Senin, 16 Mei 2011

How to Replace a 1993 Toyota T100 Ignition Switch

How to Replace a 1993 Toyota T100 Ignition Switch

A bad ignition switch will make it difficult for electrical power to reach the starter solenoid on your 1993 Toyota T100, or it will cut power once the engine has started. You can easily fix the problem by replacing the ignition switch. The steps outlined here will help you remove the switch, whether your model is equipped with an air-bag system or not.

Difficulty:
Moderate

Instructions

things you'll need:

  • Wrench
  • Phillips screwdriver
  • Torx driver, if necessary
  • Correction fluid
  • Ratchet and socket
  • Snap ring pliers, if necessary
  • Steering wheel puller
    • 1

      Turn the ignition key to the "On" position, but don't start the engine.

    • 2

      Turn the steering wheel so that the front wheels are pointing straight ahead.

    • 3

      Turn the ignition key to the "Off" or "Lock" position.

    • 4

      Detach the ground battery cable using a wrench.

    • 5

      Wait at least 90 seconds for the system to disarm if your Toyota T100 is equipped with an air-bag system.

    • 6

      Take the upper and lower steering column covers off, using a Phillips screwdriver.

    • 7

      Remove the steering wheel center pad. Look at the back of the steering wheel for recess screws, and unscrew the pad using the Phillips screwdriver. If there are no screws, simply pull the pad off with your fingers. If your Toyota is equipped with an air-bag system, remove the Torx screw on the right side and the left side of the steering wheel. Use a Torx driver to turn each screw counterclockwise until the head of the screw catches on the screw case. Then pull the center pad out, and unplug the bag electrical connector. Place the center pad on the seat with the pad cover facing up.

    • 8

      Use correction fluid to matchmark the steering wheel hub and the steering column shaft for alignment during reinstallation.

    • 9

      Detach the steering wheel from the steering column by removing the center nut with a ratchet and socket.

    • 10

      Use a pair of snap ring pliers to remove the center snap ring if your Toyota is equipped with one.

    • 11

      Detach the steering wheel from the steering wheel column using a steering wheel puller.

    • 12

      Locate the left and right combination switches. Each switch has a lever. One switch controls the headlights and dimmer; the other controls the wipers and washer. Use a Phillips screwdriver to unscrew the upper and lower screw on each switch to remove the switches.

    • 13

      Unplug the ignition switch electrical connector.

    • 14

      Unscrew the single mounting bolt from the ignition switch using the Phillips screwdriver, and remove the switch from the steering column.

    • 15

      Place the new ignition switch into position, and tighten the single mounting bolt with the Phillips screwdriver.

    • 16

      Plug in the ignition switch electrical connector.

    • 17

      In reverse order of removal, and using the same tools as above, reinstall the left and right combination switches, the steering wheel (following the matchmarks), the center snap ring (if so equipped), the steering wheel column center nut, the steering wheel center pad and the upper and lower steering column covers.

    • 18

      Using the wrench, reconnect the ground battery cable.

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