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Retrieving Codes causes the car to go whacky!


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11 replies to this topic

#1 oregonloyale

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Posted 03 December 2006 - 12:38 PM

OK so I have a intermittent check engine light .
I cleared the codes , since the car is new to me , and drove it around for a day or 2 .
the CEL came back.
Went to plug the 2 terminals together under the dash and when i put the key into the "on" position.
The car starts to go into what seems like a diagnostic cycle.
The fans start turning off and on, cooling and heater fans.
Starts buzzing, etc.
Its a real whacky thing.
The check engine light doesnt flash at all, just stays on when its in the retrieval mode.
Any ideas?
Until I figure it out Ill never be able to retrieve codes.:mad:

#2 porcupine73

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Posted 03 December 2006 - 12:41 PM

Dude I think you have the wrong connector.

#3 OB99W

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Posted 03 December 2006 - 12:46 PM

Dude I think you have the wrong connector.

Probably :) ; see:
http://endwrench.com/images/pdfs/EWPreOBDAug05.pdf

#4 oregonloyale

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Posted 03 December 2006 - 01:39 PM

Well I have done this before on a 90 legacy.
The plugs are a 2 terminal and green in color under the dash , below the steering wheel.
Does this not sound correct?

#5 Manarius

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Posted 03 December 2006 - 02:32 PM

Green into black, not green into green.

Green into green is diagnostic mode. Green into black is "blink code" mode.


#6 oregonloyale

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Posted 03 December 2006 - 04:37 PM

ahhhhh................ much betyter .
Thanx:grin:

#7 OB99W

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Posted 03 December 2006 - 04:44 PM

Well I have done this before on a 90 legacy.
The plugs are a 2 terminal and green in color under the dash , below the steering wheel.
Does this not sound correct?

http://www.troublecodes.net/Subaru/

#8 WoodsWagon

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Posted 03 December 2006 - 10:44 PM

Green into black, not green into green.

Green into green is diagnostic mode. Green into black is "blink code" mode.


On my 92 leg wiring harness, the green and black connectors are very different. You couldn't cross-connect the colors. The greens put it in the diagnostic mode and spit out codes while you're driving the car. The blacks do something, I forget what, but I don't mess with them.

I have to say that the diagnostic mode is a pretty good default. I'm using it now to run my car, and other than a crackle in the exhaust on coast or decel, it runs great.

#9 Legacy777

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Posted 03 December 2006 - 11:25 PM

You need to connect the black connectors. Green connectors are for an "active diagnostic"

http://www.ultimates...8662#post428662

#10 Manarius

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Posted 03 December 2006 - 11:54 PM

You need to connect the black connectors. Green connectors are for an "active diagnostic"

http://www.ultimates...8662#post428662

Josh, on my car the connectors are black and green...I have two green and one black. The black one into the green one makes the CEL blink its codes...


#11 NoahDL88

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Posted 04 December 2006 - 12:25 AM

while the "smart" side of the green and black are different. the "dumb" side for both is just a ground, so if you use the green into the black, or visa versa, it won't make a difference as far as the gound is concerned.

#12 Legacy777

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Posted 05 December 2006 - 12:18 PM

Josh, on my car the connectors are black and green...I have two green and one black. The black one into the green one makes the CEL blink its codes...


That works for the reason Noah mentioned, but you really should have another black connector somewhere.




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