Toyota 84119-52030
Instrument Light Rheostat, Passenger Side

The removal process for the headlamp dimmer switch starts with a 90-second period of disconnecting the negative battery cable to stop Air Bag deployment. You must first ensure front wheel alignment before removing the steering pad then steering wheel assembly together with the steering column cover. Next, remove the spiral cable. Users should disconnect the 2 connectors from the wiper switch before using a screwdriver with taped tip to carefully disengage the claw that removes the wiper switch without damaging the claw. Disassembling the headlight dimmer switch involves disconnecting its connector followed by illustration-driven removal of the unit while disengaging its 2 claws to finalize the process.

The first task for removing the headlamp dimmer switch requires disconnecting the negative battery cable while allowing at least 90 seconds to elapse before proceeding to avoid Air Bag deployment. Position the front wheels in a straight direction before beginning work. The first step involves removing the steering pad after which you must take off the steering wheel assembly before removing the steering column cover. Then, remove the spiral cable. The process requires disconnecting the two connectors from the wiper switch through the use of a screwdriver with taped tip to separate the claw from the wiper switch with no claw harm. After detaching the connector from the dimmer switch headlight terminate the switch removal by following the provided illustration and releasing the two claws.

Removing the headlight dimmer switch starts with disconnecting the cable from the negative battery terminal followed by a 90-second delay to avoid Air Bag deployment. Front wheels must be set in a direct alignment. Take off the steering pad as the first step before proceeding to remove the steering wheel assembly and finally the steering column cover. The spiral cable should be the next item to remove from the device. Users should disconnect the two connectors before using a screwdriver with taped tip while dislodging the claw from the wiper switch to prevent switch damage through careful pressure application. The final step involves disconnecting the connector from the headlight dimmer switch yet removing it while following the illustration while dislodging the two claws to finalize the uninstallation process.

Start servicing the headlamp dimmer switch after you disconnect and wait at least 90 seconds on the negative battery cable because this prevents the activation of Air Bags and seat belt pretensioners. The headlamp dimmer switch service requires removal of the following components: steering wheel cover lower No. 2 and No. 3, steering pad assembly, steering wheel assembly, steering column cover, spiral cable sub-assembly and wiper and washer switch assembly. To remove the headlight dimmer switch assembly disconnect the connectors then take off the band clamp before separating the claws. The procedure for installing the headlight dimmer switch assembly consists of setting its recessed section toward the steering column shaft and fastening it with band clamp and claw before reattaching all connectors. To complete this procedure refit the wiper and washer switch assembly followed by the spiral cable sub-assembly together with the steering column cover. The adjustment of the spiral cable sub-assembly should follow center point inspection with both steering wheel assembly and steering pad assembly reinstallation. The procedure ends with installing lower cover No. 2 and No. 3 followed by reconnecting the cable to the negative battery terminal then inspecting the steering pad assembly while checking the SRS warning light and performing system initialization which becomes essential when disconnecting and reconnection of the negative battery terminal cable occurs.

One must start by disconnecting the negative battery terminal cable before waiting 90 seconds to avoid deploying the Air Bag during service of the headlight dimmer switch. First position the front wheels directly ahead before you remove the steering pad and then the steering wheel assembly for hatchback and sedan models together with the steering column cover. The wiper switch removal requires disconnecting its cable connectors followed by using a screwdriver with taped-tip to loosen the claw from the wiper switch. You should disconnect the connector attached to the headlight dimmer switch before disengaging the two claws to perform removal. You install the headlight dimmer switch by connecting its connector after you fit the clamp with the two claws. After securing the wiper switch claw you must connect its two connectors. Install the spiral cable before adding the steering column cover that suits hatchback or sedan models followed by spiral cable adjustment and installation of the steering wheel according to each model. The last step involves putting on the steering pad together with reattaching the cable into the negative battery terminal using 5.4 N.m (55 kgf.cm, 48 in.lbf) torque before identifying the SRS warning light status.

Proceed to install the spiral cable, followed by the steering column cover.

Disengage the claw without damaging it.

The front wheels should be positioned straight ahead.

Engage the 2 claws and secure it in place, then attach it with the clamp and connect the connector.

Connect the cable to the negative battery terminal with a torque of 5.4 Nm (55 kgf-cm, 48 in-lbf).

Adjust the spiral cable as necessary.

Remove the band clamp, detach the claws, and take out the headlight dimmer switch.

Inspect the steering wheel center point.

Disconnect the connectors of the headlight dimmer switch assembly, remove the band clamp, detach the claws, and take out the headlight dimmer switch.

Remove the spiral cable.

Remove the steering pad.

Engage the 2 claws to install the light control rheostat.

Remove the instrument panel box.