Q: Need to know if i need a new pcm
i recently scanned my truck for codes and had a code show about a problem with the pcm. i forgot the number but it said to test a yellow wire with a black strip the 10 pin going to the tcm from the pcm and it said the voltage should be around 12 volts and it is above 14 volts. We do have a chip tune on it but cant find the chip to remove them so i dont know if chips can make that or if its the pcm its self thats bad
My car has an automatic transmission.
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