Toyota RAV4 (XA40) 2013-2018 Service Manual: On-vehicle inspection
Notice:
- Perform the maf meter inspection according to the
procedures below.
- Only replace the maf meter when both the long
ft#1 value and maf value in the data list (with the
engine stopped) are not within the normal operating
range.
- Inspect mass air flow meter

- Perform confirmation driving pattern.
- Connect the intelligent tester to the dlc3.
- Turn the ignition switch on.
- Turn the tester on.
- Clear the dtcs (see page es-35).
- Start the engine and warm it up with all
accessory switches off until the engine
coolant temperature is 75°c (167°f) or more.
- Drive the vehicle at 50 km/h (31 mph) or more
for 3 to 5 minutes*1.
- Allow the engine to idle for 2 minutes*2.
- Perform steps *1 and *2 at least 3 times.

- Read the value using the intelligent tester (long
ft#1).
- Select the following menu items: diagnosis /
enhanced obd ii / data list / primary /
long ft#1.
- Read the values displayed on the tester.
Standard value:
within -15 to +15%
If the result is not within the specified range,
perform the inspection below.
- Read the value using the intelligent tester (maf).
Notice:
- Turn off the engine.
- Perform the inspection with the vehicle
indoors and on a level surface.
- Perform the inspection of the maf meter
while it is installed to the air cleaner case
(installed to the vehicle).
- During the test, do not use the exhaust air
duct to perform suction on the exhaust pipe.
- Turn the ignition switch to acc.
- Turn the ignition switch on (do not run the
engine).
- Turn the tester on.
- Select the following menu items: diagnosis /
enhanced obd ii / data list / primary /
maf.
- Wait 30 seconds, and read the values on the
intelligent tester.
Standard condition:
less than 0.45 G/sec.
- If the result is not as specified, replace the
maf meter.
- If the result is within the specified range,
inspect the cause of the extremely rich or
lean air-fuel ratio (see page es-147).
Disconnect cable from negative battery terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensi ...
Other materials:
Rear occupant classification sensor lh circuit malfunction
Description
The rear occupant classification sensor lh circuit consists of the occupant
classification ecu and the rear
occupant classification sensor lh.
Dtc b1782 is recorded when a malfunction is detected in the rear occupant
classification sensor lh
circuit.
Wiring diagram
...
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 may be inaccurate if measured
at high temperatures, i.E. Immediately after the
vehicle has been r ...
Installation
Install engine coolant temperature
sensor
Install a new gasket onto the sensor.
Using sst, install the sensor.
Sst 09817-33190
torque: 19.6 N*m (200 kgf*cm, 14 ft.*Lbf)
Connect the sensor connector.
Install air cleaner case (see page es-431)
Install air cleaner cap ( ...