Front passenger turn signal not blinking

Tiny
JUSTIN1213BYNUM
  • MEMBER
  • 2007 CHEVROLET IMPALA
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
I just bought this car and I am trying to fix the turn signal issue to get a state inspection done. The front passenger side turn signal does not blink (bulb lights up but doesn't blink). I have replaced the fuse and amber bulb. Inside the car when I use the switch on the steering wheel to turn on the driver side blinker, it works. When I use the switch to turn on the passenger side the rear light blinks but not the front. When using the steering wheel switch to turn on the passenger side turn signal the green arrow on the dash blinks fast, however when pushing the hazard light button located on top of the steering wheel the green arrow for the passenger side blinks at regular speed but the bulb itself outside on the front passenger side does not blink.
Monday, August 12th, 2019 AT 8:41 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Welcome to 2CarPros.

I have to be honest, one of two things is happening. Since the green flasher inside flashes double time, that tells me there is an open circuit to that bulb. Now, you replaced the bulb. Are you certain that it was the correct bulb type? Next, the socket itself may be bad. What I need you to do is check the socket. If I recall, this is a dual element bulb. One element lights with the marker lights and the other with the parking or signal. If you look at the attached picture, you will see a red wire that jumps from the marker light. If the light comes on with the headlights, then that is good. Next, there is a dark blue with white tracer wire that connects to a yellow wire near the socket. What I need you to do is check if that wire has power when the turn signal is turned on. If it does, confirm the correct bulb is installed. If it is, replace the socket.

Note: If the light doesn't turn on with regardless and there is power to the socket, then suspect a bad ground. If you look at the schematic, you will see a black wire which runs behind the headlamp is the ground. Make sure it is clean and tight.

Just for good measure, I attached a picture of fuse allocation. Note there is one for the left and one for the right.

Here are a few links you may find helpful:

https://www.2carpros.com/articles/turn-signals-not-working-blinker

https://www.2carpros.com/articles/turn-signals-blink-rapidly

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

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

Let me know if this helps or if you have other questions.

Take care,
Joe

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Tuesday, August 13th, 2019 AT 7:30 PM

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