Not sure what those wires you are missing are for but on mine it came without them. I have a sticker covering the hole in the pcb your bottom arrow is pointing to.
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Havnt seen this one yet,not sure of the year?
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I kid,I kid.![]()
Not sure what those wires you are missing are for but on mine it came without them. I have a sticker covering the hole in the pcb your bottom arrow is pointing to.
Late model speedos had two tabs coming out that top slot. One tab was wired to ground, the other was wired to slot #7 on the circuit board - that bottom arrow is pointing to the hole. The '80 manual says that slot 7 is to a REED/READ? switch connected to the ECC - emission control computer. My guess is it's a VSS - vehicle speed sensor coming diretly from the speedometer?
I am in the process of replacing my speedo and would love to know how having or not having these connections affects performance. It seems many have intentionally removed them. If my '80 has the smog equipment intact , don't I need these connections?
I can see signs of a sticker having been plastered over my hole too Alex. (I suspect the guy who sold me the cluster was inquisitive and had peeled it off.)
Thanks for enlightening me on the purpose. ....... That makes a lot of sense. (So all diesels will be missing that stuff.)
Late model speedos had two tabs coming out that top slot. One tab was wired to ground, the other was wired to slot #7 on the circuit board - that bottom arrow is pointing to the hole. The '80 manual says that slot 7 is to a REED/READ? switch connected to the ECC - emission control computer. My guess is it's a VSS - vehicle speed sensor coming diretly from the speedometer?
I am in the process of replacing my speedo and would love to know how having or not having these connections affects performance. It seems many have intentionally removed them. If my '80 has the smog equipment intact , don't I need these connections?
what happened here some of the pics are gone ?? too bad
Yikes! My pictures disappeared too! Bummer..
Do you have any of this cluster, need one