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:
Evaporative emission control system incorrect purge flow
Dtc summary
Description
The description can be found in the evap (evaporative emission) system (see
page es-335).
Inspection procedure
Refer to the evap system (see page es-340).
Monitor description
The two monitors, key-off and purge flow, are used to detect malfunctions
relating ...
Smart key system
The following operations
can be performed simply by
carrying the electronic key
on your person, for example
in your pocket. The driver
should always carry the
electronic key.
Locks and unlocks the side
doors
Locks and unlocks the back
door
Starts the engine
â– Antenna location
Antennas ou ...
Reassembly
Hint:
Thoroughly clean all parts to be assembled.
Before installing the parts, apply fresh engine oil to all
sliding and rotating surfaces.
Replace oil seals with new ones.
Install valve stem oil seal
Using sst, push in a new oil seal.
Sst 09201-41020
Hint:
The int ...
