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I have a 98 Corvette with lots of codes. It was doing all the crazy crap others i have read about or doing such as windows stop working temp bottom out also oil pressure doing the same. Abs light on tcs light on A/c stopped working ECT. All while driving down the road, after a mile everything went back to working but the security light stayed on. I check two of the grounds that were easy to find and they seemed to be fine. Now the wipers will not go off. Here are a list of the Codes.C12251,U1016h,C1255h,P1626HC,B0432 ,B0502,B0503,B0507,B0508,B2567,B2593,B27 21,B2723,U1255,U1016,U1096,HVAC codes B0361,B0365,B0367,B0446.I reset the codes but codes Bo361 and B2721 will not clear. The car will not do anything now when i turn the key. Please help.
B2721 is pass key detection. Basically the resistor on the key is not being recognised/read correctly so the security feature is enabled that disables the starter and fuel pump. You might try your backup key to get around that but the other issues are likely to reappear even if you get the car to start with another key.
Look at this thread as it may be your problem or the ignition switch may be the issue:
You're other code has nothing to do with why the car is not starting...it is related to you AC actuator door on the driver side I believe.
You'll want to do a search using the keywords "AC 101" and "AC actuator reindexing" use them in the title for your search first. Your actuator either needs to be reindexed or replaced.
1. Look for water or moisture on or around the BCM. If the BCM is or was WET, it will do what your expierencing.
2. Grab the rubber accordion tubes and Shake the wiring harnesses inside accordion tubes between the doors. If that clears upo the issues, you will need to service the connectors in the door frame.