Adding Steering Wheel Controls To Prado 150 GX

[norrs Lurker Find all posts View Profile Close norrs]

Mate I totally want to do the same thing on my 120 series. My 2006 gxl has no audio controls on the steering wheel. I'm watching the wreckers for a secondhand one and hoping you'll have figured out the wiring by then.

[gympiebrowns Senior Member Find all posts View Profile Close gympiebrowns]

Has anyone had any luck doing this?

If so what was involved, the parts are on ebay for around the $230 to $250 mark

Thanks for any advice

gday Danny i have found these, just order a sample from them to get a single unit, i do most of my shopping here

http://www.alibaba.com/product-gs/49...umn_Wheel.html

[downunder Find all posts View Profile Close downunder]

The only problem with that link is the minimum order is for 1000. Don't think I can afford 1000 Prado's.

[gympiebrowns Senior Member Find all posts View Profile Close gympiebrowns]

The only problem with that link is the minimum order is for 1000. Don't think I can afford 1000 Prado's.

gday Downunder, no mate you just order from them a "sample" single unit, there is no commitment to buy anymore after...have done this with other gear...

[downunder Find all posts View Profile Close downunder]

Fair enough, I believe I have now everything I now need for the conversion so when I get a chance I will do the changeover.

[paddlesteamer Lurker Find all posts View Profile Close paddlesteamer]

STEP ONE: DISCONNECT THE BATTERY AND WAIT TWO MINUTES - the most important step, unless you want an airbag going off by accident.

Step two - remove fiddly little plastic covers on each side of wheel - one is around the cruise control stalk, and the other is a blank cover in the same place on the opposite side. This gives access to the two T30 Torx screws holding the airbag in place.

Use T30 Torx bit to unscrew airbag screws. Lift airbag gently away from steering wheel to gain access to airbag and horn connectors. The horn connector is pretty straightforward to remove, but the two airbag plugs have a locking tab which has to be prized up gently with a small flatblade screwdriver.

Once the airbag is removed the blank "ornaments" as Toyota calls them can be unbolted and discarded.

Next the steering wheel gets removed. Remove the locking nut with an appropriate size socket, then use a steering wheel puller to remove the wheel.

Now remove the top and bottom plastic covers enclosing the combination switch.

Finally remove the combination switch itself after swearing profusely at all the snap together wiring connectors holding it in place.

If you have a replacement clockspring ready, you should be able to see how the clockspring snaps onto the body of the combination switch. There are three claws which need to be gently prised away to release the clockspring from the switch.

Then, as the manuals love to say..... REASSEMBLY IS THE REVERSE OF THE ABOVE !

Take your time, don't force anything if you're not sure, and try not to break any plastic clips.

Enjoy!

[paddlesteamer Lurker Find all posts View Profile Close paddlesteamer]

Oops - forgot some important stuff..... Make sure before you remove the steering wheel that the front wheels are straight, and the steering wheel is centred. Then mark the wheel and the spline shaft so that you can realign them exactly on reassembly.

[paddlesteamer Lurker Find all posts View Profile Close paddlesteamer]

Success ! Finally got the steering wheel audio controls working.

I replaced the GX standard spiral cable (clockspring) with the GXL standard part, which has an extra socket on the steering wheel side for the wires coming from the audio controls. See previous posts for part numbers.

The next part of the puzzle was to figure out which wires needed to be connected to the radio. The wiring diagram has the information but it's hard to interpret. The three wires we need are on connector E12 of the spiral cable, and are as follows:

pin 4 - blue
pin 5 - black
pin 6 - white

Now the next question is where do they go in the fixed wiring harness. According to the wiring diagram they go to connector H28 which plugs to the "Radio Receiver Assembly". So I went looking around behind the radio etc for an unused connector fitting the description, (white 20 pin) but failed. More disappointment.....

Today I decided that I did not care where connector H28 is - I just cut off the wires from pins 4,5,6 and connected fresh wires to them and ran them to the rear of my DIG Options aftermarket radio.

connections were as follows:

E12 pin 4 - blue to pin 10 black on DIG Options control port (GND)
E12 pin 5 - black to pin 13 red on DIG Options control port (Key Ad1)
E12 pin 6 - white to pin 9 white on DIG Options control port (Key Ad2)

The following buttons work now:

Volume up
Volume down
Up arrow/down arrow - causes radio to scan to next station or USB/Ipod to jump to next track
Mode - causes radio to cycle through radio/USB/ipod etc but I can't g
Off hook - causes radio to switch to bluetooth phone mode ready to dial
On hook - causes radio to hang up call
Speech/mute - toggles radio/USB/Ipod mute on/off

[downunder Find all posts View Profile Close downunder]

Success ! Finally got the steering wheel audio controls working.

I replaced the GX standard spiral cable (clockspring) with the GXL standard part, which has an extra socket on the steering wheel side for the wires coming from the audio controls. See previous posts for part numbers.

The next part of the puzzle was to figure out which wires needed to be connected to the radio. The wiring diagram has the information but it's hard to interpret. The three wires we need are on connector E12 of the spiral cable, and are as follows:

pin 4 - blue
pin 5 - black
pin 6 - white

Now the next question is where do they go in the fixed wiring harness. According to the wiring diagram they go to connector H28 which plugs to the "Radio Receiver Assembly". So I went looking around behind the radio etc for an unused connector fitting the description, (white 20 pin) but failed. More disappointment.....

Today I decided that I did not care where connector H28 is - I just cut off the wires from pins 4,5,6 and connected fresh wires to them and ran them to the rear of my DIG Options aftermarket radio.

connections were as follows:

E12 pin 4 - blue to pin 10 black on DIG Options control port (GND)
E12 pin 5 - black to pin 13 red on DIG Options control port (Key Ad1)
E12 pin 6 - white to pin 9 white on DIG Options control port (Key Ad2)

The following buttons work now:

Volume up
Volume down
Up arrow/down arrow - causes radio to scan to next station or USB/Ipod to jump to next track
Mode - causes radio to cycle through radio/USB/ipod etc but I can't g
Off hook - causes radio to switch to bluetooth phone mode ready to dial
On hook - causes radio to hang up call
Speech/mute - toggles radio/USB/Ipod mute on/off

Hi paddlesteemer,

I got mine working about a month a go, but i have not had the time due to work traveling commitments to do the right up.

I am not sure if you have also added the power to the green backlights in the wheel button display or not. When i did mine i did not cut the wires i just gently removed the insulation and soldered the 5 wires (three steering wheel controls) and two for lights.

For the lights i just connected to the light power of switches. I can tell you the pins on the connectors you need to put power to light up the wheel, but i cannot do this to the weekend due to work travel.

My next project is to see if the AC climate control from the GXL will work in the GX.

Dave

[downunder Find all posts View Profile Close downunder]

Hi paddlesteemer,

To get the steering wheel lights to work you need to connect to pin 12 (positive illimination) and pin 10 (Grd) at the downstreem on the clock spring and then run the wore connecting the positive illimination to one of the ilimination lights on the right hand dash switch lights where i just peared off the insulation and soldered it. And the ground wire i connected to one of the ground on i think the same switch, you need to make sure you get them orintated the right way are the lights are diodes and polorised.



Dave

[shodown Senior Member Find all posts View Profile Close shodown]

Hi Guys,

I must say - thanks to all who have contributed to this thread. Saves me a LOT of hassles.

There seems to be two different controls

http://www.alibaba.com/product-gs/74...audio_and.html

http://www.alibaba.com/product-gs/11...o_control.html

Which one is right?

Also, where did you guys source your parts from and what was the total cost?

Cheers,
Kevin

[Hutch Addicted PP Member Find all posts View Profile Close Hutch]

First one looks like it is the GXL/ VX.

Second one looks like the Kakadu wheel.

Hutch- Prado 2012 petrol with the TJM Catologue.

[1501KD Lurker Find all posts View Profile Close 1501KD]

Success ! Finally got the steering wheel audio controls working.

I replaced the GX standard spiral cable (clockspring) with the GXL standard part, which has an extra socket on the steering wheel side for the wires coming from the audio controls. See previous posts for part numbers.

The next part of the puzzle was to figure out which wires needed to be connected to the radio. The wiring diagram has the information but it's hard to interpret. The three wires we need are on connector E12 of the spiral cable, and are as follows:

pin 4 - blue
pin 5 - black
pin 6 - white

Now the next question is where do they go in the fixed wiring harness. According to the wiring diagram they go to connector H28 which plugs to the "Radio Receiver Assembly". So I went looking around behind the radio etc for an unused connector fitting the description, (white 20 pin) but failed. More disappointment.....

Today I decided that I did not care where connector H28 is - I just cut off the wires from pins 4,5,6 and connected fresh wires to them and ran them to the rear of my DIG Options aftermarket radio.

connections were as follows:

E12 pin 4 - blue to pin 10 black on DIG Options control port (GND)
E12 pin 5 - black to pin 13 red on DIG Options control port (Key Ad1)
E12 pin 6 - white to pin 9 white on DIG Options control port (Key Ad2)

The following buttons work now:

Volume up
Volume down
Up arrow/down arrow - causes radio to scan to next station or USB/Ipod to jump to next track
Mode - causes radio to cycle through radio/USB/ipod etc but I can't g
Off hook - causes radio to switch to bluetooth phone mode ready to dial
On hook - causes radio to hang up call
Speech/mute - toggles radio/USB/Ipod mute on/off

Hi paddlemaster can you help me please. Where is the E12 connector located? do you have any pictures

Cheers
Michael

[GeeWhizz Senior Member Find all posts View Profile Close GeeWhizz]

It's been 11 years since paddlesteamer posted this. In case it has slipped his memory: