Turn signal indicator light problem
Thread Starter
Joined: Feb 2006
Posts: 322
Likes: 12
From: Tampa Bay Area
Turn signal indicator light problem Very strange problem. The left turn signal indicator light goes on and stays on solid while the headlight are turned on. It does flash if I turn on the blinker. All exterior lights still work as they should, it's just the dash indicator that is acting up. Any idea what it could be?
TIA.
TIA.
Joined: Nov 2003
Posts: 11,328
Likes: 346
From: Jacksonville, FL (originally from Toronto Canada)
This question has been asked and answered dozens (if not hundreds) of times - a search would have found your answer quickly.
The problem is caused by a burned out bulb or corroded socket on the side that doesn't flash. Turn on your hazard flashers and then walk around the car looking for the bulb that doesn't flash. It will probably be the front one because they often get water in them. Replace the bulb and check that the socket isn't corroded (otherwise clean or replace it).
The problem is caused by a burned out bulb or corroded socket on the side that doesn't flash. Turn on your hazard flashers and then walk around the car looking for the bulb that doesn't flash. It will probably be the front one because they often get water in them. Replace the bulb and check that the socket isn't corroded (otherwise clean or replace it).
Thread Starter
Joined: Feb 2006
Posts: 322
Likes: 12
From: Tampa Bay Area
Originally Posted by WhiteBird00
This question has been asked and answered dozens (if not hundreds) of times - a search would have found your answer quickly.
The problem is caused by a burned out bulb or corroded socket on the side that doesn't flash. Turn on your hazard flashers and then walk around the car looking for the bulb that doesn't flash. It will probably be the front one because they often get water in them. Replace the bulb and check that the socket isn't corroded (otherwise clean or replace it).
The problem is caused by a burned out bulb or corroded socket on the side that doesn't flash. Turn on your hazard flashers and then walk around the car looking for the bulb that doesn't flash. It will probably be the front one because they often get water in them. Replace the bulb and check that the socket isn't corroded (otherwise clean or replace it).
Joined: Nov 2003
Posts: 11,328
Likes: 346
From: Jacksonville, FL (originally from Toronto Canada)
I suggest you check your exterior lights again. If you're saying that the inside indicator doesn't flash even though all the exterior lights flash as they should (don't forget the side markers) then that isn't possible without some modification to the wiring. The inside indicators are wired in parallel with the external lights and then straight to ground. Unless they have been cross-connected somehow they will always give an accurate indication of what is happening outside. Also, remember that the front lights are dual-filament so just because they work with the headlights doesn't mean they flash with the signals - use the hazard flasher test to check.
Thread Starter
Joined: Feb 2006
Posts: 322
Likes: 12
From: Tampa Bay Area
Originally Posted by OnA Fan
Very strange problem. The left turn signal indicator light goes on and stays on solid while the headlight are turned on. It does flash if I turn on the blinker. All exterior lights still work as they should, it's just the dash indicator that is acting up. Any idea what it could be?
TIA.
TIA.
Joined: Nov 2003
Posts: 11,328
Likes: 346
From: Jacksonville, FL (originally from Toronto Canada)
Originally Posted by OnA Fan
umm.... from my original post.
Okay, as I said the indicator lights are wired parallel to the exterior turn signals so there is no real connection between them and the headlights. It would be a possibility that the ground connection for the lamps is disconnected forcing other lamps to backfeed through the signal indicator lamp for ground. However, this seems unlikely because there would be other symptoms such as the turn signal indicator lighting when the seat belt reminder light was on (same ground path). Are your DRLs working properly? If the power is backfeeding through the indicator light it would ground through the DRLs via the DRL module.
Does the indicator light go on with just the headlights or any time the dash lights are on (parking lights)? Does the brightness of the indicator light vary with the use of the dimmer switch? For that matter, do the dash lights still dim properly?
Also, are you sure the indicator bulb is lighting rather than it just picking up stray light from a nearby bulb? That could indicate some damage to the instrument cluster backplane. Have you worked back there recently (new gauge overlay perhaps)?
Sorry for so many questions but I'm just trying to get a handle on what might cause your problem and need to eliminate some possibilities.
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Thread Starter
Joined: Feb 2006
Posts: 322
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From: Tampa Bay Area
Originally Posted by WhiteBird00
Sorry, misread that part - must be old age catching up to me.
Anyway,
The indicator turns on with parking lights only as well as with headlights. The dimmer switch still works but does not dim the indicator even if turned all the way down.
What are DRLs?
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Verdad Gallardo Joined: Nov 2003
Posts: 11,328
Likes: 346
From: Jacksonville, FL (originally from Toronto Canada)
OK, let's see if we can first determine where the power to the indicator light is coming from (we know the ground is common to many other circuits so it probably isn't the problem). Try removing the TURN/BU fuse (#2) and see if the indicator light still goes on with the dash lights. That will tell us if there is possibly something wrong with the turn signal switch.
If the light still illuminates, replace the fuse and try the same thing with the TAIL LPS fuse (#5) and the IP DIMMER fuse (#16). Once we determine where the power is coming from we might be able find the fault.
If the light still illuminates, replace the fuse and try the same thing with the TAIL LPS fuse (#5) and the IP DIMMER fuse (#16). Once we determine where the power is coming from we might be able find the fault.
Thread Starter
Joined: Feb 2006
Posts: 322
Likes: 12
From: Tampa Bay Area
Ok, I went to check all the things you mentioned and turned on the lights. The indicator is OFF. It's been on for 3 weeks now, and just when I get ready to troubleshoot, it goes away. 
I'll have to wait till it returns.
Thanks for all your help.
I'll have to wait till it returns.Thanks for all your help.
