Load Disconnection

The BCU supplies various electrical loads on the vehicle, such as the glovebox lamp, reading lamps, luggage compartment lamps, etc., that can be switched on and remain on when the vehicle is parked. A central load disconnection feature in the BCU ensures the battery is not discharged in the event these loads are switched on continuously. The trigger time after the ignition is switched off is 16 minutes and is independent of the sleep mode timer.

The BCU also disconnects the following loads while the engine cranks, to maximize the available power from the battery:

• Wipers
• Washer pump
• Headlamp cleaning
• Window regulators
• Sunroof.

If the one-touch function of a window or sunroof is active before the load disconnection, the function is not continued when engine cranking stops.