How to add SKS to the hatch and passenger door on a 1 door SKS Gen III Prius

BretSS how great work and writeup! Thanks a lot.

Since I only care about adding the mod to the hatch door how can the procedure simplified?
My european Prius currenty has keyless entry to the drivers door (LHD) and when you grab the handle unlocks all doors.

 

Finally decided to do the hatch door. Understanding the connections required thanks to BretSS's huge help, I only have 1 question.

Has anyone done just the door or just the hatch and if so, did he connect the second antenna in parallel or serial? Any isuues with his mod?

Thanks a lot for any input.

 

i'm probably very late to the game...
for reference:
antenna female part on the antenna was 90980-12382 - this on the antenna itself.
antenna male connector part number: 90980-12381

pin with pigtail part number is 82998-24360.

 

Anyone get this working on 4th Gen or Prime?

 

not that i have seen

 

I added an SKS door handle to the passenger door on my Gen IV Prius based on the write-up that BrettS prepared. It cost me $70 using a handle from a salvage yard. The attached file shows how I did it.

If BrettS or pEEf are still checking this thread, I would appreciate any advice you could offer on the hatch switch. I did verify the wiring for the Gen IV hatch is the same as Gen III. One wire is routed to the Main Body ECU (BDSU) and I found the second wire (TSW6) from the hatch switch. However, for the Gen IV, I only see Ant 1 and Ant 2 at the door handle / Certification ECU (see attached file for Gen IV schematic from TIS). There are no “lock” and “unlock” sensor wires so I am not sure how to wire the hatch switch. Any suggestions would be appreciated.

 

Greatly appreciate the reply Brett. Over 11 years ago and people (like me) are still using your write-up! That says a lot.

I can confirm there are only two wires at the handle. This is also consistent with the schematic from TIS (see attachment). The good news is, just following the schematic wiring (and your write-up) did allow me to add the passenger side SKS handle and it works great. I don't even see a range difference with the driver's door.

I bought a second handle from a salvage yard (wrong color) so I could explore what might be going on inside the handle. I am attaching a photo of what I found inside it. It may be hard to see but there is a small PCB encased in orange plastic (for weather protection I expect) and what appears to be an antenna. There are no other wires anywhere near or in the handle. I was wondering if the handle might sense a capacitance change when the human body touches it. But, this is just a guess.

Not sure I will find a solution to where the lock/unloock function occurs. But, if not, I learned a few things and was able to add an SKS entry point on the passenger side.

If you have any other ideas or thoughts, they would be appreciated.

 

Again, thanks for your kind assistance. The Gen IV handle does work like you describe on the Gen III. Touch the inside of the handle to unlock. Touch a spot on the outside toward the front of the handle to lock.

You have given me some ideas to think about. I will update you (and others) if I make any progress on figuring out the hatch switch.

 

Thanks Brett, I appreciate the additional ideas. I am out of town right now but will investigate further when I return home.

 

Member Bowcoastie had posted that their 2010 Gen II did not have a Lite Green wire under the headliner. Does anyone know what color those with a Gen II can look for and tap into? Not knowing which wire it is has led me to stop with the rest of the mod. I was able to confirm that the wire colors near the passenger floor boot and behind the glove box appeared to still match the Gen III. Provided is Bowcoastie's photo of the Gen II connector, from under the headliner.

 

For anyone wanting to add SKS function to passenger door and rear hatch, I offer the following solution for review and comment:

1. Buy passenger door handle/antenna assy from a model IV or V Prius cheap from auto recycler/ebay: $cheap
2. Replace rear hatch button with one from a model IV or V Prius from auto recycler/ebay: $cheap
3. Buy rear antenna cheap from auto recycler/ebay (toyota part#: 89997-30070): $cheap
4. Buy SKS certification ecu from a model IV or V Prius cheap from auto recycler/ebay: $30 (include harness connector/wires as you will need the female pins from this donor connector)
5. Install the rear antenna according to BrettS instructions, but add the female pins for the rear antenna to the SKS certification ecu harness for direct connection to ecu
6. Install the passenger door handle assy according to BrettS instructions, but add the female pins to the SKS certification ecu harness for direct connection to ecu
7. Buy virgin key fob(s) boards from china/Aliexpress: $40ea
8. If don't have already, get TechStream running on a laptop (refer to many threads on this subject)
9. Program the keys to the SKS certification ecu using Techstream

Anyone tried this?

 

Ok, looking through this and was wanting to do this to my 2012 prius v, I pulled the door card and I have a blue connector on the door, but it only has one wire coming out of it, what am I miss, and what do I need to add?

 

Ok I've got everything I need, and in my prius v wagon, I was reading another that followed this write up, but wire colors are different for the v, anyone know which black wire I am supposed to use instead of the light green?