Description of Keyless Start System Parts and Functions
WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
KEYLESS START SYSTEM PARTS AND FUNCTIONS
| Parts |
Function |
| Keyless start control module |
- Activates each antenna
- Verifies ID code of remote controller
- Requests steering lock unit to release steering lock
- Requests BCM to lock or unlock doors
- Requests BCM to open trunk lid (Sedan)
- Controls key indicator light in combination meter
- Transmits its ID code to ECM
|
| Remote controller |
- Receives request signal from each antenna
- Transmits ID code and request signal to keyless start control module
- Request keyless start control module to lock or unlock doors (keyless entry system function)
|
| Request switch |
- Requests keyless start control module to activate each antenna
|
| Center antenna |
- Transmits request signal to remote controller
|
| Luggage room/trunk room antenna |
- Transmits request signal to remote controller
|
| Driver side door antenna |
- Transmits request signal to remote controller
|
| Passenger side door antenna |
- Transmits request signal to remote controller
|
| Rear end door/trunk lid antenna |
- Transmits request signal to remote controller
|
| Steering lock unit |
|
| Unlock button |
- Transmits door unlock request signal (keyless entry system function)
|
| Lock button |
- Transmits door lock request signal (keyless entry system function)
|
| BCM |
- Controls each door lock actuator
- Controls trunk lid opener actuator (Sedan)
- Controls warning buzzer
- Lights hazard warning light and interior (DOME) light (answer back)
|
| Key indicator light |
- Indicates operation state of keyless start system (indicates check result of remote controller ID code)
|
| ECM |
- Checks keyless start control module ID code
- Transmits its ID code to keyless start control module
- Starts engine
|