Toyota 84052-71010 Switch Assy, Un-Lock Warning

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Disconnect the cable from the negative battery terminal. Place the ignition key in the ACC position. Remove the steering wheel. Remove the steering column covers. Remove the steering column switches. Unplug the ignition switch wiring harness connector and key light connector (if equipped). Remove the interlock solenoid mounting screws and disengage the ignition switch mounting clips, then pull the switch from the housing. Installation is reverse of removal. Carefully pry the transponder key amplifier switch mounting clips outwards and slide the transponder forward to detach it and the bracket from the steering column. Turn the ignition switch to ON (ACC). Use a small screwdriver or punch inserted into the hole in the top of the steering column bracket to depress the locking claw and pull the Ignition Lock Cylinder out until its claw comes into contact with the stopper of the steering column bracket. Insert the tip of a screwdriver into the hole inside of the steering column bracket and tilt it downward to disengage the claw. Pull the Ignition Lock Cylinder out. The remainder of installation is the reverse of removal. After replacing the steering lock actuator assembly, perform the key ID code registration by opening and closing the driver's door. The engine may not start until the driver's door has been opened and closed. Remove the steering column and place the column in a soft jaw vise. Using a grinder or small hacksaw blade, cut a slot into the steering lock shear bolt heads. Use a screwdriver to back the bolts out and remove the actuator. Install the steering lock actuator and steering column clamp with new steering lock shear-head bolts, then tighten the bolts until their heads break off.

Disconnect the cable from the negative terminal of the battery, then remove the left-side under-dash panel. Next, remove the headlight/turn signal switch and unplug the electrical connectors from the rear of the ignition switch. Disengage the two mounting clips and detach the switch from the lock cylinder housing, with installation being the reverse of removal. For the lock cylinder, use a small screwdriver to push the locking tabs outwards on the transponder key amplifier or the key light assembly, then slide the unit off the end of the key ignition lock cylinder housing. Insert the ignition key and turn it to the ACC position, then insert a small screwdriver into the hole in the bottom of the ignition switch casting and press the release button while pulling the lock cylinder straight out, with installation again being the reverse of removal.

Installation is the reverse of removal.

Disengage the two mounting clips and detach the switch from the lock cylinder housing.

17. Remove the steering column by following the general steering column repair procedures in Section 8. Place the steering column shaft in a soft-jaw vise and tighten firmly without crushing or damaging it. 18. Use a center punch to mark the center of the tapered-head bolts. 19. Use a 3 or 4 mm drill bit to drill a hole in the center of the bolt. 20. Using a screw extractor that fits into the hole, turn the bolt counterclockwise to remove it. 21. Install the steering lock actuator and steering column clamp with new shear bolts, then tighten the bolts until their heads break off.

Disconnect the electrical connector from the ignition switch.

1. Remove the fusebox lid and push out the switch panel from behind. 2. Disconnect the wiring plug(s) from the back of the switch panel and withdraw the assembly from the facia. 3. Push the beam adjuster switch backwards out of the panel and remove it. 4. Refitting is a reversal of removal.