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2003 chevy trailblazer_ltz
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Discussion Starter · #1 ·
my both rear turn bulbs are fine, but when turn signals are on, they just gloom- and cause hazard speed flashing on all other turn signals.
has anybody found any solution to this; or is it just go thru all fuseboxes and measure wiring thru the vehicle???

and i have been driving my TB for over 20k miles- and it has altogether way over 130k miles on odo. - no major repairs done, just TLC maintenance... reason for writing is temps, its 20F - cold as Finland(=Alaska) winter...no temptation jump around car out there.
 

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Discussion Starter · #4 ·
yes! solution found; mine was the flasher unit under the instrument panel.
for others having same problem;
1. check underhood fusebox fuse, and rear seat fusebox fuse(s)- a fuse for each turn signal!
2. check the bulbs (remove tail lights- eaazy with 2 screws- and check also the bulb holder thingy- mine were reneeed couple years ago- and my turn signals ”gloomed” so i knew they got some power there...
3. remove the instrument panel lowest panel(2 eazy screws)- you see the flasher unit- press tiny dot that is same color as the tabs of the flasher; it jumps out (mine did atleast)
4.replace flasher- cost like 20 USD- although when sent overseas and all the import tax shoot to support our sweeet wellfare-semisocialism; 50USD or so....
5. have a beer and
enjoy turning signals disco! Hood Automotive tire Vehicle Automotive lighting Automotive design
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Discussion Starter · #5 · (Edited)
Well it was great for a while; now same symptoms only difference is that the rear turns dont flash any faster pace, so all seems fine...; what keeps messing my flasher???
Turn signals just gloom-really dim but when hazard flasher is pressed on, both work???
 

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Discussion Starter · #6 · (Edited)
So where should i start checking the grounds.... changing flasher dont help any more. Still both my rear turn signals just gloom in very dim way.
All other turn signals work in standard pace.
 

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Discussion Starter · #7 ·

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2004 chevy trailblazer_lt
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The turn signal problem on my 2004 TrailBlazer was due to defective circuit boards in the tail light housings. Have you checked yours as suggested by EnvoyBoy2004 2 months ago? Replacement boards are available from rockauto.com for about $15.00 each.
 
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Discussion Starter · #9 ·
I have multiple circuit boards, that I KNOW for fact are working, tried and changed them and same symptoms;
when hazard is used, all turn signals function properly; but when normal turn signal is used; the REAR tail lights just slightly "gloom" and sort of try to blink, but very very dim.
 

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Thanks for letting us know!
 
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