new 2002 Z28 owner, with problems already!
11-16-2010 | 12:00 AM
#21
The vehicle's modules store CURRENT codes and HISTORY codes. History codes are codes which set at one point in time, but the module is no longer seeing the failure. A CURRENT code is one in which, well...current.
Some aftermarket scan tools, such as the ones used by autozone, can only read CURRENT 'P' codes (aka powertrain). Other codes such as B (body) or C (chassis) codes are stored in other modules such as a BCM, EBCM, or SDM which cant be seen by the scan tools that can only read P codes.
Chances are that the codes the dealer are telling you about are HISTORY codes and are not currently failing, but have failed at some point. This doesnt necessarily mean there is a problem. It could mean they never got cleared after a repair, or maybe the problem is intermittent.
Some aftermarket scan tools, such as the ones used by autozone, can only read CURRENT 'P' codes (aka powertrain). Other codes such as B (body) or C (chassis) codes are stored in other modules such as a BCM, EBCM, or SDM which cant be seen by the scan tools that can only read P codes.
Chances are that the codes the dealer are telling you about are HISTORY codes and are not currently failing, but have failed at some point. This doesnt necessarily mean there is a problem. It could mean they never got cleared after a repair, or maybe the problem is intermittent.
11-16-2010 | 09:20 AM
#22
Thread Starter
Teching In
Joined: Nov 2010
Posts: 39
Likes: 0
From: Naples, FL
The vehicle's modules store CURRENT codes and HISTORY codes. History codes are codes which set at one point in time, but the module is no longer seeing the failure. A CURRENT code is one in which, well...current.
Some aftermarket scan tools, such as the ones used by autozone, can only read CURRENT 'P' codes (aka powertrain). Other codes such as B (body) or C (chassis) codes are stored in other modules such as a BCM, EBCM, or SDM which cant be seen by the scan tools that can only read P codes.
Chances are that the codes the dealer are telling you about are HISTORY codes and are not currently failing, but have failed at some point. This doesnt necessarily mean there is a problem. It could mean they never got cleared after a repair, or maybe the problem is intermittent.
Some aftermarket scan tools, such as the ones used by autozone, can only read CURRENT 'P' codes (aka powertrain). Other codes such as B (body) or C (chassis) codes are stored in other modules such as a BCM, EBCM, or SDM which cant be seen by the scan tools that can only read P codes.
Chances are that the codes the dealer are telling you about are HISTORY codes and are not currently failing, but have failed at some point. This doesnt necessarily mean there is a problem. It could mean they never got cleared after a repair, or maybe the problem is intermittent.
thanks again, I'll post the outcome.
11-16-2010 | 04:41 PM
#23
Thread Starter
Teching In
Joined: Nov 2010
Posts: 39
Likes: 0
From: Naples, FL
Well I just got my car back from the dealer, and sure enough, they replaced the left converter, cleared the SES light, and it didn't cose me a dime!
He did say they saw a few history codes which included:
po161 (o2 sensor right side post converter)
p1626 (theft deterrrent fuel enable signal not recieved)
p1637 (generator L- terminal circuit)
they said they didn't check into any of those codes though, since they were history codes, and as long as the car is running fine and the SES light doesn't come on again, I guess I won't worry about it.
Is that what everyone else on here would do too? Should I check into these codes too, or just drive it and see how is goes?
THANKS AGAIN FOR ALL THE HELP EVERYONE!
He did say they saw a few history codes which included:
po161 (o2 sensor right side post converter)
p1626 (theft deterrrent fuel enable signal not recieved)
p1637 (generator L- terminal circuit)
they said they didn't check into any of those codes though, since they were history codes, and as long as the car is running fine and the SES light doesn't come on again, I guess I won't worry about it.
Is that what everyone else on here would do too? Should I check into these codes too, or just drive it and see how is goes?
THANKS AGAIN FOR ALL THE HELP EVERYONE!
11-16-2010 | 08:21 PM
#24
If they arent current you could do a lot of parts hanging and you wont even know if it will fix it because the module isnt currently seeing the problem. I'd leave it for now and worry about it if they come back as current.
11-19-2010 | 12:49 AM
#26
TECH Apprentice
Joined: Jan 2010
Posts: 333
Likes: 0
From: Tucson, AZ
Open drivers door and on the end of the dash panel pop off the fuse box cover. Check the CIG/ACCY fuse...its probably blown. This fuse provides power to the scan tool. Replace the fuse and take it to autozone again to get the codes checked again and see why the check engine light is on. The check engine light is not related to the SES light.
The oil light was never reset when the oil was changed. Turn your key on and hold the trip/reset button for 12 seconds. This should reset the change oil light.
The oil light was never reset when the oil was changed. Turn your key on and hold the trip/reset button for 12 seconds. This should reset the change oil light.
Remember, each time you change the oil you must reset the "Oil Change" light so the system knows.
Seems pretty amicable for the dealership to be helping you out in a timely manner.
