Toyota RAV4 (XA40) 2013-2018 Service Manual: Air conditioning control panel does not operate
Description
This circuit consists of the air conditioning control and the air conditioning amplifier. When the air conditioning control is operated, signals are transmitted to the air conditioning amplifier through the lin communication system.
If the lin communication system malfunctions, the air conditioning amplifier does not operate even if the air conditioning control is operated.
Wiring diagram
Inspection procedure
- Check wire harness (air conditioning control assembly - body ground)
- Disconnect the air conditioning control assembly connector.
- measure the resistance of the wire harness side connector.
Standard resistance
- Check wire harness (air conditioning control assembly - battery)
- Disconnect the e23 air conditioning control assembly connector.
- Measure the voltage of the wire harness side connector.
Standard voltage
- Check wire harness (air conditioning amplifier - air conditioning control)
- Disconnect the e23 control connector.
- Disconnect the e37 amplifier connector.
- Measure the resistance of the wire harness side connectors.
Standard resistance
- Replace air conditioning amplifier
- Replace the air conditioning control with a new or properly functioning one.
- Operate the air conditioning control to check that it functions properly.
Replace air conditioning amplifier
Multiplex communication circuit
Description
The air conditioning amplifier communicates data with the ecm and combination
meter through the can
communication system.
Wiring diagram
Inspection procedure
Check dt ...
Blower motor circuit
Description
The blower motor is operated by signals from the air conditioning amplifier.
Blower motor speed signals
are transmitted in accordance with changes in the duty ratio.
Wiring diagra ...
Other materials:
Operating the interior
lights
â– Front interior lights
Turns the lights on/off
Turns the switch to the door
position (door linked)
When a door is opened while the
door position is on, the lights turn
on.
Turns the door position on
Turns the lights off
â– Rear interior light
Turns the light on
Turns the door-linked fu ...
Disassembly
Remove no. 3 Heater to register duct
Detach the 6 claws and remove the heater to
register duct.
Remove air duct
Detach the 2 claws and remove the air duct.
Remove air outlet control servo motor
Remove the 3 screws.
Detach the evaporator case from the ...
Headlight switch
The headlights can be operated
manually or automatically.
Turning on the headlights
Operating the switch
turns on the lights as follows:
U.S.A. (Type A)
The side marker, parking,
tail, license plate, instrument
panel lights, and
daytime running lights turn on.
The headlights and all
light ...
