Re: {Chrysler 300} 1962 300 - Mystery Electrical

["'Jay Williamson' via Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>]

Hello,

The hum is most likely the transformer that powers you Ellectrolumination. I’m having similar issues with my lights. I have a newly rebuilt headlight switch. When I pull,it out one click, the left turn signal arrow illuminates. My turn signals have never worked correctly. The right signal flashes, but you have to hold the lever over. The left signal does not flash, but will stay in place.  I figure it’s a grounding issue, but I’ve not had time to chase it down

Will be watching comments here

Jay Williamson

Sent from my iPad

On Jul 12, 2025, at 8:46 PM, 'Matt Allyn' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Was working on our 300 Sport today.

Seem to have some mystery electrical things going on….

Mystery Issue #1:

I wanted to check the front running lights.

Pulled out the Headlight Switch 1-click to activate them.

There is a high pitched hum (or whine) coming from the headlight switch.

And the passenger inner indicator, little green arrow was illuminated.

Neither bulb, up front, came on, so I pulled the lenses & discovered dead bulbs.

I replaced both bulbs in front of the car & rechecked it all.

Passenger one works fine now & the dash arrow was not illuminated on the passenger side anymore.

Drivers one is super dim (at the bulb) and the dash arrow on the drivers side is now lit up.

I had used electrical cleaner spray inside both bulb sockets & also used it on the connector for the front indicator that lives in between the radiator & the grill.

Anyone know what causes the bulb to barely illuminate in running lights mode, yet its other filament flashes bright in indicator mode?

Mystery Issue #2:

The electrical hum at the headlight switch.

What the heck does that mean?

Thanks!

Matt Allyn

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