FRS - CAN & IMMO

[monya]

 wire in xtreme g4x in to my 16frs with k24, and ide like to get the immobilizer working, i have imo wire from car going to a digital input, but wasnt able to make it function, car still starts without non chipped key, so im not sure what els that it needs, is the immo sent through CAN as well ?

im also looking to get CAN set up to get dash/ac working,  any info to share would be appreciated 

 

[Laminar]

Post your tune.

You can message the user here to see if he's willing to share his CAN data:

 

[monya]

latest drive.pclx

[Laminar]

Chassis and Body > Anti Theft has no digital input configured as the anti-theft input and "Allow CAN Anti-Theft request" is also turned off.

Are you going from a generic switch that you installed? If you're running an existing factory Toyota wire to a Link DI, it would have to be a simple 12V/gnd signal that permits startup when the immobilizer is satisfied, which isn't how the factory system works.

[monya]

i turned it off, since i couldn't get it working, its been w while since i messed with it, about finished wit the car so just trying to sort out the last few things, i am trying to use the factory system,, 

[Laminar]

What is the "imo wire from car"? Do you have a wiring diagram showing that wire or a description of its function from the factory service manual?

[monya]

im assuming its the immobilizer signal as its part of the keyless entry system 

[Vaughan]

The Imo pin has single wire serial communications on it and we found under our testing with a key start 86 and a push start BRZ that you don't need to do anything on that pin to have the immobiliser light not show up.

In terms of utilising the factory immobiliser you would need to decode how that serial communication works.

There is no antitheft signal setup in the Link CAN

[monya]

1 hour ago, Vaughan said:

The Imo pin has single wire serial communications on it and we found under our testing with a key start 86 and a push start BRZ that you don't need to do anything on that pin to have the immobiliser light not show up.

In terms of utilising the factory immobiliser you would need to decode how that serial communication works.

There is no antitheft signal setup in the Link CAN

thanks for the reply,, answers most of my questions,  my light does not show up. but i was hoping to utilize the factory immo system, i started working on a arduino binary sniffer for sniffing the serial transmission, not to sure how well its gonna work but ima give it a try, in the case i do get the proper serial data, is there even a way i could use it in logic or something ? 

[Vaughan]

If you get the serial data working you could hook it up to a digital input into the ECU or over CAN just as a yes/no for ECU Antitheft and you could also integrate it into the starter control.

That is assuming arduino doing the talking over serial and then sending a yes/no to the ECU

[monya]

yeah i wasnt really planning on using an adruino in the imo system,, just was going to use it to sniff the line, seems counterintuitive to wire in a arduino, probably make it easier to bypass if it was found, ill probably just have to set some logic up on some buttons seems like alot less hassle