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Turn signal wiring - 1985 Pontiac Firebird

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Why only left turning signal not blinking only when headlights on? green arrow pointing left seen but not blinking. When headlights off, both turning signals work perfectly,


It sounds as though you have a wiring problem around that particular light/signal.

Check the black earth leads to the light and the signal - it may be nothing more than a 'bad earth' due to corrosion where the earth wire connects to metal.

Check the main power wires, too. It should be an easy fix .. make sure the wires are clean and secure

Apr 16, 2017 | Cars & Trucks

2 Answers

My rear turn signals are not working. front turn signals work rear parking lights work brake lights work


In the diagram for rear lamp, the top wires are voltage, the bottom black wire is ground. The brown wire on either side should be tail lamps, goes hot when you turn on the headlamp switch. The other top wire on either should be for turn signal. With everything turned on, is there voltage on that wire?
Because the front works and the rear don't, possible wiring circuit problem? The voltage for turn signals comes from bcm. The bcm knows when you turn on turn signal switch, either side, then the bcm sends voltage to turn signal lamp at the rear and front.

rear-turn-signals-not-working-front-nrw1b5lbo1usuvcsnuvurzx3-3-0.jpg

Oct 17, 2016 | 2009 Chevrolet Chevrolet HHR LS

1 Answer

Third eye works no rear signal or brake lights


The high mount brake light gets its own signal from the brake light switch (on the brake pedal). Or at least the wire leaving the brake light switch will splice, one wire to the high mount brake light, and the other for the rear brake lights is routed through the turn signal switch, and coordinated there with the turn signal wires to the rear brake lights. The brake wires and turn signal wires share the same wire, and same filament in the bulbs. It is kind of complicated, but brakes applied with no turn signal, brake light wire goes from brake light switch through the turn switch and out to the bulbs. If brakes applied with turning signal, non blinking brake light wire goes from turn switch to rear light, while the turning signal wire will go through the flasher relay, and then to the rear light to cause blinking.

I hope that makes sense. It appears the problem may be in the turn signal switch for both the turn signals and the rear brake lights.

Mar 14, 2015 | 2007 Dodge Ram 3500 Quad Cab Laramie

1 Answer

Turn signal flashes fast but bulbs good


You need to replace the turn signal flasher with a heavy duty one.

Oct 19, 2013 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

69 firebird turn signal switch does not cancel, need blow up of internal parts in column


You need to replace turn sinal switch its not hard remove center of steering wheel (horn button) remove steering wheel bolt with steering wheel puller pull wheel off remove turn signal handle three screws and emergency button, under dash on right side of steering colume disconect turn signal wires tape a long wire to the end of connector pull turn signal wires out with out pulling tape wire out so you can tape new turn signal wire connector to wire so you can pull it back through

Jun 29, 2011 | Pontiac Firebird Cars & Trucks

1 Answer

I'm trying to wire my 89 jeep wrangler to be towed useing it's existing lights.the turn signals both flash when right or left is on? I've tryed it under the dash with no luck now all the way...


If the brake and turn signal are on the same bulb than you can Orin straight wiring. If the brake and turn signal are on different bulbs than you'll need a wiring harness with a converter box. I'm pretty sure the wrangler has the brake and turn signal on the Same bulb so let's start with basic trailer wiring. The green wire on the trailer harness is for the right side turn and brake for the trailer. This wire should be attached to the wire on the vehicle that supplies power to the right turn signal/ brake light. The yellow wire is the left turn signal, brake light on the trailer and should be attached to the wire on the vehicle that supplies power to the left turn signal /brake light. The brown wire is the tail lights on the trailer and should be attached to either the left or right side wire on the vehicle that supplies power to the tail lights. The white wire is grounD and it is vitally important that this wire be attached to the vehicle in a manor that supplies a good ground. Failure to suppy a good ground will result in all kinds of funky problems with the trailerer lighting such as all the lights linking when the tail lights and turn signals are on at the same time. If you have any specific questions I will be more than happy to try and help. Good luck.

Jun 29, 2011 | Jeep Wrangler Cars & Trucks

1 Answer

How do i install Switch Assembly turn signal Cruise control PART AUTO for a 2002 Impala.


Multifunction Turn Signal Lever Replacement - On Vehicle

Removal Procedure

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  1. Verify that the multifunction turn signal lever is in the center of the OFF position.
  2. Disconnect the negative battery cable.
  3. Disable the SIR system.
  4. Remove the steering wheel.
  5. Remove the steering column trim cover.
  6. Remove the steering column knee bolster.
  7. Remove the steering column wire harness (1) from the steering column wire harness retainer (2).
  8. Remove the 2 wire harness straps from the steering column wire harness (1).
  9. Remove the steering column bulkhead connector from the vehicle wire harness.
  10. Disconnect the connectors from the multifunction turn signal lever steering column bulkhead connector.
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  1. Remove the retaining bolts (1) from the multifunction turn signal lever (2).
  2. Remove the multifunction turn signal lever (2) from the steering column.
Installation Procedure

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  1. Install the multifunction turn signal lever (2). Use a small flat-blade in order to compress the electrical contact and move the multifunction turn signal lever into position.
  2. Verify that the electrical contact rests on the canceling cam.
Notice: Refer to Fastener Notice in Service Precaution.


  1. Install the retaining bolts to the multifunction turn signal lever.
    • Tighten the retaining bolts to 7 Nm (62 inch lbs.) .
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  1. Connect the gray and black connectors to the multifunction turn signal lever steering column bulkhead connector.
  2. Connect the steering column bulkhead connector to the vehicle wire harness.
  3. Install the two wire harness straps to the steering column wire harness (1).
  4. Install the steering column wire harness (1) to the steering column wire harness retainer (2).
  5. Install the steering column knee bolster.
  6. Install the steering column trim cover.
  7. Verify that the lever is in the center or the OFF position.
  8. Install the steering wheel to the steering column.
  9. Enable the SIR system.
  10. Connect the negative battery cable.
I hope this helps you.

Thanks

Nov 28, 2010 | 2002 Chevrolet Impala

2 Answers

How to connect wiring for a trailer on a 93 dodge caravan?


I suggest check this diagram...

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And visit this LINK for other details and parts location.

Good luck (remember rated this).

Jul 31, 2010 | 1993 Dodge Caravan

1 Answer

Driver side signals only work when headlights are OFF


What may have happened is either the headlights wiring or the parking lights wiring somewhere along the wiring fused to the left turn signals wiring. Depending on if the turn signals go on when you put the parking lights on or the headlights on.

If the signals come on when you turn on the headlights than you only need to locate the light green wire that comes off the left turn signal harness.

Next follow that wire the entire way back to the firewall looking for another wire fused to that wire as you go.

If there are no signs of this you need to continue looking on the other side of the firewall all the way back to the turn signal and hazard flasher unit which is a black box that connects to a black harness located next to a grey harness behind the knee bolster.

But if the signals come on when you turn on the parking lights than you will also need to check the wiring from the rear left signal and follow that light green wire all the way back to the turn signal and hazard flasher unit.

This should fix your problem, but if not than your problem may lay within the the wiring between the turn signal/hazard switches and the turn signal and hazard flasher unit.

Also you may have a burnt circuit in the junction block. This block is where the light green from the rear left signal and front left signal meet. Don't have a description but if you cannot find it let me know and I will go out to the yard and look myself and let you know.

Apr 22, 2009 | 2004 Dodge Intrepid

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