Wake-Up and Sleep Function

The multiplex integrated control system has wake-up and sleep functions to decrease parasitic draw on the battery when the ignition switch is turned to LOCK (0), or the vehicle ignition is in the OFF mode.

• In the sleep mode, the multiplex integrated control system stops functioning (communication and CPU control) whenever it is not necessary for the system to operate.
• As soon as any operation is requested (for example, a door is unlocked), the related control units in sleep mode immediately wake up and begin to function.
• When the ignition switch is turned to LOCK(0), or the engine start/stop button is pressed to select the OFF mode, and the driver's door is opened, then closed, there is a delay of about 40 seconds before the control unit goes from the wake-up mode to sleep mode.
• The sleep mode function will not occur if any door is open, or if a key is in the ignition switch.