Turn signal indicator problem

[athens7]

The little green turn signal light (center of three lights on the tach face) on my car has taken to glowing and/or flickering when the turn signals are not in use. The glow waxes and wanes, and is never as bright as when the signals are in operation. It happens whether the main/parking lights are on or off, but is more likely when they are on. Manipulating the headlight switch does seem to affect the glow. All turn signals and lights are functioning normally. I have just replaced the Banner battery with an Odyssey PC680MJ. The Banner had not shown obvious signs of failing, but it was drawing down to around 8 volts on starting, causing problems with my gauges.

 

Ben at Caterham USA says he has not seen this previously. Any ideas as to causes/cures?

[Usher]

My first guess is you have a bad ground in your instrument panel.

[scannon]

+1 on the ground. Also check the connector on the back of the tachometer to make sure it hasn't started to back out a bit.

[MHKflyer52]

Look for any signs of corrosion on any of the connections to the instrument panel. Maybe spray your headlight switch with an electrical cleaner as it sounds from your description that you might have an internal short in the switch causing the instrument lights to come on.

Will be interesting to hear just what the problem is once you get it figured out.

[GBOLT]

Pull one fuse at a time, and see if you can isolate which system may be the issue. Once you find the system check the grounds first. Good luck.

 

GB