Wiper Blade Motor / Wiring Diagram

I have a 1998 Toyota Tacoma 2.4L
I have replaced the fuses, motor, and today will replace the switch hoping to find the fix there. Does anyone know of any other leads besides wiring that could be holding this up?
Or have the diagram or manual I could get a copy of?

 

These are the diagrams I used to troubleshoot my issues. Mine is a 95 3.4L, not positive if they are the same.

 

Does the washer motor cause an issue for the circuit going to the wiper motors? I have never had the washer fluid work...

 

Is the wiper relay in the switch?

 

What exactly is the problem you're having?

 

The wipers stopped working I have replaced the fuse the motor and will replace the switch this afternoon I am curious what I am missing if anything?

 

So I would have started by unplugging the connector at the wiper motor, and rig up a couple wires to your battery to test if the motor is functioning with direct power, following the FSM I posted. Then, I would take a multimeter to the connector you unplugged, to check if the switch is sending power to the connector. If not, I would start tracing back to the switch.
Also check your fuses. I believe there is a relay as well, not sure what the test procedure is for the relay though.

If you already replaced the motor and fuses, you should be narrowed down to either the wiring between the switch and motor, the switch, or the relay.

 

I don't know where the relay is though?

I will check the wiring when I get home. When I did a multimeter the wire to the motor was getting power unsure if the new motor is taking the power which is a good call to check.

 

I know personally on my truck my issues have always been the wiring. I had a mouse chew through the wiring harness as it enters the engine bay through the firewall, I also had wires come unplugged under the steering column where my switch is pinned into a connection box. The pins into a connection box are only used on 95-97, on your 98 it is a little different.
I believe the whole switch just plugs into a connector on the steering column, so I would trace wires to there and check if you have power on both sides of that connection, to see if power is making it out of the switch towards the motor.
There should be three different power wires going to the motor, if I remember correctly one gives constant power to allow the wipers to 'park' after being turned off while the two control high and low speed. If you found power you may have only found the 'return' power, explaining why it still didn't work.

I am actually not finding any information on a relay either, it may just be the fuse under the steering column while the relay is just built into the switch.

 

Also do you have the intermittent wiper switch?

 

No, standard hi/low

 

These should be the correct troubleshooting pages then
Hopefully you'll be able to use that to confirm if it is/isn't the switch, and if you do a test on the motor you might be able to return the one you bought.

 

so test continuity on the switch connection 7 & 16 if its good replace the switch

 

Yeah I would confirm continuity on all the settings, if there is continuity on all of them following that guide then you do not need to replace the switch, the problem is somewhere else. If there is NO continuity on one of them then I would suspect the switch is the problem.
I have heard some people have taken apart the switches and cleaned the contacts to fix problems if you wanted to try that instead of a new one as well.

 

Also, if you do have to or just want to replace the switch, you can replace it with an INT switch if you'd like, they're interchangeable on 98-04 models.

 

Just went out and it would seem it might be getting good power the the switch pin and the switch continuity.

So I guess is there a relay or fuse I am missing. On lunch here soon will take photos of my tests will run through the whole system that I know of so far with my findings.

 

Have a stock one off ebay arriving today.

 

So you confirmed there is power coming from the wiring harness to the switch connector, and then on the switch itself confirmed there was the correct continuity on all settings?

 

yes and yes

 

If you're getting power to the switch the fuse should be fine.
So the switch seems good, the fuse seems good if you have power, the motor seems good.
That leaves the wiring harness between switch and motor, or maybe a poor connection/corrosion on the contacts where the switch itself plugs into the steering column.

I'd double check what power you are getting out of the wiring harness at the motor connector. Maybe check the voltage on the connector pads themselves first and then the wires heading into the connector to make sure.