Toyota RAV4 (XA40) 2013-2018 Service Manual: Precaution
- Tire pressure warning system precaution

- When the tire pressure warning light turns on,
immediately check the tire pressure of the tire and
adjust it to the specified value. (When the tire
pressure warning light circuit is open, the tire
pressure warning light flashes for 1 minute and then
illuminates.)
Notice:
Check the spare tire as well since this system
monitors the pressure of all tires.
Standard pressure:
220 kpa (2.2 Kgf/cm2, 32 psi)
- When the tire pressure warning light blinks, there is
a malfunction in the system. Check for dtcs.
- It is necessary to register the transmitter id in the
tire pressure warning ecu after replacing the tire
pressure warning valve and transmitter and/or tire
pressure warning ecu (see page tw-9).
- When replacing the tire pressure warning ecu:
- Using the data list, read the transmitter ids
registered in the ecu and make a note of them
before removing the tire pressure warning ecu.
- Register the transmitter ids after installing a new
tire pressure warning ecu.

- When replacing the tire pressure warning valve and
transmitter:
- Take a note of the 7 digit number (transmitter id)
written on the tire pressure warning valve and
transmitter when replacing it. Register the
transmitter ids in the tire pressure warning ecu
after replacing the tire pressure warning valve
and transmitter and installing the tires and
wheels on the vehicle.
Notice:
The transmitter id written on the tire
pressure warning valve and transmitter will
be unable to be read after installing it on the
tire and wheel.
- In case of tire and wheel replacement
- When tires and wheels are replaced, always be sure
to register the transmitter id correctly.
- Fail-safe function
- When a system malfunction occurs in the tire
pressure warning system, the tire pressure warning
light blinks and informs the driver of the system
failure.
- The result of this diagnosis is stored in the tire
pressure warning ecu.
- Precautions about the tire pressure:
- The tire pressure decreases naturally.
- In winter, tire pressure may decrease due to low
ambient temperature (tire pressure decreases by
approximately 10 kpa (0.2 Kgf/cm2, 1.45 Psi) for
every 10°c (50°f) drop in the ambient
temperature).
Therefore, the tire pressure warning is more
likely to operate if the tire pressure are not
adjusted appropriately.
If the daily temperature variation is large, adjust
the tires to a higher pressure suitable to cold
conditions.
This will reduce the likelihood of an incorrect tire
pressure warning operation.
Other materials:
Pressure control solenoid "A " performance (shift solenoid valve sl1)
Description
The ecm uses signals from the vehicle speed sensor to detect the actual gear
position (1st, 2nd, 3rd or
o/d gear).
Then the ecm compares the actual gear with the shift schedule in the ecm memory
to detect mechanical
problems of the shift solenoid valves, valve body or automatic ...
Ecm / pcm internal engine off timer performance
Dtc summary
Description
To ensure the accuracy of the evap (evaporative emission) monitor values, the
soak timer, which is built
into the ecm, measures 5 hours (+-15 minutes) from when the ignition switch is
turned off, before the
monitor is run. This allows the fuel to cool down, wh ...
Only driver door lock / unlock functions do not operate
Description
The main body ecu receives lock / unlock switch signals and activates the
door lock motor accordingly.
Wiring diagram
Inspection procedure
Perform active test by intelligent tester (door lock)
Select the active test, use the intelligent tester to
generate a control c ...