'95 Chevy Corsica, dead speedometer

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'95 Chevy Corsica, dead speedometer

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Chevrolet Forums >> Past Vehicles >> Beretta, Corsica & Lumina >> '95 Chevy Corsica, dead speedometer

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'95 Chevy Corsica, dead speedometer - 8/29/2006 11:05:11 PM

yoopers

Posts: 2
Joined: 8/29/2006
Status: offline

Our '95 Chevy Corsica with the 3.1 V-6 engine suddenly lost the speedometer. One day, it stuck on 30 mph then the next morning it was dead. As I understand the system, the Vehicle Speed Sensor sends a signal to the ECM which in turn sends a signal to the electronically operated instrument cluster. Usually it's the VSS but I bought a new one today, installed it and still have the same problem. The other option is that the instrument cluster is bad which we would have to send out for repair.

What's bothering me is that I had just finished installing an after-market radio the day before and was messing with all the wires under the right-side dash, where the ECM is located. I don't think it's a problem though because when I turn the key to run, I see an ever so small jump of the speedometer needle, which tells me that it's getting some sort of signal. I'm afraid it may be the instrument cluster that's bad and even more afraid of what it would cost to buy a new one or have the original one repaired.

The other symptom is that the ABS dash light is on.

Post #: 1

RE: '95 Chevy Corsica, dead speedometer - 8/30/2006 12:50:00 PM

kcb37

Posts: 504
Joined: 7/3/2006
Status: offline

You may have to take it to a shop for the abs. I think I would agree on the instrument cluster though.
If you can find out how much power it should have a a certain speed it wouldn't hurt to try and test it.

(in reply to yoopers)

Post #: 2

RE: '95 Chevy Corsica, dead speedometer - 8/31/2006 1:16:39 PM

yoopers

Posts: 2
Joined: 8/29/2006
Status: offline

Nailed the speedometer problem! A trip to the junkyard proved fruitless. I pulled an instrument cluster out of a '95 Beretta and put it in the Corsica but it didn't solve the problem. So I retuned home and continuted to look. Someone before us had installed an aftermarket cruise control and tied into a lead coming from the ECM but didn't do a very good soldering job. Buried in one of the ECM's wire bundles, I found that the cruise control wire had pulled away when I moved wires around during the radio install and separated the speedometer feed wire. A little soldering job later and the Corsica is breathing healthy again. Sure is a great feeling when the problem is solved and we can get on with life.

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