Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - THEFT DETERRENT / KEYLESS ENTRY
ENGINE IMMOBILISER SYSTEM (w/ Entry and Start System) - SYSTEM DIAGRAM
| Transmitting ECU (Transmitter) | Receiving ECU (Receiver) | Signals | Communication Method |
| Certification ECU | Main body ECU | Double lock fail-safe unset signal Security indicator light flash signal Security indicator light illumination signal Engine immobiliser system set/unset signal | LIN |
Engine start signal Transponder valid signal Steering unlock demand signal Steering lock demand signal | |||
| Main body ECU | Certification ECU | Key code recognition signal Engine start operation signal ACC relay activation signal IG relay activation signal | |
| ID code box | Certification ECU | Matching request random number signal EFI code reception signal Engine start permission demand reception signal S code verification result signal L code verification result signal Steering unlock demand reception signal Steering lock demand reception signal | |
| Steering lock ECU | Steering lock release signal Matching request random number signal | ||
| Steering lock ECU | Certification ECU | L code verification signal |