Thread: Engine Check Light
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Old 13 Mar 2004, 09:16 pm
MX-5 MX-5 is offline
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Join Date: May 2003
Location: South Bend, IN.
Posts: 451
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Ant is correct for pre-2001 cars.
The P1684 is simply a PCM readiness code.
It means that communication between the PCM and BCM is working.
Ignore it.

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