Any recommendations on a good way to take the relay apart. I know there are two tabs on the side. Do I depress those to release the cover?

 

Checked the relay box
It's all clean, no rust or corrosion, no burn marks, everything is connected.

Rear Window Down
Pin 5 and 6 no click, no movement
Pin 11 and 12 click, but no movement

For all test above the rear window was locked. I am going to go back through and check all the switches and such again.

 

Back Door Lock Detection Switch

No continuity, I think I missed this last time around or was checking the wrong switch.

Is there a way to work around this momentarily to I can find out if it is the problem?

 

To test door lock detection switch functionality,
Remove connector from cover top switch.
DMM set to resistance,
One probe to Pin 2 (blue wire with red stripe)
Other probe to chassis ground, (on side panel column near roll-bar)
Resistance with door lock UP should be open / high
R with door lock down should be low (zero).

Also IF door lock detect switch is working right, back door light should come on when ignition is on, and tailgate is unlocked.

Also need to check other inputs to relay logic:
Resistance of pin 13 (Green with yel stripe) to ground changes between low and high with wiper retracted and wiper in wiping position (I have not verified this. Need others with first-hand experience to chime in)

Resistance of Pin 2 (Red with white stripe) to ground changes between Low and high with glass up or down. (I have not verified this. Need others with first-hand experience to chime in)

To bypass Door Lock Detect Switch to fool module and make it think tailgate is locked, jump terminal 2 (blue wire with red stripe) of cover top switch to ground.


Cover top switch is here:

 

Rear Lock Bypass

Did this no change. I also tried the key on the tail gate just for fun. Nothing there.

Somewhere in all my fooling around the rear wiper motor decided to stop working. It was working off the console switch but now nothing. Need to check into that too.

 

Backdoor light

With window down and tailgate locked - No light on the dash

With window down and tailgate unlocked - Warning light of death

So that's working.

 

Is the Rear Wiper Detection Switch that plugs on the back of the motor wiper motor?

I plugged my meter into it across Pins 1 & 5 and got 0.8 Ohms. According to FSM it should be no continuity in the off position.

I don't currently have a way to turn the wiper on.

 

I do not think Pin 1 and 5 should be tested with each other. Pin 5 is an input (low power) circuit, pin 1 is an output circuit (power for motor).

We need to know what state (floating or shorted to ground) of the following pins relay logic is looking for in order to say safe to roll window up/down:
Pin 2 Back window Limit switch
Pin 13 wiper retract detect

Need others with first-hand experience to chime in, 'cause as I mentioned I haven' verified this before. No time to do it this week.

Another thing you need to check is: Pin 10. This should have zero resistance to ground. Pin is one with Wht-Blk wire here

 

Pin 2 Back window Limit switch
Pin 13 wiper retract detect
So we are looking for resistance from Pin 2 to Ground and then Pin 13 to Ground or is this a voltage test?

I'll check Pin 10 here is a sec.

 

More silly questions.

Pin 10 to Ground - Ig on or off?

 

Pin 10 to Ground with Ig Off - 0.03 - 0.05 Ohms

 

Check resistance of Pins 5 to chassis ground When glass is up, glass down.
Then Pin 13 to ground when wiper retracted and in wiping position.
One position should be open, the other position one closed (low resistance to ground). This means switch is working at it should.

Good. Pin 10 provides steady power ground to relay module.

 

Interesting readings here.

Pin 5 glass up - open
Pin 5 glass down - open

That's probably not good. I also checked with the tailgate lock and unlocked

Pin 13 wiper retracted - 0.8
Pin 13 wiper off it's holder (I can't move it much) - 0.8
Pin 13 with the wiper resting a little above it's holder - open

Something wonky with the retraction sensor I'd guess here. I think it's supposed to be open in the retracted position?

 

Correct, not good. Did you also try just actuating switch by hand?

Gotta be able to mechanically move whatever it is that actuates switch.

Need feedback from others who have actually messed with these switches.

 

Pin 5 - actuating switch

Sorry again a little slow. What does this mean? Is there a manual switch I can move?
Pin 5 talks to the Back Door Window Lock, Cover Top and a bunch of others?

Pin 13
I tried to figure out how to move this my hand but I am failing. I read in a few threads some folks where able to make this move manually but I am looking at the motor and have no idea where to start. Going to check on FSM to see if that is any help.

 

OOPS Sorry (typo), I meant res to gnd of Pin 2 of relay module for window glass up/down (see schematic), should change close or open with glass Up/down.

 

Alright! Will check Pin 2 to ground in a few. Trying to find a hole in the exhaust at the moment.

 

Pin 2

Getting open with both window up and window down.

 

Rear Window Lock

Just returned from roaming around on a pre-1937 Route 66 road with the 4Runner.

I noticed (maybe failed to notice before) that after I put all the wiring back the relay clicks when I turn the key in the tailgate. So some slight progress.

 

Rear Window Motor

Well, trying to be all fancy and such. I tested out the rear window motor. Using the FSM I plugged in the battery and it moved. Halfway through it's cycle I stopped it and tested Pin 13.

Pin 13 - halfway point, 0.8 Ohms

All good so far. I backed it up like in the FSM to the retracted position. Still 0.8 Ohms.

BUT

Now the relay doesn't click at all (11 and 12 to ground) and the key in the back lock doesn't make the relay click either.

Weird.