part under dash by speedometer/ tach
Thread Starter
3rd Gear
Joined: Dec 2012
Posts: 3
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part under dash by speedometer/ tach
replaced wiper switch on my 1981 all ok but there is one piece i removed not sure where it goes part # 25007218 small black plastic piece looks like it has two small lights in it please help. thanks first vette
Race Director
Joined: Apr 1999
Posts: 15,146
Likes: 477
From: NM
Thread Starter
3rd Gear
Joined: Dec 2012
Posts: 3
Likes: 0
black plastic with two small lights
Race Director
Joined: Apr 1999
Posts: 15,146
Likes: 477
From: NM
Same part number and the description sounds the same: "The yellow part is an AC part with the following part number 25007278. It has green, red and black wires coming out of it. The black piece has 2 small lights in it with the following part number 25007218. The connector that the yellow piece connects to has 3 wires: Brown, black/white and pink/black. It leads back into the same harness as all the wires from the speedo/tach connector go in."
Turned out to be a speed sensor to relay the signal to the computer.
Just a shot in the dark.
Tom...
Turned out to be a speed sensor to relay the signal to the computer.
Just a shot in the dark.
Tom...
Le Mans Master
Joined: Aug 2010
Posts: 5,339
Likes: 546
From: Central Texas
I'm doing the same thing on my 1981. Does this "speed sensor" need to be connected if the computer system is no longer operative. It's kind of a pain in the @ss to get the cluster back in while its connected.
