Forgive my ignorance, but how do you pronounce
PIWIS? Pee-wees, P-I-W-I-S? Also, I have researched it and have read what the diagnostic and programming tool can do, but have not been able to find out what the letters actually stand for. I have what I suspect to be a faulty engine fan sensor switch and want to ask my dealer to run a
PIWIS readout, but don’t want to sound like a dimwit when I make the request…