SYSTEM DESCRIPTION
GENERAL
(a) The rear window defogger wire is attached to the inside of the rear window and defogs the window surface quickly when the rear window defogger switch is pressed. The indicator light on the switch illuminates while the system is operating. This system automatically turns off after approximately 15 minutes.
HINT:
NOTICE:
If the battery voltage becomes low, window defogger system operation is canceled to prioritize supplying power to the power steering system.
FUNCTION OF MAIN COMPONENTS
Component |
Outline |
---|---|
Air Conditioning Control Assembly |
Sends signals to the air conditioning amplifier assembly to operate the window defogger system. |
Air Conditioning Amplifier Assembly |
Sends a window defogger system activation request signal to the defogger relay. |
Defogger Relay |
Receives a window defogger system activation request signal from the air conditioning amplifier assembly and supplies power to the back door glass (rear window defogger wire). |
Back Door Glass (Rear Window Defogger Wire) |
Receives power from the defogger relay and heats the rear window using the back door glass (rear window defogger wire). |
Toyota CH-R Service Manual > Can Communication System: Open in One Side of Bus 3 Branch Line
DESCRIPTION
When the CAN bus main lines are normal (no open, short to ground, short to +B
or short between lines) and there is an ECU or sensor on the "Communication Bus
Check" screen that is indicated as not communicating or whose connection status
on the "Communication Bus Ch ...
Toyota CH-R Service Manual > Can Communication System: Check Bus 3 Line for Short to GND
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and GND when there
is no resistance between terminal 6 (CA3H) of the central gateway ECU (network gateway
ECU) and terminal 4 (CG) of the DLC3, or terminal 21 (CA3L) of the central gateway
ECU (network gateway ECU) and ...