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Problem with Turning Signal on 1995 Grand Am

Posted by freelife (My Page) on
Thu, Apr 16, 09 at 11:32

When driving my right turning signal lights up faintly when not in use. When I use the right signal it does work but all lights on right side of vehicle are very dim and flickering. Is there an electrical problem or do I just need to change turning flasher.

Follow-Up Postings:

RE: Problem with Turning Signal on 1995 Grand Am

At first, I would suspect an open turn signal lamp filament, but you describe other conditions that may point to a different problem. First, check all turn signal lamp holders for good grounds and good bulbs.

The fact that you right side signal lamps glow dimly when there is no call for a signal may indicate a missing ground somewhere. I had a problem like that a long time ago and it was traced to a lost ground on the back of the instrument panel, but that was way back in the 1960s when much of the lamp currents passed through conductors on or under the dash. The circuitry of modern cars are different today making more use of relays and solid state switches.

RE: Problem with Turning Signal on 1995 Grand Am

The turn signal indicator lighting up when the parking lights are on is caused by a poor or bad ground connection in or for a lamp socket. The lamp that is dim as viewed from outside of the car of course is the socket that is either failing, or has lost its ground connection.

This is one of the classic problems that I use when teaching technicians how to understand and diagnose voltage drop problems. By learning how to measure voltage drop, the technician quickly confirms if the problem is internal to, or external of the socket.

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