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07 TrailblazerSS 2WD
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Discussion Starter #1
Does anyone on here work for a dealer that can give me a troubleshooting list for a dead speedometer??

I've checked all the fuses, checked the wires at the PCM. Can't figure out why it would crap out.

To be noted: It died after I checked to make sure the added pins on theLS1 fan harness from pcmforless were properly installed after my fans quit working.
 
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