The ignition switch on a Toyota RAV4 is the first part of the ignition process. When the key is turned, the starter is signalled to turn over, which fires the engine. If the ignition switch fails, then the starter won't get the signal and the SUV won't be able to start. To fix the problem, you will have to remove the ignition switch from the RAV4 and replace it with a new one.
Open up the bonnet. Take off the negative battery terminal connection from the battery with the 3/8-inch ratchet and socket. Reach behind the backside of the steering wheel and remove the two Torx bolts holding the airbag to the wheel, using the Torx socket and a 3/8-inch ratchet. Pull the airbag off the wheel and unplug the harness. Store it with the vinyl side of the airbag up.
Remove the centre bolt on the steering wheel with the 1/2-inch ratchet and socket. Bolt the steering wheel puller to the wheel with the 3/8-inch ratchet and socket. Tighten the puller with the 1/2-inch ratchet and socket until the steering wheel comes off the column. Remove the upper and lower column covers, using the Phillips screwdriver.
Unscrew the multifunction switch from the side of the column with the Phillips screwdriver. Unplug the switch and set it to the side.
Cut a notch into the bolts holding the clamp on the ignition switch and lock cylinder using the rotary tool with a cut-off wheel. Make the notch large enough to fit a flathead screwdriver. Remove the screws using the flathead screwdriver, then take the clamp off the ignition switch and the lock cylinder. Unscrew the switch from the lock cylinder assembly using the Phillips screwdriver, then take the switch out of the RAV4.