I sorely miss my intermittent wipers.
They've become erratic and stop working.

When turned on, they freeze during a swipe, sometimes the first or a later one, nothing regular except during the intermittent setting and stopping/freezing in mid swipe.
Both regular slow and fast work as they should.
I have to manually move them down in the regular slow setting, stopping at the bottom to get them out of the way.
There's no sign of the wipers mechanical drive train seizing.
They work just fine in regular slow and fast.
Not sure if the trouble's in the steering column switch, or the wiper module, whatever or wherever that is.
Any thought or suggestions helping are appreciated.

 

The delay wipers are controlled by the CTM. There is no separate module. Low/High are direct from the switch.

There is a relay, should be in the PDC under the hood, that is part of the "park sense" circuit. This circuit basically "trips" the wipers to run and then lets them cycle on the park switch. Might check that first.

 

The thread "Windshield Wiper Woes"added at the end, had me thinking its posts were part of my thread.
The jerking around of the thread by the ads on the page made me lose sight of what was part of my thread and what wasn't.
While there was some useful info there, much of it was irrelevant.
So, I labeled the thread as pretty much hijacked and useless.
After getting my starter fixed, I decided to take another look at it and maybe try again.

So, here goes:
I am, not an electrician, just fed up with the wipers stopping in mid stroke with no working delay.

This is obviously an electrical problem.
It could be centered in the Multi Function Switch [MFS], the Park Sense Relay [PSR] in the Power Dist. Center [PDC], or the Central Timing Module [CTM].
The manual seems to say the CTM is under the passenger end of the dash, but also seems to say elsewhere that it's under the driver's end.

I assume that the PSR in the PDC either works or doesn't.
The relay in the PDC is whole, so it must be OK.
That leaves either the MFS or the CTM as the source.

My Dak has the CTM basic model in it, doors lock, but the wiper delay doesn't change at 10mph as described in the service manual's wiper section.
If it's the CTM, the requirements for a DRB tool seem to make working with this almost an impossibility.
But, I would think one could trace the active wiring from the CTM to the MFS when the delay is in operation.
Power should cease when the wipers freeze.

The wiper's rheostat in the handle has always worked less than smoothly.
The rate of the wiper's delay has been uneven through the turn of the handle.
The delay stays long until near the short delay end.

One should be able to trace the power from the MFS's inlet to it's outlet, or to the wiper motor to isolate the switch as the source.

Thoughts?

 

An added post here as an update and to move the thread up making it easier to find.

OK, I have a 1999 Body Diagnostic Procedures manual that I bought long ago because I couldn't find the 1998.
Because of all the B.S. that goes with how the CTM is incorporated into the Dak and how it's worked with, I'm leery of it's accuracy for the 1998.

I just found and bought the 1998 manual.
I wanted it anyway and it was cheap.
It's coming by media mail, so it'll take a while to get here.
Then, I can check out what is needed to be able to fix the intermittent wipers.

If their problem is controlled by the CTM, It'll require a no longer made DRB III scanning tool.
It is a dealer shop tool.
If you want an older one, or a newer replacement for it, it'll cost a few thousand $s by the time you get everything needed to get it to work for my vehicle.

But, it's just possible the problems I'm experiencing are based in the multi-control switch.
If so, I may be able to fix it.

If it's in the CTM, I'll need an exact replacement for it.
That'll depend on which vehicle and what it controls for it.
Then, if you can get the right replacement module, it'll have to be programmed by the DRB III scanner to do what it needs to do for the vehicle it's installed on.
What keeps me going is that I wanted the manual that's on order.
I can check this out when it arrives, then see if I can fix it myself.

Not very likely, but, Is there a cheap alternative to buying a pricey DRB III?

It's beginning to look hopeless, but I haven't given up yet.
With luck, It'll be a $20 fix if a new multi-control switch will do it, or a DRB III fall into my lap..

 

You might check with a senior tech at a dealer on the big island - I bet there is a DRB3 hiding on a shelf. Now somebody that knows how to use it...maybe not so much. Find it hard to believe a DRB would have grown feet to the big 48.

The Snap-On Modus is supposed to be able to do many DRB3 functions though.

 

The problem hasd fixed itself!
I began turning the delay on, then off when the wipers stopped.
After a while I began to leave the delay on after they stopped.
The wipers would eventually restart on their own then turn off again.
Leaving them on even after they turned off, they would endup turn themselves back on again.
Eventually they began to operate as they should, and still are.