Hint:
Past problems that seem unrelated may also help in some cases.

Operation flow
Symptom confirmation and diagnostic trouble codeInstallation
Install no. 2 Chain sub-assembly
Set the crankshaft key in the left horizontal position.
Turn the cutout of the drive shaft so that it faces
upward.
Align the yellow mark links with the timing marks of
each gear as shown in the illustration.
Install the sprockets onto ...
Removal
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 pretensioner activation.
Remove mass air flow meter
Disconnect the mass air flow meter connector.
...
When servicing active torque control 4wd vehicles
The active torque control 4wd rav4 is equipped
with the 4 wheel drive control system.
If incorrect preparations or test procedures are
used, the test will not only be unsuccessful, but may
be dangerous as well.
Caution:
Never accelerate or decelerate the vehicle
suddenly.
Obs ...