Oldsmobile 1997988 Switch,Turn Signal

Disconnect the negative battery cable and remove the steering wheel. Next, take off the steering column trim cover located at the base of the dashboard. For late models, pry out the plastic cover plate at the end of the steering column using a screwdriver in the provided slots. Remove the lock plate from the steering column, which is held in place by a snap ring fitting into a groove in the steering shaft; depress the lock plate to relieve pressure on the snap ring, using a special U-shaped tool to assist in this process. Slide off the cancelling cam, upper bearing preload spring, and thrust washer from the end of the shaft. Remove the turn signal lever attaching screw and withdraw the lever from the side of the column. Push in on the hazard warning knob and unscrew it from the threaded shaft. Remove the three mounting screws for the turn signal assembly and pull the switch wiring connector out of the bracket on the steering column jacket, taping the connector terminals to prevent damage. Feed the wiring connector up through the column support bracket and pull the switch, wiring harness, and connectors out the top of the steering column. For installation, reverse the removal steps, ensuring the wiring harness is in the protector as it is positioned. Before installing the thrust washer, upper bearing preload spring, and cancelling cam, confirm that the switch is in the neutral position and the warning knob is pulled out, and always use a new snap ring on the shaft for the lock plate.

Pull the switch knob to the last notch and depress the spring-loaded latch button on top of the switch while pulling the knob and rod out of the switch.

Remove the headlight switch knob and escutcheon, the left I/P trim plate, and the two retaining screws, then remove the switch.

To disconnect the negative battery cable, you need to remove the instrument panel bezel and the headlight switch ferrule nut.

Remove the screws securing the headlight switch in place. Disconnect the multiple electrical harness from the switch, and remove.

To reinstall the negative battery cable, you should follow the reverse order of the removal procedure.

Disconnect the negative battery cable, disconnect the turn signal electrical harness at the base of the steering column jacket, remove the wiring protector on the bottom of the column to ease the wiring harness removal.

Insert a screwdriver into the cover slot and pry it out at two slots to prevent breakage.

Install the wiring protector and bracket, tightening the bracket bolts to 18 ft. lbs. (24 Nm) and the nuts to 24 ft. lbs. (32 Nm).

Remove the lock cylinder retaining screw, turn the key to the ON position, and withdraw it from the steering column.

It is important to disable the anti-theft feature on models equipped with an anti-theft audio system before disconnecting the battery or disrupting power to the stereo.

Attach a length of wire to the pigtail for easier installation, then pull the lever straight out of the steering column.

To remove the headlight dimmer switch on 1988 through 1994 models, you should remove the steering column support bracket bolts and nuts, lower the steering column, disconnect the dimmer switch electrical connector, and remove the retaining bolts.

To remove and install the ignition switch on 1988 through 1994 models, disconnect the negative battery cable, place the ignition switch in the Lock position, and lower the steering column. Remove the ignition switch retaining screws, lift the switch out, and reconnect the actuating rod before reinstalling it.

After disconnecting the battery ground cable, pull the headlamp control knob to the 'ON' position.

To remove and install the ignition switch on 1988 through 1994 models, disconnect the negative battery cable, place the ignition switch in the Lock position, and lower the steering column. Remove the ignition switch retaining screws, lift the switch out, and reconnect the actuating rod before reinstalling it.

Push in on the hazard warning knob and unscrew it from the threaded shaft.

The instrument panel pad is held in place by six screws, which need to be removed. In some models, it may also be necessary to remove the left radio speaker and set it aside.

To remove and install the ignition switch on 1988 through 1994 models, disconnect the negative battery cable, place the ignition switch in the Lock position, and lower the steering column. Remove the ignition switch retaining screws, lift the switch out, and reconnect the actuating rod before reinstalling it.

The procedure for dealing with the park/neutral switch/back-up light switch for automatic transmission on 1988 through 1994 models should be included in your question as it is not present in the provided text.

To work with the windshield wiper/washer switch on 1988 through 1994 models, remove the steering wheel, compress the locking plate, remove the clip retaining it to the steering column, and proceed with the disassembly steps. Disconnect the handle from the windshield wiper switch and drive the pin through the switch housing to remove it. Reinstallation is the reverse of removal.

Start by disconnecting the negative cable at the battery.

Remove the lever attaching screw, unscrew the hazard warning knob, and take out the three mounting screws. Disconnect the turn signal switch wiring connector and pull the switch and wiring harness out of the top of the steering column.

Remove the three turn signal assembly mounting screws.

To reinstall the switch, you need to follow the reverse of the removal procedure.

To disconnect the negative battery cable, you need to remove the instrument panel bezel, disconnect the wiring at the steering column, and remove the switch.

To disconnect the negative battery cable, you need to remove the instrument panel bezel and the headlight switch ferrule nut.

To disconnect the negative battery cable, you need to remove the instrument panel bezel, disconnect the wiring at the steering column, and remove the switch.

Disconnect the negative battery cable and ensure to disable the anti-theft feature on models with a Delco Loe II audio system before disconnecting the battery.