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2021 Toyota Tundra H Key, Evo-One, Toy2 Harness


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97f150ext 
Copper - Posts: 104
Copper spacespace
Joined: January 17, 2004
Location: United States
Posted: December 18, 2021 at 9:20 AM / IP Logged Link to Post Post Reply Quote 97f150ext
2021 Toyota Tundra. H-Key (standard key). Eco-One with Toy 2 harness, remainder wire to wire. Module shows programmed through LEd flashes. After hitting lock 3x, truck kicks on ignition, then cranks, but no start. Security key light flashes on dash during remote start attempt. My guess is immobilizer isn’t programming. I’ve verified wiring, and reprogrammed twice.
Any suggestions? Truck is in my garage now.
97f150ext 
Copper - Posts: 104
Copper spacespace
Joined: January 17, 2004
Location: United States
Posted: December 18, 2021 at 10:47 AM / IP Logged Link to Post Post Reply Quote 97f150ext
So, figured it out.
I verified the wire to wire portion, of which I installed.
The stupid T Harness was wired incorrectly. Figured that out, moved the wires to the correct spot, and everything works.

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