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How to disconnect the Speedometer on 2007 Chevrolet Tahoe?

January 2nd, 2011 · No Comments

I wanna know how 2 disconnect the speedometer. Not from the transmission but from the back of the instrument cluster… Wich wires do I need 2 cut in order 2 do this?

- Since you stressed speedometer, then it sounds like your not trying to fudge your mileage (which you cannot do anyway). You will need to get an electrical schematic and see what color wire in the harness on the back of the instrument cluster you need to disconnect. But why?!
FYI, the mileage is stored in the ECU. And you cannot disconnect the pick up in the tranny because it is required for the transmission to operate (know when to shift).
- Find the fuse block in the left side of the engine compartment. Find the largest wiring harness coming out of the fuse block. (it is about 2″in diameter.) Disconnect the battery first to avoid creating sparks, then use a large wire cutter or bolt cutter to cut through the entire harness.
Make sure all the wires are cut through, you can finish up with a small wire cutter if you missed any.
Tape off the exposed wiring with electrical tape to prevent short circuits.
When you reconnect the battery the odometer will no longer register mileage. Hope this helps.

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