Both signal and emergency flashers are located behind the lower dash panel, below the radio, above the transmission hump in floor. The lower panel must be removed to gain access to them.
The question is for a 1997 sonoma however the answer refers to a 1994 sonoma, and after trying this on my 1997 sonoma with no luck I found the answer under "Where is the flasher unit on a 1997 Chevy S10?" which is exactly where I found the flasher units for my 1997 sonoma and it was indeed the right flasher unit which was for the signal.AnswerI have a 94 Sonoma and to locate the turn signal flasher, inside, under dash, on left side is a plastic sound protector, mine had 3 screws holding it up, drop this down and straight in you will see a 1" round thing - this is the flasher, pull it out and replace with new one (there are two flat prongs that plug in). It appears this is a well guarded secret!
GM S-Series Sonoma 2.2 I-4 2,000 GM S-Series Sonoma 4.3 V-6 6,000
It is behind the radio
Aren't they different flasher relays
There is no flasher on the 97. It is all controlled by the LCM or lighting control module. I believe it is between $200 and $400 for a dealership replacement.
Below left hand side of the instrument panel.
Contact you local GM dealer.
Yes, you need to remove the plastic lower dash panel to gain access to the signal and 4-way flasher relays.
I believe that one in under the dash on top of or along the steering column.
If the turn signal bulbs light but will not flash, the flasher relay is defective, replace it.
Yes, they are 2 separate systems with separate flashers.
You can find a diagram for a 1997 GMC Sonoma in the owner's manual. You can also find it at various auto stores.