FUNCTION OF MAIN COMPONENTS
| Component | Function |
|---|---|
| Main Body ECU (Multiplex Network Body ECU) | Receives various signals and illuminates the daytime running lights. |
| Semiconductor PWR Integration ECU | Supplies power to the daytime running lights. |
| Headlight Dimmer Switch Assembly
|
Outputs a light control switch position signal to the main body ECU (multiplex network body ECU). |
| ECM | Outputs an engine speed signal to the main body ECU (multiplex network body ECU). |
| Parking Brake Switch Assembly | Outputs a parking brake operation signal to the main body ECU (multiplex network body ECU). |
| Ignition or Starter Switch Assembly*1 | Outputs an ignition switch ON signal to the main body ECU (multiplex network body ECU). |
| Certification ECU (Smart Key ECU Assembly)*2 | Outputs an ignition switch ON signal to the main body ECU (multiplex network body ECU). |
*1: Models without smart entry and start system
*2: Models with smart entry and start system
SYSTEM CONTROL
The daytime running lights illuminate when the following conditions are met.
The ignition switch is ON.
An engine speed signal is input (engine is running).
The light control switch is in the off or AUTO position (and the taillights are not turned on via the automatic light control system).
The parking brake switch assembly is off.