Toyota RAV4 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:
Assist grips
An assist grip installed on the ceiling
can be used to support your
body while sitting on the seat.
Caution
Assist grip
Do not use the assist grip when getting in or out of the vehicle or
rising from
your seat.
Doing so could damage the assist grip, or could cause you to injure yourse ...
Ig power source circuit
Description
This is the main power source supplied to the air conditioning amplifier when
the ignition switch is on.
This power source is used for operating components, such as the air conditioning
amplifier and servo
motors.
Wiring diagram
Inspection procedure
Inspect fuse (ecu-i ...
Fuel pump control circuit
Description
When the engine is cranked, the starter relay drive signal output from the
star terminal of the ecm is
input into the sta terminal of the ecm, and ne signal generated by the
crankshaft position sensor is also
input into the ne+ terminal. Thus, the ecm interprets that the engine is ...