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Old 12-17-2007, 11:56 PM
gen6eric gen6eric is offline
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2001 Alero - Passlock - Antitheft?

First ... I must ask ... what am I doing wrong when I am logged in ... create a post, attempt to preview the post and get a message that tells me that I am not logged in ... and the text of my post has vanished when I try to go "back" to copy and paste it after the system recognizes me as being logged in?

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My daughter's 2001 Alero (AT V6 3.4L VIN E with 65,000 miles) appears to have fallen victim to the dreaded Passlock - Antitheft issues. She left it with us over the weekend so my husband could replace the front rotors and pads two days ago. The car ran fine after that ... until the next morning.

Yesterday morning it took about 6 tries before we could get it started. I don't see how it could be related, but that night was the coldest night we have had in our parts. It would crank, but not start, acting like it wasn't getting any fuel. Hours later, it started fine. Again ... hours after that it started fine ... until she drove it, parked and returned to her car. We finally had to have it towed home.

My husband says he can hear the fuel pump and has checked the pressure which appears to be fine. There are other things I can probably relay tomorrow, but he has given up for the night and has deserted me.

I do need to find out if the TechII scanner I have read about is different than the OBDII code reader we have (Innova 3100.) The Code Reader does not show any codes, and all available I/M modules were initially showing that the diagnostics had been run.

The last time we checked it (after the battery was low ... but not dead ... and he recharged it) the code reader only reflects that I/M M, F, & CC monitors have been run. C, EV, O, OH, and E are flashing, indicating that the data had been erased and these won't appear as having been run until the vehicle is driven again? He didn't erase the data and the battery didn't completely die, so we are at a loss as to why the usual monitors appear to be a blank slate.

The AllDataDIY Diagnostic System Check suggest that we "attempt to establish communication with the body control module (BCM) and the powertrain control module (PCM)" and check for DTCs. However, we can't find that our code reader is capable of specifying such "communication." I am assuming we need a more sophisticated (expensive) tool?

Edit ... I was able to successfully start the car three times today after waiting 10 minutes with the key in the ON position (SECURITY light flashing), turning the key to OFF, removing it for 10 seconds and reinserting it and trying to start it again. Now ... if I could just get beyond the fear that it is going to continually happen and eventually stop working altogether until what caused it in the first place is "fixed."

I called INNOVA and none of their tools communicate with the BCM (they only check the PCM) and O'reilly Auto Parts doesn't rent one that does. Is it possible that I might find someone who rents a more advanced tool, or are we stuck with going to a repair shop and asking them to run it?

Edit ... mileage typo

Last edited by gen6eric; 12-20-2007 at 10:40 AM.
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