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Old 07-26-2019, 11:01 PM   #1
Pjone
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Can anyone identify this plug?

Hi there,

I bought a '98 Tahoe and there is this plug under the dashboard. The pre-owner doesn' t know its function. Can anyone help?
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Old 07-28-2019, 08:47 AM   #2
Blue Bowtie
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Re: Can anyone identify this plug?

It is likely aftermarket and the possibilities are:

Trailer brake connection;

Security/remote start connection;

Plow control;

Radio equipment;

Temporal flux capacitor.
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Old 05-15-2022, 02:01 PM   #3
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Re: Can anyone identify this plug?

DOD disable?
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Old 05-15-2022, 09:02 PM   #4
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Re: Can anyone identify this plug?

1998 did not have variable displacement/cylinder deactivation. That's probably why it is still running.
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