The saga continues. The shop brought in another technician who had a different programming device. Again, the scanner recognized the new BCM but attempts to program the unit resulted in no communication or response. Could I have a defective OEM Delco part? They declined to install the new ignition switch I provided (also a genuine AC Delco OEM part) saying the switch wasn't the problem and that the tumbler was worn out. The main ignition key is obviously worn and can be removed with the engine running but the valet key works normally since it has no wear. IMHO it's just the primary ignition key that is worn. The shop said if I replaced the tumbler it would invalidate the car's anti-theft system and that would be the point of no return. My understanding was that older GM cars could have the tumbler replaced without impacting the anti-theft system. Maybe I misunderstood. Problem is that these guys have little experience with Saturns. I am going to pick up the new BCM and return it to O'Reilly in hopes of recovering my $400 but beyond that I am at a dead end.
If the BCM interacts with other modules, and I'm sure it does, could the problem be elsewhere, say the ECM or an anti-theft module if there is one? I may have told you that I had to ride 20 miles on the rim of a rear wheel after I had a blowout on the interstate. The rim was shaped like a triangle by the time I got home and even at 10 miles an hour the car was shaken badly.
Should I have the car towed to another shop and start the process all over again? With the old BCM reinstalled the car starts and runs. Sometimes. It's like Russian roulette I am two steps away from having to junk this car. It has 175,000 miles but otherwise is in good shape. There was an issue with the timing chain oiler (GM recall) but that was dealt with years ago, and what a surprise, the dealer said my VIN was not on the recall list. I had to pay $1500 out of pocket. The truth was every 2002 Saturn had the oiler problem. I should have contacted GM before caving and paying the dealer. They installed a kit which was provided by GM per the recall. I think the dealer made $1,500.00 on the deal. But I digress.
Friday, August 19th, 2022 AT 5:03 AM