Viper 160XV in 2001 Toyota 4Runner

[batook]

Trying to install Viper 160XV Remote Start in 2001 Toyota 4Runner SR5. No factory alarm.

1) Does the '01 4Runner have an immobilizer? I cannot get it to start with remote, it just cranks the starter but the engine never starts. In tach check mode, (menu option 2-2), it tries to start 3 times, then quits. Each start try is about 1 second of starter cranking. I tried setting it to "engine check off" mode (menu option 2-1), so that it would just crank the time set in menu option 2-5 (cranking time). I set the cranking time for the max (4 seconds), and it just cranked for 4 seconds and never started. Normally the car always starts after about 1 second of cranking with the key...so I think it must have an immobilizer. If so, which kind should I get, that will be compatible with the 160XV? Will I need to put a factory key in it? Is there one that just clips into the 160XV or is additional wiring required?

2) I can't find the brake light wire. The wiring information I have says that it is a green/white wire, at the switch above the brake pedal. I see at least 4 white/green or green/white wires there, none of them seemed to turn hot when brake pressed. It is EXTREMELY difficult for me to access these wires by the pedal, so if there is an alternative location where I can more easily access the wire to tap into it, please share. Otherwise, I need help locating the exact wire for the brake light if it can only be accessed in the cluster of wiring clips above the pedals.

Thanks for any help.

[batook]

I've had a chance to play around with it again and discovered more from my tests.
When I try to start the car with key in "OFF" position, it cranks but the engine doesn't start. But when I turn the key to "ON", it DOES start with remote. However, it doesn't matter if I use the black factory key or a key copy, it starts in the "ON" position either way. When the car starts, the 160XV keeps "clicking" on and off, like it still wants to keep trying to start, or doesn't "know" that the car has started. Since I'm using the tach wire, I would think the brain would recognize the engine is running and stop trying to start.

Is this a wiring problem, or is there something wrong with the brain?