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david mcmillian Posted on Jun 25, 2015
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My right front turn signal not working the bulbs are good and so is the fuse but I don't have fire going to them it's a 2010 chevy 2500hd

  • david mcmillian Jun 25, 2015

    I have trace the wire from the fuse box to the right front bulbs there's nothing wrong with it and I have voltage at the fuse can it be the fuse box

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1 Answer

Jeff Armer

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  • Cars & Trucks Master 15,575 Answers
  • Posted on Jun 25, 2015
Jeff Armer
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You don't have fire , never heard it called that before ! Battery voltage , power but never fire ! An open CTSY fuse located in the I/P fuse block will affect the operation of the right front turn signal only
Turn Signal/Hazard Lamps When the turn signal switch is placed in either the left or right position, a ground signal is completed from the turn signal switch to the BCM. When the hazard flasher switch is activated, a ground signal is completed from the turn signal/hazard switch to the BCM. The BCM then sends an ON-OFF voltage signal through the fuses to the appropriate turn signal and side repeater (export only) lamps or to all of the turn signal fuses for hazard operation. The driver door switch and passenger door switch also receive voltage from the BCM turn signal supply voltage circuits for the mirror turn signals. The door switches have no function or control of the mirror turn signals other than a pass through connection for the circuits. The audio chime is also activated when the turn signals are ON. The instrument panel cluster (IPC) receives the signals to activate the turn signal indicators over the GMLAN serial data system. When the hazard switch is pressed, all turn signal lamps will flash including both IPC turn indicators.
Ground is applied at all times at G201 to the turn signal/multifunction switch. The turn signal lamps may only be activated with the ignition switch in the ON or START position. When the turn signal/multifunction switch is placed in either the TURN RIGHT or TURN LEFT position, ground is applied to the body control module (BCM) through either the right turn or left turn signal switch signal circuit. The BCM then applies a pulsating voltage to the front and rear turn signal lamps through their respective control circuits.
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  • Jeff Armer Jun 25, 2015

    Your looking at the wrong place , The BCM turns on the turn signals. Connector x4 pin 5 is the circuit to the right front turn signals not from fuse box .Fuse CTSY 15amp in the I/P fuse box goes to the BCM not to the turn signals, the BCM pules the voltage on an off controlling the turn signals . The BCM is a electronic module ! An the best way to test is with a factory scan tool !You can check an see if it is receiving a signal from the turn signal switch !

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5 Related Answers

proton77

Mandeep Singh

  • 1184 Answers
  • Posted on Jun 15, 2008

SOURCE: Replacing front right turn signal bulb

Well the owners manual for your machine says "owner's manual simply states that for all bulb replacement not shown to consult the dealer "

Best way I found was as follows:

1) Loosen lower, forward portion of driver side inner fender liner to gain access from behind by removing one 10mm screw from lower, forward area of fender liner (this is the one that threads into a nutplate on washer fluid res.) and one of the forward, outboard little screws (thinking it was 7mm) that sits just inside the fender. This will allow you to pull the liner back and gain access to the bulbs from low and behind.

From here I still was not quite able to access the bulbs from behind so I had to continue on by loosening the headlamp housing to gain additional clearance. Its possible that those with smaller hands *might* be able to get them. If not, continue as follows:

2) Remove the plastic upper radiator valance by pulling ~ eight plunger/grommet panel fasteners (I noticed one of mine was AWOL right off the bat).
3) Remove front grille by pulling four 10mm screws along top and then popping out six Tinnerman-style clips. I found it easiest to simply compress the clips from behind using channel locks and then gently pulling grille away from vehicle to unseat them one at a time.
4) Pull back the inner fender liner and look inside to locate one 10mm hex head screw securing lower headlamp housing. The screw head faces outboard and is about 3-4" forward of the inner liner.
5) Remove two 10mm screws common to the upper headlamp housing. Housing should now be "free".
6) Gently pull on the headlamp assembly while "wiggling" it side-to-side to disengage two aft-facing, alignment pins (located on the outboard side of the housing) and one small plastic tab (located on the inboard, lower portion of the housing).
7) At this point you should be able to wriggle the headlamp housing forward and inboard enough to gain access to the back side of the turn signal bulbs from behind. Be careful not to scratch the fender or chrome bumper "ear". Its a TIGHT fit.
8) Pull the inner fender liner back and then reach up through an opening in the sheet metal to get at the signal bulb connectors. Again, CCW to remove and CW to install the bulbs connectors into the housing.
9) Install is reverse. Be careful to properly realign the headlamp housing into the fender prior to buttoning up everything else.

Thanks
Mandeep

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Anonymous

  • 1 Answer
  • Posted on Sep 05, 2008

SOURCE: No rear brake light / turn signals on 2001 Chevy Cavalier

The problem is the turn signal/headlight/hazard switch assembly on the steering column which the brake light wiring runs through. The part is easy to change and cost about $50 at most parts stores

Vitally Alcher

  • 1645 Answers
  • Posted on Sep 09, 2009

SOURCE: 2004 chevy 1500 brake lights not working

check fuse under hood, batery terminals coroded wire at harness if everything fails run a hot wire to rear brake line with an interuptor.
check the swich under the foot brake.
vitally

Anonymous

  • 4 Answers
  • Posted on Oct 11, 2009

SOURCE: 99 Chevy Tahoe... Rear turn signals, brake lights, and hazards

I had this problem, and to be honest, it happened to the left side about a week later...it's the board that the bulbs plug into...it's a very common problem with this model. So popular that you can normally get the socket board off the shelf at a parts store! it's extremely simple to replace, and I replaced all the bulbs at the same time!

Anonymous

  • 1 Answer
  • Posted on Jun 10, 2010

SOURCE: Audi A4 2002 Low beams & Right front turn signal stopped working

but on 2002 A4, F20 and F21 are empty! Does anyone has an idea where the headlight fuses located?

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The way the system works is:
The fuse supplies 12 volts to the flasher unit then leaves the flasher and goes to the turn-signal switch in the steering column.
When you set the turn-signal switch to turn right or left, the switch sends that 12 volts to the front and rear bulbs. The voltage goes through the bulb, lighting the bulb and goes to ground.
If any of these components are not good than the lights will not work.
Check the fuse and make sure it is good, the fuse will be located under the hood at the fuse center.
Let me know if you have a test light and we can proceed from there.
Regards,
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