what sensor controls odometer

Reply Subscribe

Thread Tools

Search this Thread

Jan 3, 2007 | 01:11 AM

shaun

Thread Starter

12 Second Club

Joined: Nov 2005

Posts: 1,847

Likes: 0

what sensor controls odometer

hey guys my cuzins 98 z28 a4 that he got about 2 months ago is acting up.
the odometer stoped working yesterday then today it worked then stop again.
since its a electric speedo what sensor or system controls it?
i had a 95 eclipse 5 speed that was my dd and a sensor on the tranny went out and stoped the odometer so thats why im figuring thats the prob.
thanks homies

Jan 3, 2007 | 03:45 AM

camaroguy26

TECH Resident

iTrader: (21)

Joined: Sep 2005

Posts: 820

Likes: 0

From: New Jersey

the "VSS" (Vehicle Speed Sensor) can't remember what side it's on. I'm guessing the left? You only have two connectors in the A4 with 2 wires and the big one for the computer. I believe the VSS goes through the PCM then to the odometer

Jan 3, 2007 | 01:11 PM

shaun

Thread Starter

12 Second Club

Joined: Nov 2005

Posts: 1,847

Likes: 0

thanks man but does any one know exactly where it is?

Jan 3, 2007 | 10:03 PM

shaun

Thread Starter

12 Second Club

Joined: Nov 2005

Posts: 1,847

Likes: 0

bump.

Jan 4, 2007 | 02:44 AM

GOaT Cheese

TECH Enthusiast

Joined: Jul 2006

Posts: 638

Likes: 0

From: San Diego

Quote:

Originally Posted by shaun

thanks man but does any one know exactly where it is?

To answer your question exactly, the PCM controls the odometer. It recieves a frequency signal from the VSS (two wire, yellow w/black and black) sensor that is mounted on the passenger side of the transmission extension housing. Then the PCM sends a converted analog speed signal to the instrument panel cluster.

Jan 4, 2007 | 11:28 AM

shaun

Thread Starter

12 Second Club

Joined: Nov 2005

Posts: 1,847

Likes: 0

so if this sensor went bad what would happen?
would the odometer stop?
the car had some tranny work before he got it so maybe the shop sckrewed up some thing