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Clearing codes


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I have a question about clearing codes. I'm getting the B1324 Code on my 2000 seville. If I were to clear all the codes and then take the car to the dealer, If the code is no longer in the OBC, Can they hook up a scanner or some other computer and see that I just cleared the code? Will it show up on anything else if it's no longer in the OBC? I mean even if I do it in their parking lot?

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Ah; I wondered what the reason for the question was. Usually the problem is that the Dealer CAN'T see codes you wish they could, which is what the snapshot mode is helpful for.

Bruce

2023 Cadillac CT4-V Blackwing

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There are situations in which codes show or the MIL light shows, but codes don't get into history and/or no codes show but a problem is evident. The snapshot mode allows the user to capture a problem in progress so to speak.

Bruce

2023 Cadillac CT4-V Blackwing

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You are correct Ranger(hi). I cleared my bad PC0153 code(Bad O2sensor) a minute before I took the emissions test. I passed and they didn't know anything.

Now THAT is amazing (that you passed). The government anticipated this when they designed OBDII and built in a rediness check. If the DTC's have been cleared, the system will not pass a rediness test untill about 3 drive cycles (in which time t he DTC will reset) I believe. That will usually fail you. You got lucky.

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Ah; I wondered what the reason for the question was. Usually the problem is that the Dealer CAN'T see codes you wish they could, which is what the snapshot mode is helpful for.

The reason I asked this is because I wanted to see how often the code comes back when I clear it. And if I want to take the car to get checked out at the dealer, If the code is cleared out, Will I have to wait for the code to reappear or will the dealer be able to hook something up to the car and bring it back up? Do they have a scanner or an external computer that they can get the code back? I'd hate to waste a trip to the dealer for this if the code isn't there, But I don't want my A/C to screw up either..

B1324 A/C Refrigerant Overpressure, How does it get over pressure? I haven't added any freon.. I've been told that could blow the compressor. Is that true?

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The refrigerant overpressure code is most likely caused by too much refrigerant in the system - if you bought the car used, it is possible that the previous owner added too much refrigerant at some point. The only sure way to tell is to recover the charge and weigh it. Unless you have the equipment to do that, you'll need to take it to a shop.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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