Black box behind rearview mirror
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New User
Joined: Nov 2005
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From: Northern Wisconsin
Black box behind rearview mirror
I just picked up a 04' Screw XLT. I noticed that there is a black box
with on push button on it that is mounted to the back of the rearview
mirror, that is the standard plain mirror. The box is about 3" by 3" and 3/4 thick, and has a wire harness attached to it from under the headlinner.
Any1 know if this is something that was added at the factory, or more likely a remote starter or something to that order... I'll try and take a pick on my next day off when its light out.
-steve
with on push button on it that is mounted to the back of the rearview
mirror, that is the standard plain mirror. The box is about 3" by 3" and 3/4 thick, and has a wire harness attached to it from under the headlinner.
Any1 know if this is something that was added at the factory, or more likely a remote starter or something to that order... I'll try and take a pick on my next day off when its light out.
-steve
Junior User
Joined: May 2004
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That little box houses the electronics for the compass. It is what is known as a "flux gate compass" that uses no moving parts in sensing magnetic north. The button is used during calibration of the compass - the process for that is in your owner's manual.
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New User
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From: Northern Wisconsin
The manual states that I use the ODO button in the cluster to set the Zone and to CAL the compass. Nothing states to use the "Black Box" button, what then is that for i wonder.. I will try both and see.
Cargo Master
Joined: Jan 2005
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Originally Posted by LACityFD
Hold down the button on the rear view mirror box for like 3-5 seconds...then it triggers the compass calibration display on the odo screen, or in my case, the message center display.
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New User
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From: Northern Wisconsin
Yep, the manual was wrong 
The button on the "black box" is to set the region/zone
and then holding in the ODO reset button on the cluster sets it to Calibration mode.
The button on the "black box" is to set the region/zoneand then holding in the ODO reset button on the cluster sets it to Calibration mode.
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