2003 Chevrolet Monte Carlo Both Turn Signals Flash Fast Same Time

Hello,

It sounds like you have a turn signal switch that is shorted or hazard flasher which is the turn signal flasher that is out. They had big problems with the unit in these cars.

Here are some guides so you can confirm the issue test through the switch using the wiring diagrams below.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Diagrams (below)

Please let us know what happens.

Cheers, Ken

i have a 2003 monte carlo.. ive notice as i was driving i wanted to turn on a on a street.. so i put on turn signal and then after 5 secs the the blinker on my dash went away.. so i pulled over and did a test and again after 5 secs it went away again... what can this be. its killing me.. please help mr 1 a auto.. thankz.. Your
fan Eddie..

check your bulbs first then it may be the flasher which is an integral part of hazard switch near center of dash

Electrical problem
2004 Chevy Monte Carlo 6 cyl Front Wheel Drive Automatic

my turn signals work off and on meaning sometimes they blink sometimes they won't. what can i do to fix this problem?

I have seen this problem before it is the turn signal switch.

Hello there,

You're probably dealing with a bad flasher unit (hazard switch). It's a common occurence on Impala/MonteCarlo. A new unit runs around $35-40 if I remember correctly.

Electrical problem
2004 Chevy Monte Carlo 6 cyl Front Wheel Drive Automatic
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The turn signal light up but will not blink. The hazard will not flash also. this is a 2004 chevy monte carlo.

Replace the binker unit, in that car I beleive it is the hazard switch. Please let me know

Electrical problem
2000 Chevy Monte Carlo 6 cyl Front Wheel Drive Automatic
turn signals
sometimes it works sometimes it dosent please tell me the problem

intermittent issues are hard to diagnose, could be failing turn signal switch or sticking flasher signal relay most likely culprits.

Blinkers work part of the time, changed switch in colum still same thing, no one can figure it out

the flasher is the 4 way switch on dash. have it checked.

Roy