Vehicle Interior. Corolla. Zre142 Aze141
Theft Deterrent Keyless Entry. Corolla. Zre142 Aze141
Engine Immobiliser System (W/ Smart Key System) -- System Diagram |
| Transmitting ECU (Transmitter) | Receiving ECU (Receiver) | Signal | Communication Method |
| Steering lock ECU |
| Steering lock request signal | LIN |
| Steering unlock signal | |||
| Steering lock confirmation signal | |||
| Steering unlock confirmation signal | |||
| Diagnosis response signal | |||
| Steering unlock drive relay signal | |||
| Steering lock drive relay signal | |||
| Steering lock motor operation signal | |||
| ID code box (Immobiliser Code ECU) | Certification ECU (Smart Key ECU Assembly) | Matching request random number signal | LIN |
| EEPROM access malfunction signal | |||
| Model code matching signal | |||
| Model code mismatching signal | |||
| ECM code receiving status signal | |||
| Engine start permission request signal | |||
| Engine start permission response signal | |||
| S code matching result signal | |||
| S code registration status signal | |||
| S code registration mode signal | |||
| L code matching result signal | |||
| ECM communication signal | |||
| Registered key number response signal | |||
| Diagnosis mode switching signal | |||
| DTC (B2791) signal | |||
| Registered key number signal | |||
| ID code box (Immobiliser Code ECU) | Steering lock ECU | Steering lock release signal | LIN |
| Matching request random number signal | |||
| Certification ECU (Smart Key ECU Assembly) | ID code box (Immobiliser Code ECU) | 3 bit code request signal | LIN |
| ID code matching result signal | |||
| Registered key number signal | |||
| Vehicle type handle signal | |||
| Certification ECU (Smart Key ECU Assembly) |
| L code registration mode signal | LIN |
| Diagnosis mode request signal | |||
| DTC clear request signal | |||
| L code registration status signal | |||
| Main body ECU (Instrument panel junction block) | Certification ECU (Smart Key ECU Assembly) | Key code recognition signal | LIN |