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Old 17-06-2012, 03:04 PM
Richard L Richard L is offline
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Join Date: Oct 2003
Location: England
Posts: 4,936
Default Re: problems with FAV solenoid - no work, but getting very hot!

I have a question on pin 1 test: Is the FAV+ cable plugged into the controller during your test?

The strange part of this test is: pin1 should not see any voltage until the FAV is plugged in. When it is pin one should see 12V (battery voltage) all the time, regardless of idle of load.

We might have found something.

The next test:
(still without the transistor)

There are three pins for the transistor, can you check all three. The center pin is the same as test pin 1. Theone on the left is power ground (black molex wire). The one on the right is PWM drive signal. At idle it should read below 1V and over 5V at full load. This is donew with the RJ connectors facing away from you.
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Richard L
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