This service manual details the construction, operation, and components of the Toyota Keyless Operation System (KOS), including door entry, engine start…
This document provides technical information for the Toyota Keyless Operation System (KOS), also referred to as F.A.S.T.-key. It describes the integrated system functions, including door entry, keyless entry, engine starting, and the Tire Pressure Monitoring System (TPMS). The manual outlines how the system allows drivers to lock/unlock doors and start the engine without using a physical key, provided a registered keyless operation key is present.
| Number of registered keys | up to four keyless operation keys |
|---|---|
| Key features | lock/unlock button and panic button |
| Immobilizer function | inhibits engine startup by unauthorized key |
The unlock sensors in the front door outside handles unlock the doors when a driver carrying the keyless operation key pulls the handle.
The system includes the door entry function, engine start function, and tire pressure monitoring system.
Up to four keyless operation keys can be registered in the vehicle's KOS-ECU.