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Speedometer, odometer, cruise not working on 2004. Changed transmission speed sensor, still noda. Any ideas?
 

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If you datalog the ECU, does it see speed while you're driving down the road?

If not, check the speed sensor wiring back to the ECU.

If it does, check the speedometer on the cluster.

RwP
 

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Speedometer, odometer, cruise not working on 2004. Changed transmission speed sensor, still noda. Any ideas?
Speedometer, odometer, cruise not working on 2004. Changed transmission speed sensor, still noda. Any ideas?
Speedometer, odometer, cruise not working on 2004. Changed transmission speed sensor, still noda. Any ideas?
things have changed a lot thru the years but years ago i had a buick with this problem. i found under the hood in the speedometer cable a round canister that had a flat round wheel in it. i took the wheel out and the speedometer worked but the wheel had something to do with the cruise so that no longer worked but at least i had a speedometer. this could be outdated info but you never know, good luck. 01hunter570
 
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