i have 2009 Montana SV6 i have a question about my turn signal both are working but there no sound that goes the speaker and they are working fine do you know why there no sound
The sound made by the directional signals is mechanical and does not come from your speakers. There is a relay under your dash that turns the lights on and off and it also produces the "click" you here when they are operating. Some relays are quieter than others and some produce no sound at all. If you want the noise, buy a new relay for under $5 and replace it.
I have a Pontiac Montana 2009 with the same issue and the sound is not a "click" from a relay, it is actually a sound from a buzzer. The flashing relay is under the hood beside the engine and it is impossible to hear this relay from the driver seat.
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