Wake-Up and Sleep Function

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

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).

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), 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 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.

NOTE: See SLEEP AND WAKE-UP MODE TEST .