Hi ,
Just some quick info on this , I have not worked on a 56 .
57 however and many other years, there are three circuit breakers inside the headlight switch protecting the various lights . they are self restoring thermal breakers will click on and off if overloaded .
However they are about 20 Amps to open and if a short happens on gauge lights the dimmer winding resistor on the headlight switch is in series with bulbs , and it won’t draw 20 Amps ,if a short , unless full on . What happens is resistor winding then lights up like a toaster and soon burns open .No lights . Setting the dimmer to full on might bring back lights as resistor is out of circuit or if still shorted wiring the thermal breaker will click on and off . On 57 up headlight switch it is the white ceramic thing at front of switch
Most shorts on this circuit happen right at the bulb sockets , wire gets frayed and touches socket metal . Happens trying to change bulb
I do not know about 56 but 57 through 61 at least they are orange wires . Is 56 plastic wire or still rubber?
May this helps the diagnostics at least , look at FSM or note color of wires out of bulb sockets on the gauges . You will find that color , usually 2-4 wires all together on one switch connection . Put voltmeter there , to ground you will know if dash light power exits switch , dimmer set to full on .
Good luck !
Jkg
Sent from my iPhone
On Jul 24, 2022, at 3:18 PM, Ron Waters <ronbo97@xxxxxxxxxxx> wrote:
I would bet the problem is at the headlight switch.
Broken, frayed, burnt old wiring. Pull headlight switch. Replace nasty wiring
with new wiring in correct gauge and color. No fuses in the circuit,
IIRC.
BTW, I have a nice '56 Chrysler Blower switch, if anyone is
interested.
Ron
Hello,
My friend Jim (56 Chrysler Newport Conv) has lost his gauge
and some other dash lights, although I believe the map light works.
I’ve looked through the Electrical Section of the Tech page
and especially Item 29 John has prepared, but I didn’t see anything about fuse
locations or other protection for that circuit. (When I copied and pasted,
the No. 29 miraculously changed to no. 1).
Can someone provide some help for Jim? That may
also be the impetus for Jim to join our Club.
Thanks,
Carlton
- Lamp,
fuses, and circuit breaker listing for the 1955-1965 Chrysler
line by John Holst
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