Need help FAST !!!!! FIXED !!!!
Reply #23 –
Here's my 2 cents, my car was doing the exact same thing. When I turned the left signal on it would cause my speedo to blink on and off; it was also doing it when I put on the brakes.
Guess what it ended up being? One of the BRAND NEW taillight bulbs I put in the day before was shorted from the factory. I swapped the bulbs to the other taillight, and the problem moved to the other side... One new bulb and the problem was solved.