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Now we know that all model years, the wire harness is there to support the camera, and 020 (most likely 040) drive support control unit will also support camera. The only missing piece is the camera activation switch. Given everything we have found so far, the support for switch is almost certain there within existing steering wheel wire harness which also supports all other steering wheel buttons functions.
Looks like the camera part number are all the same for '14 and up. and "14 and up grill can have camera installed without any modification. If we get this working, does this mean that we are going to move to adding adaptive cruise.....
Will we need to get a new left side steering wheel control unit? From the images online, it looks like the camera button is attached to the left side. The junk yards have a few pictures of the regular controls which feed into one connector.
I did found the part number for the switch panel that should be a plug and play for the steering wheel. the last two digits C0 or E0 are for the two different color of your wheel. C0 is black. from the picture drawing, there is one simple combined connector, which is a good thing. I guess to do it just need to remove the airbag cover in the center, the two side of panel should be held by taps and clips only.
I hear the radar units are hard to aim but maybe not too hard.
Adding adaptive cruise seems more costly. The sensor is way over $2000 in price, then you will need to replace the cruise stock switch under the steering wheel and wire harness for that switch. the one currently with non-adaptive cruise control are different switch and harness. That one will have to go to the back pack for now
Compare ObsidianBI and BA777 posted picture for the front grill where camera area, I did noticed there are slightly different on the grill, mainly, the area right under the logo, for GX with drive support package, there is a plastic extension off the upper edge of the opening where the camera has been mounted. On GX without drive support package, it is just flat. So in order to mount the camera, there needs to be find a way to add some support piece in order to mounted the camera in that slot.
Compare ObsidianBI and BA777 posted picture for the front grill where camera area, I did noticed there are slightly different on the grill, mainly, the area right under the logo, for GX with drive support package, there is a plastic extension off the upper edge of the opening where the camera has been mounted. On GX without drive support package, it is just flat. So in order to mount the camera, there needs to be find a way to add some support piece in order to mounted the camera in that slot.
If needed, a custom bracket could be made from a 3D printer using PLA plastic (or equivalent) and then either screwed in a pre existing hole or secured with 3M double sided tape.
Speculation on the 4 pin connector and front camera.
A generic backup camera has the following wires.
Yellow RCA (video)
Ground (Black)
Power (Red)
Would it be a safe assumption that each 1 of the 4 pins provides one of the above functions? The last pin opening would be the switch command on the steering wheel?
If that is the case, we could test a generic camera on amazon or aliexpress for $5-20 and cut all the connectors off. Then take male pin connectors to all the wires and hook it up in a crude fashion.
I'm not very knowledgeable with electronics and wiring, but it seems like a reasonable possibility. Unless, Lexus has some kind of proprietary camera wiring.
02-25-18, 03:46 PM
