WHAT VOLTAGE SHOULD I HAVE
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1996 Toyota Tacoma Question: WHY WOULD I HAVE ONLY 5 VOLTS AT THE FUEL PUMP CONNECTION
Answer #1JohnPierceAutoCare from John Pierce Auto Care, May 15, 2012, 10:05Enthusiast
It all depends on which connector and pin you're looking at. If it's a pcm wire then it could easily be a 5 volt reference voltage. You would need to find a wiring diagram with pin diagram and follow it. Before you go too much farther with that, you maybe should look at taking it to a shop, depending on what you're trying to accomplish.