Question about 1999 Oldsmobile Bravada

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What are the instructions to remove and replace the combo turn signal switch, located in the steering column, for a 1999 bravada

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Warning: 1995 and later models are equipped with an airbag. Always turn the steering wheel to the straight ahead position, place the ignition switch in Lock and remove key, then remove the airbag fuse and unplug the yellow Connector Position Assurance (CPA) connector at the base of the steering column before working in the vicinity of the impact sensors, steering column or instrument panel to avoid the possibility of accidental deployment of the airbag, which could cause personal injury. The yellow wires and connectors routed through the instrument panel are for this system. Do not use electrical test equipment on these yellow wires or tamper with them in any way while working under the instrument panel.
Caution: On models equipped with a Delco Loc II anti-theft audio system, be sure the lockout feature is turned off before performing any procedure which requires disconnecting the battery.

  • The turn signal switch function is incorporated into the multi-function switch, along with the wiper/washer and headlight dimming controls.
  • Disconnect the negative battery cable. Remove the steering column covers and the drivers knee bolster.
  • Remove the two Torx screws securing the multi-function switch to the top of the steering column.
  • Clip the wire-ties securing the multi-function switch harness to the other steering column wires.
  • At the bottom of the steering column, remove the bolt securing the large bulkhead electrical connector to the firewall.
  • Separate the two multi-function switch connectors from the large bulkhead connector.
  • The multi-function switch and its harness must be replaced as a unit.
  • Installation is the reverse of removal

Posted on May 30, 2011


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The turn signal flasher is located on the bottom rear of the turn signal switch, mounted on the steering column. If you remove the shroud from the steering column, you'll be able to see the flasher on the switch. It's a small black plastic box, plugged into a socket on the switch.


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I agree, the multi-function switch would affect both components.

You could get a wiring diagram and test the circuits - or get a new switch and plug it into the harness.

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My hazard lights work, on my 1999 expedition xlt, but my turn signal lights do not. Im not sure if I need to replace the flasher or the relay. If its the flasher, where is the flasher located and where...

This is a common problem for the turn signal switch itself. Try used. You will notice in the instructions to remove the steering wheel. Don't. The removal of the ignition switch is also not necessary. Remove the screws at the bottom of the column where it shows and take a screw driver and pry the other side up to see the 2 screws (torx, or star bits) to remove. This will only take about 20 minutes to perform.

  1. Disconnect the negative battery cable.
  2. Remove the 4 retaining screws from the lower column shroud and remove the upper and lower shrouds.
  3. Remove the 2 retaining screws from the multi-function switch and unplug the 2 wiring connectors.
  4. Remove the switch.

To install:
  1. Install the multi-function switch.
  2. Tighten the 2 retaining screws and attach the 2 electrical connectors.
  3. Install the upper and lower column shrouds. Tighten the 4 retaining screws.
  4. Connect the negative battery cable.

F-150, F-250, Expedition, Navigator and 1999-00 Super Duty Models


Fig. Fig. 1 Turn the ignition switch to the RUN position and push the lock cylinder release pin with a suitable punch while ...


Fig. Fig. 2 ... pulling out the lock cylinder


Fig. Fig. 3 Remove 3 steering column shroud retaining screws and ...


Fig. Fig. 4 ... remove the upper and ...


Fig. Fig. 5 ... lower steering column shrouds


Fig. Fig. 6 Remove the switch retaining screws, lift the switch assembly up and ...


Fig. Fig. 7 ... detach the switch electrical connectors to remove the switch

  1. Disconnect the negative battery cable.
  2. Remove the ignition key and tumbler as follows:
    1. Turn the ignition switch to the RUN position.
    2. Push the lock cylinder release pin with a suitable punch while pulling out the lock cylinder.

  3. If equipped, twist off the tilt wheel handle and remove.
  4. Remove 3 steering column shroud retaining screws and remove the upper and lower shrouds.
  5. Remove 2 self-tapping screws that retain the combination switch to the steering column casting. Disengage the switch from the casting.
  6. Detach the electrical connectors, being careful not to damage the locking tabs and the shift position indicator cable.

To install:
  1. Connect the combination switch electrical harness connectors ensuring that the connectors are fully engaged. The wiring for the switch is to be routed under the shift position indicator cable.
  2. Install the combination switch with 2 self-tapping screws. Tighten to 19-25 inch lbs. (2-3 Nm).
  3. Install the upper and lower steering column shrouds. Install the retaining screws and tighten to 9 inch lbs. (1 Nm).
  4. If equipped, install the tilt wheel handle ad tighten to 44 inch lbs. (5 Nm).
  5. Install the ignition key and tumbler assembly.
  6. Connect the negative battery cable.
  7. Check the steering column and combination switch for proper operation.

Feb 12, 2011 | 1999 Ford Expedition

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I have a 93 Olds Bravada. The multi-function turn signal switch, the whole assembly including the turn signal switch arm needs to be replaced. I was told by one party that this part is non-replaceable and...

I believe yes, you can replace just the switch. You will need to unplug the wire harness to the switch from under the dash/column area and fish it out, and the steering wheel will need to be removed.

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bad earth or short can cause this
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Jun 22, 2009 | 1999 Oldsmobile Bravada

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Have hazard lights but no running or turn signals

sounds like you need a combo flasher assembly..located in fuse block inside vehicle under steering column..there may be a plastic cover under dash you have to remove to see fuse block..large black relay that plugs into fuse block..if you pick up a new one,you will see what it looks like..available at dodge dealer..combo flasher or drl/signal relay

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Turn signal switch is dead. Not working at all. Not sure where its located to replace the switch

hi how are you? the turn signal switch is behind your steering wheel in the column.must remove horn assembly.then steering wheel,use puller to remove remove clip that holds steel plate.(tool required).remove plate.then remove any steering column covers/plastic.then remove screws for turn signal switch.unplug wires and remove.then reinstall in reverse.

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ReplacingTurn Switch

1. You are going to need a steering wheel puller.
2. You remove the steering wheel center.

3. you remove the large steering column nut, then install steering wheel puller to remove the steering wheel. It is necessary to mark the shaft to the steering wheel so that it will go back in the same position.

Once the steering wheel is removed, you can see the turn signal switch. There is one center screw that holds the turn signal switch inside the steering wheel hub.

Once the screw is removed the signal can be lifted up over the steering wheel shaft.

Now leaving that, go underneather the dash area and remove the smallpanel around the steering wheel shaft. There you will find a large electrical connector with all the wires that are used in the steering column. This connector can either be fed up thru the column or by disconnecting all of the wires and feeding them up through the column.

this will remove the old switch. The new switch and its wiring harness must now be fed back down the steering column and then reconnected to the large electrical connector.

Now re-install the new switch, screw the turn signal stem back into the switch assembly and the re-install the steering wheel, according to the aligments marks you made, otherwise your steering wheel will be off centered. Tighten down steering wheel center nut, and other panels. Check operation of switch.
Factory manuel gives mechanics 1 hour to do this, but it cam take up to 4 hours.

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Headlights Not Working, Brights and Turn Signals Work

This is cuased by the multifuntion switch that is located on the steering column. It is the swith with the headlight dimmers on it.

You just need to remove the steering column bezels and replace the multifunction switch.

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