2002 Ford Mustang Logo
Posted on Jan 06, 2009
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

Turn Signal Not Working, But Parking & Back Brake Light Does

My turn signal stopped flashing. I figured it was just the bulb. Replaced the side lamp bulb and found that only one filament lights up, the parking light. The filament for the turn signal will not light up. The back turn signal does work so I know it's not the turn signal switch. Maybe a ground wire? Any suggestions?

2 Answers

Anonymous

Level 1:

An expert who has achieved level 1.

New Friend:

An expert that has 1 follower.

  • Contributor 1 Answer
  • Posted on Jun 22, 2013
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

New Friend:

An expert that has 1 follower.

Joined: Jun 22, 2013
Answers
1
Questions
1
Helped
595
Points
1

I have a 95 mustang my break lights and turn signals and hazzards dont work.

Anonymous

Level 2:

An expert who has achieved level 2 by getting 100 points

Hot-Shot:

An expert who has answered 20 questions.

Corporal:

An expert that hasĀ over 10 points.

Mayor:

An expert whose answer gotĀ voted for 2 times.

  • Expert 56 Answers
  • Posted on Jan 06, 2009
Anonymous
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

Hot-Shot:

An expert who has answered 20 questions.

Corporal:

An expert that hasĀ over 10 points.

Mayor:

An expert whose answer gotĀ voted for 2 times.

Joined: Jan 03, 2009
Answers
56
Questions
1
Helped
58726
Points
164

I would say try to replace the relay,(it should be in the fuse box) for the signals. if it's not that it could be the brain it's located in the colum of the steering unit.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

2009 audi tt quattro 3.2l v6 brake light clusters complete failure

automatic transmission or manual stick, the brake/clutch switch operations are NOT THE SAME on both car options.
no country told, lighting (for sure external) are not the same all over earth, sorry I do not make laws (like DOT USA?) or anywhere.
this forum is www, a world wide web forum. so where are you ,a country.?
and you work with no voltmeter or service manual schematic.
and no scan tool? wow endless guessing done. throwing parts wild.
its is modern car, 2009 totally unlike a 1990 or 1980 or older car.
for sure.
there is never a need to replace all fuses ever, testing is super easy even if they all look good. (did they?). (look test, ohms or volts tests)

that melting thing means a lamp shorted. (they can)
I see reverse lamps failing and parking lamps
the transmission PRNDL SWITCH MUST WORK IN "R" OR THE LAMPS WILL BE DEAD REVERSE. BOTH WERE SO.....
I GUESS INDICATOR MEANS turns signals failed( blinkers)
the car has 4 corners, why not tell what all 4 do when Turns or parks fail.?>??? what they all do outside matters most. (electrics)

the huge problem here is not scanning the OBD2 port with a real scan tool. I bet it tells you why it fails I sure do but you failed to do that.

does this car have the parking AID option?
does this car have optioin
Daytime Running Lamps, a.k.a DRL?>? also wiring for TT is unique so states the SM (service manual)
i can't see you work on any car so now comes right parts questioln
using only these parts.,
Rear Turn Signal Bulb
  1. Left/right Rear Turn Signal Bulb M6
  2. Right Rear Turn Signal Bulb M8
  3. 12 V, 18 W
  4. W16W
the German manual calls park lamps TAIL even when front and side park lamps are park lamps. same source.
It does call TURNS turns, so we can find the correct schematics,
searching the online service manual for you.
most modern cars, use BCM to run all that. I call it the body brain
each maker uses there names and Germans use CODES
LIke J123. to name a model. (that must be decoded first to work the problem, yes a pain on all germane cars)
deep in the manual i found the secret german body brain
J519 - Vehicle Electrical System Control Module
this module runs the whole rear (it has DRIVERS)
Drives means electronic high power regulator drivers to lamps.
that if it sees a short , it simply goes OFFLINE until cures.
then magically goes back on one,

J519 - Vehicle Electrical System Control Module
M6 - Left Rear Turn Signal Bulb
M8 - Right Rear Turn Signal Bulb
M9 - Left Brake Lamp Bulb
M10 - Right Brake Lamp Bulb
M16 - Left Back-Up Lamp Bulb
M17 - Right Back-Up Lamp Bulb
M37 - Left Rear Side Marker Lamp Bulb
M38 - Right Rear Side Marker Lamp Bulb
T2g - 2-Pin Connector, In the Luggage Compartment, Right, Black
T6k - 6-Pin Connector
T6l - 6-Pin Connector, Black
T12c - 12-Pin Connector, Black
T12d - 12-Pin Connector, Brown
X3 - Rear Fog Lamp
395 - Ground Connection 30 (in Main Wiring Harness)
662 - Ground Connection in Left Rear Side Panel
676 - Ground Connection 2 in Luggage Compartment, Left
------------------------

J519 is here
Behind driver's left stowage compartment, beside steering column -2

Fuse 7 (On Fuse Panel C)? blown fuse?
this car uses CAN BUS.
many of the switches wire directly to the J519 Body brain
but not all.
lets look at that now, (my book is USA only SM)
the steering switchs for park, turn and heads.
are all sent to the cluster brain directly,
then the cluster brain via the CAN_BUS network sends data commands to the J519 (body brain)
then if this fails the scan tool told you it did but you never scanned the OBD2 port. while failing
others found water leaks to dash module (windshield cracks or glued in wrong and leaks)
some Audi versions 2009 have top of brake pedal brake switch that must work, and is direct drive signal to J519
TURNS are not switch actual direct drive to the J519. no.


example 1
U1113 Audi Code
lacking scan tools you will never fix this by guessing. sorry
CAN Bus wiring intermittently open, shorted to power or ground
U0001
U0155<< lost comms to IP cluster.
and more lots and lots more possible
we check all fuses in all fuses boxs A ,B,C etc.
then scan the OBD2 port. for errors. for sure comm errors'

see this fuse box?

Main Fuse Box in Right Rear of Luggage Compartment on Battery see? drivers (electronic) to each lamp. proof (no fuses to lamps)
so if one lamp shorts. the other do not die. by design
and J519 must get the commands to turn them on first.
j519-undefined-undefined-0.jpg
1helpful
2answers

ELECTRICAL PROBLEM

take it to a body shop
0helpful
2answers

I have no break lights or turn signals

Turn signal tail lights and BRAKE LIGHTS NOT WORKING


It can be faulty brake light switch causing the problem or its blown brake light bulb. First check and confirm brake light lamp is working and that's not the case.

For turn signal not working it can be faulty turn signal switch or its issue with wiring:----


==========

To trouble shoot brake and turn signal related problem, check the help links mentioned below:-----


Click the link:----
1996 Buick Regal Grand Sport Brake light Switch Location? http://schematicsdiagram.blogspot.in/2012/04/1996-buick-regal-gran-sport-brake-light.html

-----------
No brake lights on Buick? http://schematicsdiagram.blogspot.in/2012/04/no-brake-lights-on-buick.html

----------
Brake lights not working on 1989 BUICK REGAL?

http://schematicsdiagram.blogspot.in/2012/04/brake-lights-not-working-on-1989-buick.html

-------
How to replace Brake light switch on Chevrolet Tahoe?

http://technoanswers.blogspot.in/2012/02/how-to-replace-brake-light-switch-on.html

---------------
How to replace Parking, turn, and Brake Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html

----------
Upper brake lights work, but low brake light not working?

http://schematicsdiagram.blogspot.com/2011/12/upper-brake-lights-workbut-low.html

------------
1997 Cadillac Catera: How to replace Brake Light Switch?

http://howtobyme.blogspot.in/2012/06/1997-cadillac-catera-how-to-replace.html

------------


2003 Chevrolet S10 Tail light Fuse http://schematicsdiagram.blogspot.com/2012/11/2003-chevrolet-s10-tail-light-fuse.html

---------
Chevrolet Parking light and Tail lamp light Wiring diagram http://schematicsdiagram.blogspot.com/2012/11/chevrolet-parking-light-and-tail-lamp.html

----------
Car Tail Lights Not Working?

http://schematicsdiagram.blogspot.com/2011/12/car-tail-lights-not-working.html

----------
Turn Signal Not working http://technoanswers.blogspot.com/2012/11/turn-signal-not-working.html

----------
Right turn signal not working on Pontiac Car?

http://schematicsdiagram.blogspot.com/2011/12/right-turn-signal-not-working-on.html

--------
Only one side indicator light working on car?

http://schematicsdiagram.blogspot.com/2011/12/only-one-side-indicator-light-working.html

-----------
Turn signals not working on 1987 Jeep Wagoneer? http://schematicsdiagram.blogspot.com/2011/12/turn-signals-not-working-on-1987-jeep.html

1996 Chrysler LHS brake light circuit wiring diagram?

http://technoanswers.blogspot.in/2012/02/1996-chrysler-lhs-brake-light-circuit.html

----------
How to replace rear Brake lights on 2004 Toyota RAV4? http://schematicsdiagram.blogspot.in/2012/02/how-to-replace-rear-brake-lights-on.html

------------
One brake light on driver side not working, but other lights work?

http://schematicsdiagram.blogspot.com/2011/12/one-brake-light-on-driver-side-not.html

----------
2002 Lincoln Town car Fuse Box http://schematicsdiagram.blogspot.com/2012/11/2002-lincoln-town-car-fuse-box.html 2007 KIA Rio: Brake Light Fuse Box Diagram?

http://repairhelpcenter.blogspot.in/2012/06/2007-kia-rio-brake-light-fuse-box.html

-------------
Overhead Brake lights not working on 1999 GMC Sierra 4x4?

http://technoanswers.blogspot.in/2012/03/overhead-brake-lights-not-working-on.html

---------
2004 Ford Mustang: Brake light Fuse Location?

http://howtobyme.blogspot.in/2012/05/2004-ford-mustang-brake-light-fuse.html

---------

These will help.

Thanks.

0helpful
1answer

2005 impala rear (passenger side) blinker and brake light wont work... the parking lights work fine. I changed the turn signal light figured that was the problem since the front passanger blinker works...

Any idea's ? Yes , learn how these system's work ! Looking at wiring diagram's to see what all is involved in the electrical circuit's for the brake & turn signal lamps . Plus learning how to test electrical circuit's with a DVOM - digital volt ohm meter .
Electric Testing Techniques You Need to Know
Testing is how to find this problem , not going by someone guessing who has not even looked at the vehicle ! Free wiring diagram's here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine size . Under system click on lighting ,then under subsystem click on stop lamp or turn signals . Take your DVOM an at the rear right stop lamp bulb test for B+ voltage , check ground side . See which side of the circuit has the problem . Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia

2helpful
5answers

2000 taurus left turn signal flashes rapidly and the left rear turn signal lamp does not work. Does ford have burned out bulb sense circuit that would give this indication? The right side flashes normally.

Yes - the fast flashing is a warning that a bulb is burned out. Change the bulb (be careful to put it in the same as the old one as it probably is 2 bulbs in one , parking and turn/stop) and you should be fine.
0helpful
3answers

On my dash cluster for a 2005 Dodge Ram 3500, I have a "Lamp Out" indication. My head lamps are working. Help Thanks

Hi
Turn on your lights,turn your turn signals on to either side and walk around the truck looking for a light burned out.Parking lights,turn signal,anything.If you don't find anything put your turn signal to the other side and walk around again.But most likely it's a parking or "running" light. The bulb out warning checks several different systems.Don't forget to have someone help you with back-up lights too.If it's time for 1 to go,there may be another.And have them step on the brakes and check those too.
Back-up and brake lights are 2 that you should never get a ticket for.
Seriously,how could you know?
You'll find it
Bob

0helpful
2answers

Tail lights work on both sides. turn signal and

Sounds like you need to replace the drivers brake/tail light.
0helpful
1answer

Left rear turn signal and brake light dont work

You have a broken wire to the turn/brake light portion of the light as they use the same wire. Or where the plug goes into the light assy could be bad. Torsion mount lights are horrible and you should think about replacing with a universal light that you can wire direct.
0helpful
1answer

Turn signal quit working

A lot of the bulbs that are used as turn lights have a 2nd filament in them that is used for parking lites and/or brake lights. Is there any part of that right side lights working? check parking lites and check brake lites.

The next thing to check is the flasher. Can you hear it clicking when you use it for the left side? Now try it for the right side. can you hear anything?


Not finding what you are looking for?

605 views

Ask a Question

Usually answered in minutes!

Top Ford Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

xxxxxx xxx

Level 3 Expert

5117 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...