the pinpoint check in the factory service manual. Everything checked out ok, so I put it back together and my intermittent wipers started working again...

Really wierd...

A connection must have been loose somewhere and the process of taking it apart and putting it back together had it make contact. :12dunno

Thanks for all the help everyone, I hope this thread turns out useful for others.

srpowered240sx · Jul 26, 2005

what did the TCU look like? i am having the exact same prob. and i want to try the same thing.

Meccathor · Jul 26, 2005

Its a small white box located below the fuse box with a 20 pin connector coming out the bottom. It's attached with one 10mm bolt. You have to take the whole driver side kickpanel off to get it.

srpowered240sx · Jul 27, 2005

thank you, im on my way to try it now. very much appreciated.

Intermittent Wipers not working

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