Thanks Jeb... yes parts are not available at all in Pakistan. and i have less knowldge... on car so mechanic give me more hard time and some time 1$ thing they sold me to 10$ .

but i am sure with fourm i will learn lot and maintian my Buddy duster.

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L37 was suposed to be "Delete Opera Lamp" for 1975+

But Dusters don't get a "B" pillar light...

-D.Idiot

From my go-to guy for decode stumpers:

"Probably it was built in a plant that built cars that got opera lamps and given that what is entered on the tag is at the discretion of the machine operator, his brain could have been shifting between two car lines at the moment he entered L37 on that Duster's tag."

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

None of the pics are showing for me. Faulty links, I think.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

The pics arent showing for me either

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I believe we have a probable solution to the "L37" and "A3" mysteries:

• Codes that look like "A3" (might be "A1", "M2", etc.) often appear on St. Louis tags just before "END". It might be a line or shift indication. It does not have meaning with respect to the car's equipment.

• "L37" is probably supposed to be "L73", which in 1975 was the Fuel Pacer system. This consists of a vacuum switch and wiring running to the right fender-top turn signal repeater. If you were driving uneconomically, stomping on the gas pedal, manifold vacuum would drop, trigger the switch, and the RH repeater would light up to remind you not to drive so "fuellishly". This system was available on the A-bodies in '75, and this particular '75 is equipped with the repeaters, so that's probably what that is and either the line worker creating the tag punched "L37" instead of "L73" or it was a reading/transcription error for this thread.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

it is L73 i have confirmed .. actually it was a typo....

but it open the very good discussion ..

Thanks to all

SHK

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Dan can i get the complete L73 funtion wiring diagram to fix this system back to working in my Duster.

Thanks

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Hmm, my cousin had that option on his 1975 Plymouth Fury (the smaller Fury, not the Gran Fury style), and it was the LEFT side fender mounted turn signal that illuminated under strong acceleration.

-Mac

Yes -- it is in the factory service manual, which you should definitely get.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.