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Old 04-15-2009, 07:15 AM
ctwright ctwright is offline
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Re: 99 Rav4 no power to fuel pump

Quote:
Originally Posted by mastersat1 View Post
The plug to the pump only has 2 wires. I checked voltage there unplugged from the pump. If relay is under dash, will it be labeled. You normally will hear it click when turning key on. I don't hear any under dash.
I already know your plug has two wires who said it didn't. One of those two wires is going to your relay I may have accidentally wrote which wires instead of wire when I said you can tell which color wire is going to your relay(which will have 3 other wires also going to it) if so my bad. This might sound like a dumb question but you did already check your fuse first right, if that is blown you will not get power to either your control circuit side(coil) or power circuit side(contacts) of the relay?



Relay coil = @@@

Relay Contacts = -\ -

12V+ in Run or Start --~~~(fuse)-------------- @@@ ------- ECM ground pulse (control circuit)

12V+ in Run or Start---~~~(same fuse)---------- -\ --------- Fuel Pump ------Ground (power circuit)

Hope that helps that is how it should be.

Last edited by ctwright; 04-15-2009 at 08:04 AM.
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