P0102 Toyota camry 2007 v6. how to check for low voltagei nput

Question

Before I purchase a new MAS how do I rule out a bad connection. I have 5 wires on the connector; the first on the left gives me 5 volts, the other four no meaningful voltage, .01 to .05. Which is my low voltage input? Or are the other 4 simply ground wires, 12 v on the bat pos?

Cheers

Answer 1

P0102 MAF circuit low input

On one of the 5 input terminal is a battery voltage the (B+) which is the input to the MAF this is what codes P0102.Its source is fron the EFI fuse which comes from the EFI relay , check those area. This is with the MAF terminal disconnected and key on.