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Subject:Re: Relay powers up when battery connected
From:Steve Delanty
Date:Mon, 1 Sep 2003 16:06:11 -0700

At 04:30 PM 9/1/2003, you wrote:
>Thanks for the info.  I'll check.  If I do that's a plus, I guess.
>
>So, does that relay always pull when the battery's attached?  That would be
>silly.  Under what conditions would it drop?  Engine running?  If so, they got
>the logic inverted.  :)

The relay is under the drivers seat. It's controlled by the blue wire that
connects to the alternator D+ terminal. The relay should NOT be energized
unless the engine is running and the alternator is charging.

Disconnect the blue wire at the alternator and check the D+ terminal
with a voltmeter. With the engine not running, you should have 0 volts.
With the engine running you should have 13+ volts. (charging voltage)
If this is not the case, then you have an alternator problem.

The relay is the "load reduction relay" and it's used for the Westy
refrigerator, and also for controlling the charging of a second battery.
If you don't have a fridge or a second battery, you can leave the
blue wire disconnected and not worry about it.

Oh yeah, it also provides power to the OX sensor idiot light timer.
With the blue wire disconnected, the OX light on the dash won't work...

Steve
EJ22 -> '86 Westy "Escape Pod"