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Old 09-23-2008, 04:05 PM   #1
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2011 Tacoma

Default two green mystery plugs under dash

I was looking under my dash and found these two green 2-prong plugs next to each other. They attach to each other perfectly, but I've no idea what they are for and if they are supposed to be connected. I did recently have an alarm installed on my car.

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Old 09-23-2008, 04:07 PM   #2
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call the shop that put it in and ask them if they know anything about it
it could be disconnected for a reason
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Old 09-23-2008, 04:08 PM   #3
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I think that puts the ecu in test mode or something like that, it's suppose to be disconnected.
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Old 09-23-2008, 04:25 PM   #4
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A buddy of mine installed the alarm for me. He never mentioned anything about it and I was there when he did the installation. I guess I'll give him a ring. The car has been running fine without it with no hiccups. Just curious.
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Old 09-23-2008, 04:26 PM   #5
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I also remember reading something in NASIOC that mentions that plug as a ECU test mode initializer. But I think in the thread that I had read, the connectors are white and not green.
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Old 09-23-2008, 04:28 PM   #6
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they're are the green test mode conectors, when you change programs via the cobb they tell you to plug them together, then when your done loading the program you disconnect them . The dealer prob. uses them when checking for codes, reading ecu, ect..
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Old 09-23-2008, 04:48 PM   #7
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Originally Posted by gte123v View Post
I think that puts the ecu in test mode or something like that, it's suppose to be disconnected.
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Old 09-23-2008, 04:55 PM   #8
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Yes they do put the car in test mode, and most definately they need to be disconnected unless you are undating the ECU or something to that effect.
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Old 09-23-2008, 08:33 PM   #9
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there is no harm in plugging them in... plug them in, then turn the key and watch your car do all kinds of fun things by itself. (yes it is a test mode)
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Old 09-23-2008, 09:16 PM   #10
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yup, just leave them the way they are. until you buy yourself a cobb accessport and then enjoy
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Old 09-23-2008, 09:50 PM   #11
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Posted a gazillion times here, leave them unplugged.
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