Need help with codes please
Thread Starter
Instructor
Joined: Jan 2013
Posts: 187
Likes: 0
From: Okeechobee Florida
Need help with codes please
OK....the key fob doesn't work so before trying to program it (I assumed the fob battery was dead) I ran the diagnostic codes and there are a bunch of codes that I think relate to the fob communicating with the doors and trunk...they are all history codes and other than these there are no other codes...
Can anyone please help me understand what has been going on here...???
AO-LDCM...
B2252
B2202
B2282
B2284
B2264
AO-LDCM...
U1255
U1064
U1016
U1096
A1-RDCM...
B2283
B2285
B2263
B2265
U1255
U1064
U1016
U1096
BO-RFA...
U1096
U1064
U1016
I appreciate any help given
Can anyone please help me understand what has been going on here...???
AO-LDCM...
B2252
B2202
B2282
B2284
B2264
AO-LDCM...
U1255
U1064
U1016
U1096
A1-RDCM...
B2283
B2285
B2263
B2265
U1255
U1064
U1016
U1096
BO-RFA...
U1096
U1064
U1016
I appreciate any help given
Last edited by okeesignguy; Feb 1, 2015 at 05:19 PM.
Thread Starter
Instructor
Joined: Jan 2013
Posts: 187
Likes: 0
From: Okeechobee Florida
I just bought the car last night and haven't entered that info into my profile as of yet...perhaps now would be a good time to do that...
It is a 2000 six speed and Lord knows when they have had the battery disconnected
I will look at the article that you referenced...thank you!
It is a 2000 six speed and Lord knows when they have had the battery disconnected
I will look at the article that you referenced...thank you!
Thread Starter
Instructor
Joined: Jan 2013
Posts: 187
Likes: 0
From: Okeechobee Florida
Suggest you clear the codes, take the car for a nice ride and when you get back pull the codes again BEFORE you turn of the engine. To pull codes with the engine running you need to clear any messages in the DIC using the reset key and then pull codes as normal.
Post back the codes including the H C or HC that come back.
As an FYI the car will start with a No Load battery voltage of 12.2 or less. The car's electronics are NOT happy with a No Load voltage of 12.5 or less. No load voltage is the voltage measured across the battery posts using a digital multi meter with the neg battery cable disconnected. A good battery at full charge will measure 12.7 or greater. Many electronics in these cars go through a power on start up test when the key is turned on and before the engine starts. So having voltage after the car starts and the alternator is doing it thing will not help is some instances.
Post back the codes including the H C or HC that come back.
As an FYI the car will start with a No Load battery voltage of 12.2 or less. The car's electronics are NOT happy with a No Load voltage of 12.5 or less. No load voltage is the voltage measured across the battery posts using a digital multi meter with the neg battery cable disconnected. A good battery at full charge will measure 12.7 or greater. Many electronics in these cars go through a power on start up test when the key is turned on and before the engine starts. So having voltage after the car starts and the alternator is doing it thing will not help is some instances.
I just bought the car last night and drove it 100 miles home...
Don't know how far you consider a "nice ride" but tomorrow I drive it to work which is only about one mile...that's where my multimeter is...
I will check do what you suggest and get back to you...thanx!
Thread Starter
Instructor
Joined: Jan 2013
Posts: 187
Likes: 0
From: Okeechobee Florida
A nice ride would be 10 to 15 miles with a mixture of driving conditions such as stop and go and a little Interstate if you live near one. A mile is not going to tell much.
As far as all the codes showing H, that is not at all uncommon. Most codes relate to systems/sensors that are operable when the engine is running and not when the engine is off. When you have C codes and shut the car off the computer converts then to H. There are a few exceptions that will show C when the engine is off and the key is on but they are few in number. To see codes that are C (if you have any) you really need to pull the codes after a ride and BEFORE you shut off the engine. To pull codes with the engine running you first need to use the reset key to clear any messages that may be in the DIC. With a blank screen pull codes as you would with the engine off. H codes are something that should NOT be ignored. Especially if they come back after you have cleared them. They are an audit trail of events that have occurred. If you clear codes and they come back after a drive then there is something that needs attention.
As far as all the codes showing H, that is not at all uncommon. Most codes relate to systems/sensors that are operable when the engine is running and not when the engine is off. When you have C codes and shut the car off the computer converts then to H. There are a few exceptions that will show C when the engine is off and the key is on but they are few in number. To see codes that are C (if you have any) you really need to pull the codes after a ride and BEFORE you shut off the engine. To pull codes with the engine running you first need to use the reset key to clear any messages that may be in the DIC. With a blank screen pull codes as you would with the engine off. H codes are something that should NOT be ignored. Especially if they come back after you have cleared them. They are an audit trail of events that have occurred. If you clear codes and they come back after a drive then there is something that needs attention.
ALL of those codes appear to be related to the fob and it's functions...ie left door...right door...trunk...AND my fob is inoperable...
That makes me think that it is NOT the fob's fault and there is something more sinister going on with the car's electronics keeping the fob from working...your opinion??? Also...you can clear history codes...??? I did not know that...
Last edited by okeesignguy; Feb 2, 2015 at 06:40 AM.
Melting Slicks
Joined: Dec 2006
Posts: 2,669
Likes: 3
From: Kingston Ontario
Thanx again and I will do that...
ALL of those codes appear to be related to the fob and it's functions...ie left door...right door...trunk...AND my fob is inoperable...
That makes me think that it is NOT the fob's fault and there is something more sinister going on with the car's electronics keeping the fob from working...your opinion??? Also...you can clear history codes...??? I did not know that...
ALL of those codes appear to be related to the fob and it's functions...ie left door...right door...trunk...AND my fob is inoperable...
That makes me think that it is NOT the fob's fault and there is something more sinister going on with the car's electronics keeping the fob from working...your opinion??? Also...you can clear history codes...??? I did not know that...
https://www.corvetteforum.com/forums...and-p0172.html
Dannyman
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