Whats This??????

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Apr 23, 2007 | 12:20 AM

fixnair

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From: Sapulpa OK

Whats This??????

Under my dash at the OBD 2 connector there is a small push button. It is located on the OBD 2 bracket just above and to the left. Pressing it, as I looked at the instrument panel for some change, I see only the Odometer numbers dim.
Anyone have any clue as to what this thing does?

Steve

Apr 23, 2007 | 05:08 PM

cookie88

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Joined: May 2001

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From: Cabot, Arkansas

Good question. I can find no such button on mine. Does it have an aftermarket alarm or something?

Apr 23, 2007 | 05:12 PM

totin_tools

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Joined: Sep 2006

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From: Irmo, SC

When I had the keyless entry on my truck I had a button similiar to that. It was for the bypass start in case the brain quits working in the keyless system. Just a thought.

Apr 23, 2007 | 05:25 PM

fixnair

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From: Sapulpa OK

Yes it does have an aftermarket alarm but this thing sure looks like an intergral part of the OBD 2 bracket. Thanks for the replies.

Steve

Apr 23, 2007 | 05:30 PM

SpringerPop

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From: La La Land

Valet-mode switch?

Pop

Apr 23, 2007 | 06:29 PM

HP junkie

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From: H-town, MN

If I remember correctly it would be an override switch for the alarm in case your remote went south. It would let you start the truck by pressing the button and a number of key turns on the ignition or vise versa. You might want to check out what kind of alarm you have and see if you can find a manual of some sort to be sure.

Apr 24, 2007 | 03:07 PM

fbilly420

Senior User

Joined: Dec 2006

Posts: 307

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From: Tooele, Utah

sounds like an alarm override switch to me. OBD II connectors should only have diagnostic plug on them

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Apr 25, 2007 | 12:26 AM

fixnair

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From: Sapulpa OK

I had occasion to be under the dasboard again today hooking up the water control valve on the heater circuit. Geting ready for hot weather. Supposed to be 90° here Friday. I followed the wiring back from this pushbutton and you guys were right, it is part of the alarm system. The alarm system does not work so I cannot tell you what it does but thanks to all who responded.

Steve