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Old 08-08-2012, 05:37 PM   #10
Scooby Guru
Member#: 53443
Join Date: Jan 2004
Location: Anchorage, AK
2001 LL Bean Outback


Assuming you are making the voltage measurement using ground as your reference; you are not understanding the wiring diagram correctly. The drawing shows the fuse 11 is directly connected to a number of things including the coil of the relay, with the other end of the coil tied to ground. When the ignition is turned on power comes through the fuse and turns on the relay. There should be 12 volts on the wires tied to that fuse. Either the fuse is bad or there is a open connection between the fuse and the relay coil. Use your meter to see if you have 12 volts on both sides of the fuse, using the slits on top of the fuse to put your probe on and using ground as your reference point for the meter. If there is 12 volts on both sides of the fuse then check the back side of the fuse panel and see if there is a bad connection to the output of the fuse connection. If that is ok then there is a open wire connection between the fuse panel and the grn/red wire going to the relay.

Refering to your question about the 1 volt reading you saw. If the only thing that fuse supplied power to was the relay coil and the fuse was blown your meter would show zero volts. The thing is that the fuse is tied to other things, which includes the ECU. We don't know how things are designed inside the ECU but chances are that something inside the ECU is back feeding the 1 volt unto the lead. It really doesn't matter what is causing it, you just need to understand Ohm's Law explains why that sort of thing happens.
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Last edited by Cougar4; 08-08-2012 at 05:54 PM.
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