Quote:
Originally Posted by larrykiss
EFI main relay, with relay removed continuity between pins 1 & 2 if open replace, no continuity between 3 & 5. Located in engine compartment in fuse relay box. if you apply battery voltage across 1 & 2 should have continuity between 3 & 5.
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The only five pin relay is this one Toyota part number 85952-17010 Toyota sites say this is the main Fan relay
My fuse box cover shows a little black relay withonly four pins to be the EFI relay.
i know the little black one that has 4 pins is good cause I switched it with the Horn relay and the horn worked with either relay plugged in.
The Toyota relay number 85925-17010 has pins aligned like below.
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|E 3|
Pins E and 3 are the only two that would engage the relay when 12 volts was applied. There arent any other numbers on the pins.
Two questions.
1. How do I know what pins are what?
2. Is the 5 pin relay actualy the fan relay or is it the EFI relay?
Oh, I pulled the old fuel pump out and directly applied 12v to it and it wouldnt do anything. I bought a new airtex fuel pump (dont know how good of quality it will be) But at any rate after installing it, the car still doesnt start. I cant hear the fuel pump come on. So I must have some sort of electrical problem.
I just need to figure out which relay is which, and then figure the pins out in order to test it.