Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
good afternoon my name is ***** ***** I will assist
the pcm you purchased, did you have it flashed to your truck?? it needs to have an operating system just like a computer or it wont work
does the check engine light come on with key on engine off???
are any other wires at the tps have 5 volt reference????
check engine light should be on with key on engine off.
if it is running, then I need the code. do not clear anything until the failure is found. clearing does nothing.
jumps around?? what voltage?? looking up wiring diagram
ok, the black wire should read 0 volts as it is a ground
the other 2 should read 5 volts solid. this is with the connector removed from the sensor.
re check for me please
and the voltages????
why are you connecting to anything??? I just want the voltage with the connector off and nothing else. you jumping wires may be damaging the pcm you just installed
Black 12 volts with with black lead on connector and red on Batter power source
your words. there is never 12 volts to this sensor if you applied 12 volts to the black wire, you damaged the pcm
because the pcm is no good and needs to be replaced.
buying used from e bay is always a risk. it is a used part not new. yes, it can be bad.
you need a correct flash from a shop with the proper scan tool in order for it to work.
that assuming your pcm was the original failure
how are you making out
definitely. and that is the correct way to get the part. I have never had success with buying anything off e bay electronic for a car.
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