Front turn signal alarm

[VintageIron41]

Hello and thanks for taking time to read this.

Has anyone had this issue and have a resolution?

2014 Caprice, right front turn signal will blink, then goes to rapid blink with instrument cluster alarm to check right front bulb. I have replaced the bulb ( it's in a tight spot ), no change, then replaced the bulb and holder with the drivers side, drivers side functions normally, right side still does the same thing.

[Fudgehog]

Did you check your taillight bulb? Typically hyperflash is present when the CANBUS system senses a burnt out bulb, which in your case would be front or rear on the passenger side.

Or if you used LEDs, a resistor that came loose from the circuit. Would also apply to front and rear.

[Sanford]

My test for troubleshooting light problems is to turn the park lights on and check the brightness on all for corners, then turn the hazard flashers on and see if they all blink the same. If one does some weird blinking, take a look at the ground wiring.

David

[VintageIron41]

Thank you for your reply's, rear turn signal is working, will try ground check!