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 to LOCK (0), or the vehicle ignition in the OFF mode

• In the sleep mode, the multiplex integrated control system stops functioning (communication and CPU control) when 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 the 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 about 40 seconds before the control unit goes from the wake-up mode to the sleep mode
• The sleep mode will not function if any door is opened or if a key is in the ignition
• The draw is reduced from 200 mA to less than 35 mA when in the sleep mode