Toyota RAV4 (XA40) 2013-2018 Service Manual: Electronic control

- Removal and installation of battery
terminal
Notice:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.
- Before performing electronic work, disconnect
the cable from the negative (-) battery terminal to
prevent component and wire damage caused by
accidental short circuits.
- When disconnecting the cable, turn the ignition
switch off and headlight dimmer switch off
and loosen the cable nut completely. Perform
these operations without twisting or prying the
cable. Then disconnect the cable.
- Clock settings, radio settings, audio system
memory, dtcs and other data are erased when
the cable is disconnected from the negative (-)
battery terminal. Write down any necessary data
before disconnecting the cable.
- Handling of electronic parts

- Do not open the cover or case of the ecu
unless absolutely necessary. If the ic terminals
are touched, the ic may be rendered inoperative
by static electricity.
- Do not pull the wires when disconnecting
electronic connectors. Pull the connector.
- Be careful not to drop electronic components,
such as sensors or relays. If they are dropped
on a hard surface, they should be replaced.
- When cleaning the engine with steam, protect
the electronic components, air filter and
emission-related components from water.
- Never use an impact wrench to remove or install
temperature switches or temperature sensors.
- When measuring the resistance of a wire
connector, insert the tester probe carefully to
prevent terminals from bending.
The rav4 is equipped with a supplemental restraint
system (srs). The srs of this vehicle consists of the
following:
Steering pad
Front passenger airbag assembly
Front seat side airbag assemb ...
Place for removing and installing fuel
system parts
Work in a location with good air ventilation that
does not have welders, grinders, drills, electric
motors, stoves, or any other igni ...
Other materials:
Condenser
Components
On-vehicle inspection
Inspect cooler condenser assembly
If the fins of the cooler condenser are dirty, clean
them with water. Dry the fins with compressed air.
Notice:
Do not damage the fins of the condenser.
If a fin of the cooler condenser is bent, straighte ...
Ambient temperature sensor circuit
Description
The ambient temperature sensor is installed in the front part of the
condenser to detect the ambient
temperature and control the air conditioner. The sensor is connected to the
combination meter and
detects fluctuations in the ambient temperature. This data is used for
contr ...
Evaporator temperatur sensor
Removal
Remove air conditioning unit
Remove the air conditioning radiator (see page ac-
185).
Remove evaporator temperature sensor
(see page ac-193)
Inspection
Inspect evaporator temperature sensor
Measure the resistance of the sensor.
Standard resistance
No ...