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Author Topic: new to eagles. unknown relays!?  (Read 949 times)

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Offline 88formula

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new to eagles. unknown relays!?
« on: September 18, 2015, 01:28:43 PM »
While diagnosing my no power to the ecm I found all these relays under the hood and I have no clue what they are for... any help would be appreciated.





And what is this guy for? There's a little circuit board inside it?!



More questions!!!! Does anyone have a picture of where the factory foot lamps are supposed to go in the interior? Mine are just laying on the ground.. 

Offline macdude443

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Re: new to eagles. unknown relays!?
« Reply #1 on: September 18, 2015, 01:45:05 PM »
The box with the circuit board is the diode trio.  That tells the sol-vac to kick in when the rear defrost, A/C or headlight are on.  The footwell lights normally mount to the rear of the package tray.  I've only seen one mounting hole in an SX/4 on the drivers side.  I drilled one for the passenger side.
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Online vangremlin

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Re: new to eagles. unknown relays!?
« Reply #2 on: September 18, 2015, 01:53:00 PM »
Picture # 3, I have seen the fog light relay mounted in that location before, but can't remember if there might something else that also gets mounted in that vicinity.
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Offline 88formula

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Re: new to eagles. unknown relays!?
« Reply #3 on: September 18, 2015, 03:25:52 PM »
Awesome! !! I was wondering where that diode pack was located! And the factory fog lights don't work ether, now I got a place to start diagnosis!

Offline macdude443

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Re: new to eagles. unknown relays!?
« Reply #4 on: September 18, 2015, 03:42:34 PM »
The factory fog lights (that I've owned, anyway) have all had issues with corroded or burned contacts where the bulbs seat.  They use H2 bulbs.
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Offline Sandeagle

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Re: new to eagles. unknown relays!?
« Reply #5 on: September 27, 2015, 04:23:20 PM »
Isn't the diode trio usually in the alternator?

Online amcfool1

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Re: new to eagles. unknown relays!?
« Reply #6 on: September 27, 2015, 05:45:26 PM »
hi, in picture  #1 the small square one is the manifold heater relay, and the larger rectangular one is the horn relay. gz

Offline 88formula

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Re: new to eagles. unknown relays!?
« Reply #7 on: September 27, 2015, 10:11:32 PM »
Sweet!! I'm going to unplug them and test to verify.

I know what your thinking about in the alternator,  there are 3 sets of 3 diodes in the alternator. The diode treo that were talking about on the fire wall is to boost idle when headlights are turned on, or the rear defroster, or the a/c compressor is engaged.

Offline Sandeagle

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Re: new to eagles. unknown relays!?
« Reply #8 on: September 28, 2015, 03:58:35 PM »
Ok,  you need to tap the gas to get that to engadge. I turned the idle down then turned stuff on and that's why the idle went back up till I turned stuff off.  Thanks

Offline carnuck

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Re: new to eagles. unknown relays!?
« Reply #9 on: October 04, 2015, 02:14:29 AM »
Sweet!! I'm going to unplug them and test to verify.

I know what your thinking about in the alternator,  there are 3 sets of 3 diodes in the alternator. The diode treo that were talking about on the fire wall is to boost idle when headlights are turned on, or the rear defroster, or the a/c compressor is engaged.

2 sets of 3 diodes in each alternator. (Delco ones) 3 windings in the alt with each stator set having a positive and negative diode to cut the other half of the Alternating current the alternator makes to turn it into Direct current, "rectifying" it.

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