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 Can you add a 3.5 aux import to the OE radio?

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JohnBoanerges
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Jack the R
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Jack the R

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Can you add a 3.5 aux import to the OE radio? - Page 2 Empty
PostSubject: Re: Can you add a 3.5 aux import to the OE radio?   Can you add a 3.5 aux import to the OE radio? - Page 2 EmptySun Jul 11, 2021 12:52 am

LARRY70GS wrote:
The problem with a battery cut off is that you reset the PCM.  That resets all the readiness monitors, and the PCM has to do them one at a time.  You might want to be mindful of that around inspection time if you live in a state that will fail your car if the CEL is on, OR, if your readiness monitors are not completed.

"Readiness monitors?" I know there is some kind of relearn procedure that is supposed to be done when the battery is reconnected, but I haven't done it and have never seen a problem.
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LARRY70GS
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LARRY70GS

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Can you add a 3.5 aux import to the OE radio? - Page 2 Empty
PostSubject: Re: Can you add a 3.5 aux import to the OE radio?   Can you add a 3.5 aux import to the OE radio? - Page 2 EmptySun Jul 11, 2021 7:51 am

Jack the R wrote:
LARRY70GS wrote:
The problem with a battery cut off is that you reset the PCM.  That resets all the readiness monitors, and the PCM has to do them one at a time.  You might want to be mindful of that around inspection time if you live in a state that will fail your car if the CEL is on, OR, if your readiness monitors are not completed.

"Readiness monitors?"  I know there is some kind of relearn procedure that is supposed to be done when the battery is reconnected, but I haven't done it and have never seen a problem.

To pass inspection in most states, the emissions readiness tests must be completed, AND, the CEL CANNOT be on.  If you disconnect the battery, OR clear the code(s), it resets all the readiness monitors. and the PCM must do them.  In NYS, any car 1996-2000 is allowed 2 readiness tests not completed, 2001 and later is allowed 1 test not completed.  Anything more than that will fail inspection.  If you disconnect the battery to clear a CEL light, the car will fail because of the readiness tests not completed.  A specific drive cycle is required to do the tests, and each test has specific requirements to do the test.  As an example, the PCM will only do the EVAP readiness test if the gas tank is between 1/4 and 3/4 full.  I keep my tank full because I have an intermittent P0442 EVAP code that occasionally lights the CEL.  My car passes every year with that readiness test "not completed".


https://www.obdautodoctor.com/scantool-garage/obd-readiness-monitors-explained

https://dmv.ny.gov/brochure/what-do-you-mean-my-cars-not-ready

_________________
98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
https://www.youtube.com/watch?v=UHCda-t_Jls
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