Toyota Nation Forum banner
1 - 7 of 7 Posts

· Registered
Joined
·
303 Posts
Discussion Starter · #1 · (Edited)
Just thought I would post this in case anyone likes high tech gadgets. I am not affiliated with the vendor in anyway.Basically, this is for the truely lazy, like myself, that would like their trucks to take over as much as possible. Goes along with auto head light on and off, electric lift gates, etc.

I had installed one of these units on my previous SUV 7 years ago. It was kind of cool, worked ok, but was not totally satisfied with it as I thought they could make it work better. When I installed the original unit, the system disabled the factory intermittent wiper switch controls. The factory switch could turn the system on, wiper to slow or to fast and controlled the sensitivity of the system. But you lost the intermittent wiper control. Also it did not always seem to pick the best wiper speed.

But I decided to install it on my 09 HH. They seemed to improve the system. Supposed to have better sensitivity and it has a seperate switch to control the system. Your original factory switch now retains complete manual (intermittant) control of the wipers, which is a vast improvement over the old system.

Installation is not too bad. It took me about 2 hours. There are four wires involved. All four are easily acessable by removing the steering wheel cover. Two screws and it snaps apart. I thought I would post the procedure.

* Start the car and move the steering wheel 90 degress till you can see the phillip's head screw on the right and laft side of the column cover and remove them.

+ Snap off the column cover.

* I paid for access to the TPIS system and figured out the leads positions and color coding. Inspect the harness going into the wiper switch. You will see the following leads:

Position 1 - Violet - this is your 'Cam' lead
Position 2 - Light Blue - this is your +12V lead
Position 3 - Black - This is your 'Slow' speed lead
Position 4 - White - This is your 'Fast' speed lead

These leads are a thicker guage over the other leads so are easy to spot and there is plenty of room to slice and cut. For the cut, I used those fancy twist lock connectors I saw on Two Guy's Garage rather than the crimping ones. Soldering is another way to go. For the taps I just used regular crimping taps.

You 'tap' into leads 1, 2, and 4 and have to cut lead 3 (black) to splice two leads between the side the goes into the switch and the side that goes towards the motor and connect the corresponding leads to each side from the controller harness. Following the directions that came with the unit. There are a few other leads coming out of the controller that have to be connected together, but they don't attached to any thing else in the car except to a ground.

They provide a switch to control the system. I mounted the switch in one of the blanks on the lower dash panel. It was a bit of work to get this pannel off. I had to remove the driver's kick plate (next to the parking brake) to get access to the 10mm bolts that hold it in the bottom. Then it just snaps out. I drilled out the blank and fit the switch in. The switch just ties into leads to the controller.

You then have to mount the sensor to the windshield. Make sure you mount it somewhere behind the mirror so it is not visable when you are driving, but is not on the area covered by the black dots and is under the windshild wiper sweep. Run the cable thru the headliner and down the pillar and plug it into the controller. Make sure you don't interfere with your side curtain air bag. Make sure you clean the windows thoroughly with the wipe provided so you get a clear reading.

When the switch is on the on position, the system is on and the wiper will activate when it senses rain. It will automatically adjust the speed depending on the amount of rain sensed. If you turn the switch to the off position, your wiper system is under complete manual control just like it came from the factory. All washer functions are the same either way.

It is dry season now so I cannot yet judge how well the newer sytem judges speed. It won't be until rainy season starts in July when I can truely judge its effectiveness. It seems to work well with a spray bottle and hose to test it.

Here is a few picts.





BTW - on the previous SUV I had the dealer cracked the windshield when it went in for service. I had to order another sensor mount so I could get the system to work after they replaced the windshield. So this time I just ordered a second mount so I have it just incase - that way I don't ever expect my windshield to need to be replaced!

This is the 'Rain Tracker' system.
 

· Registered
Joined
·
134 Posts
I had them on my Lexus GX470, RX350 and on my 3 series BMW and loved them on every one of those cars - one of the best inventions in years in my book - the intermittent setting is always wrong needs to be adjusted faster or slower to keep up with the rain etc. With these, I just put it on and forget about it!
 

· Registered
Joined
·
303 Posts
Discussion Starter · #6 ·
One thing I forgot to mention - there are two wiring diagrams included in the kit. Make sure you follow the ones marked HSS (Hot Side Switching) - very important!

Good luck with your install. If you have questions PM me.
 

· Registered
Joined
·
134 Posts
All done - I did follow the top wiring diagram, somehow drifted to the bottom one at some point, but caught it. Wiring was pretty easy, it would be nice if they made a couple different kits as half the wires just hook to each other. It was real easy to tap into the wiring and everything was handy right near the steering column, so the install was pretty easy. Sensor is very small and I managed to get the wire under the plastic that hides the wire to the rear view mirror, so all looks nice and it works very well. I didn't have the blank panel as that is the switch for the 120V outlet in the back if you have RSE, so I drilled a hole down below the start/stop button on that panel for the on off switch which worked out well.

Thanks for all the color codes and info to help me get this done - in mine, the first wire you call violet was very much pink, but all the others where the same and I didn't use the CAM output for lights anyway.

Good mod and one of my favorite things I have had on other vehicles - supposed to rain on and off this weekend, so hopefully I get a chance to try it out.

Rob
 
1 - 7 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top