Toyota 84112-19645 Switch Assembly, Light Control

The headlight switch and rheostat are located in the left pod of the instrument cluster finish panel. To check the switch or rheostat, first disconnect the instrument cluster finish panel from the dash panel and pull it out to access the electrical connector. Disconnect the headlight switch electrical connector, then remove the large locknut by pulling the knob straight off and using a six-point, deep socket to take off the switch housing from the cluster finish panel. To check the light control switch, use an ohmmeter to verify continuity between terminals; if continuity is not as specified, replace the switch. For the light control rheostat, measure the resistance between terminals 1 and 9 while gradually changing the brightness from maximum to minimum, ensuring the resistance increases from 0 to 4.5 ohms; if it does not, replace the switch. Installation follows the reverse order of removal.

Remove the six screws that hold the upper and lower steering column cover halves together, then split the covers and remove them from the steering column assembly.