wsinsle wrote:

Does the flickering seem to stop at higher RPM's like the Alt light? The alternator puts out a pulsing DC not a straight line DC. The battery tends to level out those pulses, closer to a straight line. Disconnect the battery after start and you may see the LED's pulse more (I never tried this not sure). The faster the alternator spins the closer the pulse peeks are together, this will also tends to make the DC closer to a straight line. One thing you could try is a capacitor from your dash light positive to ground, I'd say at least a 220uF or larger. Make sure it is rated over 15 volt. This wont fix the Alt light, as Bob said you can't use a LED there. I could splain this better if I could draw a pic.

Yep, all LED light flicker would stop (i.e., the LED lights cut off like they are meant to be) when held at 2000RPM or higher.  All the other instrument cluster LED lights besides the ALT light flicker so lightly that I can't see them unless I have the plastic socket hanging out to watch it. I also have LEDs wired into my courtesy lights and those don't flicker at all, so it seems to be isolated to the instrument cluster.

Last edited by mustang6518 (7/08/2021 1:11 PM)

Wag8142 wrote:

After changing my wiper switch my gauge lights no longer come on . I can't find anything unplugged . Can someone help me ?

What year car? Did you have single speed, 2 speed or something else? A little more info and I'm sure some one on here will get you in the right direction.