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EXT light on Dash

Trying to figure out what the red EXT light next to the headlight knob on my '87 911 represents. I just started the car after a top end rebuild and the light stays on continually. Any ideas?


Last edited by CarreraWSJT; 11-12-2014 at 02:00 PM..
Old 11-10-2014, 04:26 PM
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Old 11-12-2014, 07:01 AM
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must be a canadian thing.
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Old 11-12-2014, 07:51 AM
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Is it in a rectangular space just to the left of the light switch? If so, I could not find out what it means by searching through the owners manual as it's shown as a blank on the dash identification page.

Just exactly which model of 87 do you have, and do you have any special options such as auto trans?
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Old 11-12-2014, 08:03 AM
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My 911 is an 81 so not much help but I did find an 87 owner's manual online and there is absolutely nothing regarding this EXT dash light.

Could this be the 02 sensor life indicator?
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Old 11-12-2014, 08:33 AM
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Warp core dilithium crystals have been "EXT"-inguished". Time to get another 911.
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Old 11-12-2014, 11:26 AM
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Old 11-12-2014, 02:01 PM
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Interesting.


I would say that looks like it was added by a PO. What it does is anyone's guess.
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Old 11-12-2014, 02:47 PM
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I'd say aftermarket alarm.
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Old 11-12-2014, 03:26 PM
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I traced the wiring from the bulb to the cruise control module under the dash (passengers side). My question now is - what would cause the light to stay on all the time?

Old 11-12-2014, 04:22 PM
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