Toyota RAV4 (XA40) 2013-2018 Service Manual: Electronic circuit inspection procedure
Circuit inspection
A description of the main areas of each circuit inspection
is below.
Item
Description
description
The major role, operation of the circuit and its component parts are
explai ...
Basic inspection
When measuring resistance of
electronic parts
Unless otherwise stated, all resistance
measurements should be made at an ambient
temperature of 20°c (68°f). Resistance
measurements m ...
Other materials:
Using the steering
wheel switches
The steering wheel switches can be used to operate a connected
cellular phone.
Operating a telephone using the steering wheel switches
Volume switch
Increase/decrease the volume
Press and hold:
continuously increase/
decrease the volume
Enter switch
Select an item
...
Blower motor circuit
Description
When the heater control (blower switch) is set to position 1 or higher, the
contact of the htr relay is
closed, current flows to the blower motor, and the blower motor operates. The
blower motor speed can be
changed by exchanging the ground and the blower resistor circuit with the ...
Precaution
Check that the battery cables are connected to the
correct terminals.
Disconnect the battery cables if a quick charge is
given to the battery.
Do not perform tests with a high voltage insulation
resistance tester.
Never disconnect the battery while the engine is
running.
Check tha ...
