Mystery indicator light

andy72 · Jul 4, 2014

I bought a 1972 mach 1 351 ram air car last week. Just to the left of the headlight switch there is an indicator light sticking through a hole. There is no bezel aroung this light. It appears to be a "factory" socket as it is plugged into the wiring harness under the dash. The owners manual shows two possibilities. The first one is #31 REAR WINDOW ELECTRIC DEFROST INDICATOR LIGHT (OPTIONAL), (the car doesn't appear to have any kind of rear window defrost), the second one is #26 PARKING BRAKE WARNING LIGHT (OPTIONAL). The wire colors on this light socket are PURPLE-ORANGE and LIGHT GREEN-RED. I cannot fing this light or wire colors on the wiring schematic downloaded from this web site. Anybody got an idea of what this light is for?

Thanks

jbojo · Jul 4, 2014

I bought a 1972 mach 1 351 ram air car last week. Just to the left of the headlight switch there is an indicator light sticking through a hole. There is no bezel aroung this light. It appears to be a "factory" socket as it is plugged into the wiring harness under the dash. The owners manual shows two possibilities. The first one is #31 REAR WINDOW ELECTRIC DEFROST INDICATOR LIGHT (OPTIONAL), (the car doesn't appear to have any kind of rear window defrost), the second one is #26 PARKING BRAKE WARNING LIGHT (OPTIONAL). The wire colors on this light socket are PURPLE-ORANGE and LIGHT GREEN-RED. I cannot fing this light or wire colors on the wiring schematic downloaded from this web site. Anybody got an idea of what this light is for?

Thanks

I am going to say it's the PARKING BRAKE WARNING LIGHT. My schematic says that the Purple-Orange H (hash) and Light Green-Red D (dash) go to that light, its a 73 schematic, hope this helps.

sm3570 · Jul 4, 2014

I tend to agree. I have the same.

Mister 4x4 · Jul 4, 2014

I guess the word "PARK" was rubbed off, or something, eh?

midlife · Jul 4, 2014

Easy enough to check for parking brake: turn key to ACC, then engage the parking brake. Does the indicator light go on?

imusa76 · Jul 4, 2014

can you post up a picture?

andy72 · Jul 4, 2014

jbojo and steve, thanks i'll check 73 schematic. eric, no bezel on light and iyman ...see picture of light. The hole is roughly cut,..kinda suspicious. I've had the 67 for 33 years. done. needed a new project.. just got the 72 mach. the interior's a pretty shot and this light was an unknown THANKS much guys...

eddyw · Jul 5, 2014

no warning light above glovebox"FASTEN SEAT BELTS" ('71 -'72)= maybe "BELTS"

warning light above glovebox"FASTEN SEAT BELTS"('72 -'73)= maybe "PARK" on the bulb holder(option, see switch on park brake pedal)

goodnigh · Jul 5, 2014

In my '71 Grande the light nearest the headlight switch says "BELTS"

and the one next to that says "PARK".

My Marti report lists "deluxe belts/warning light" so I am guessing

"PARK" in your case.

mike

Kit Sullivan · Jul 5, 2014

It may be an aftermarket light someone added for an alarm " activated" light.

OMS · Jul 5, 2014

It may be an aftermarket light someone added for an alarm " activated" light.

No his pic shows a factory housing for the PARK or BELTS light.

jbojo · Jul 5, 2014

no warning light above glovebox"FASTEN SEAT BELTS" ('71 -'72)= maybe "BELTS"

warning light above glovebox"FASTEN SEAT BELTS"('72 -'73)= maybe "PARK" on the bulb holder(option, see switch on park brake pedal)

I checked my light today and it only has "Brake" on it

mach1chick · Jul 7, 2014

I have the same light, just noticed it. Haven't figured mine out either. I do have rear defroster grid but not hooked up. Obviously that isn't it since you don't have it.

And my parking brake isn't hooked up so can't be that.

CZ-75 · Jul 7, 2014

no warning light above glovebox"FASTEN SEAT BELTS" ('71 -'72)= maybe "BELTS"

warning light above glovebox"FASTEN SEAT BELTS"('72 -'73)= maybe "PARK" on the bulb holder(option, see switch on park brake pedal)

Click to expand...

I checked my light today and it only has "Brake" on it

That's what mine says too. '73 vert

Mystery indicator light

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