Aids HIV FAQ

96 Caravan Code 63

Question:

You’re probably going to need to take it in to the dealer… the PCM is the (engine?) computer, and the EEPROM is the memory the computer saves its settings to… so basically your computer is saying it knows what it’s doing, but it can’t save any of the settings learned from the various sensors and such. It sounds like a faulty computer, but with electronics being what they are today, it could be something as simple as a loose ground wire. I don’t think you’ll be able to figure that out without taking it in. …why is it that even when I’m right, I’m wrong?

Response:

your PCM is one of your computer control modules. it controls among other things the sensors in your cooling system.  have you had any trouble with overheating lately?  or does the engine run warmer than usual. I don’t know if it’s covered under warranty, but they are quite expensive (anywhere from 180-440 dollars)

– Hide quoted text — Show quoted text -> Check engine light just came on, it reads 12(as usual) 63 (Controller cannot > write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of > test) > The Van has 67K on it and is a 3.0L V6, is this something I should worry > about or do I have to get it into a dealer for checkout, I was out of town > when it came on and calling around to a couple of dealers, all they would > say is they don’t know right off what the problem is and to bring it in to > them for troubleshooting. I’m a retired aircraft mechanic and don’t want to > spend a lot of money for some wrench jockey to plug a tester into my car, > then reset the light. Anyone help me with this problem. Also if the PCM > (Don’t even know what it is) is bad would it be covered by the warrantee? > Thanks

Response:

May I ask a dumb question:  How do you know what the codes were and how do you interpret them?     Thanks,     Jeff > Check engine light just came on, it reads 12(as usual) 63 (Controller cannot > write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of > test) > The Van has 67K on it and is a 3.0L V6, is this something I should worry > about or do I have to get it into a dealer for checkout, I was out of town > when it came on and calling around to a couple of dealers, all they would > say is they don’t know right off what the problem is and to bring it in to > them for troubleshooting. I’m a retired aircraft mechanic and don’t want to > spend a lot of money for some wrench jockey to plug a tester into my car, > then reset the light. Anyone help me with this problem. Also if the PCM > (Don’t even know what it is) is bad would it be covered by the warrantee? > Thanks

– Jeff Gunter IBM Certified Specialist – AS/400 RPG Programmer Visit my Web Site at: http://www.as400guy.com/

Response:

u know when people  go to the doctor and he tells them they got hiv that will turn in to aids well your pcm has hiv and its gonna get aids better get in before it leaves u stranded – Hide quoted text — Show quoted text – > Check engine light just came on, it reads 12(as usual) 63 (Controller cannot > write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of > test) > The Van has 67K on it and is a 3.0L V6, is this something I should worry > about or do I have to get it into a dealer for checkout, I was out of town > when it came on and calling around to a couple of dealers, all they would > say is they don’t know right off what the problem is and to bring it in to > them for troubleshooting. I’m a retired aircraft mechanic and don’t want to > spend a lot of money for some wrench jockey to plug a tester into my car, > then reset the light. Anyone help me with this problem. Also if the PCM > (Don’t even know what it is) is bad would it be covered by the warrantee? > Thanks

Response:

I agree about the PCM leaving you stranded. also, if you live in a hot humid climate, you will be replacing it again in about 60-70,000 miles.  my Chrysler guy here in Korea tells me that because most of them are mounted under and behind the battery, they get no cooling and heat as you know will shorten the life of any electronic part.  he has had to replace four in the past 3 months on voyagers here. get your vehicle on a good analyzer and really check for this.

– Hide quoted text — Show quoted text -> u know when people  go to the doctor and he tells them they got hiv that > will turn in to aids > well your pcm has hiv and its gonna get aids better get in before it > leaves u stranded > Check engine light just came on, it reads 12(as usual) 63 (Controller cannot > write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of > test) > The Van has 67K on it and is a 3.0L V6, is this something I should worry > about or do I have to get it into a dealer for checkout, I was out of town > when it came on and calling around to a couple of dealers, all they would > say is they don’t know right off what the problem is and to bring it in to > them for troubleshooting. I’m a retired aircraft mechanic and don’t want to > spend a lot of money for some wrench jockey to plug a tester into my car, > then reset the light. Anyone help me with this problem. Also if the PCM > (Don’t even know what it is) is bad would it be covered by the warrantee? > Thanks

Response:

Check engine light just came on, it reads 12(as usual) 63 (Controller cannot write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of test) The Van has 67K on it and is a 3.0L V6, is this something I should worry about or do I have to get it into a dealer for checkout, I was out of town when it came on and calling around to a couple of dealers, all they would say is they don’t know right off what the problem is and to bring it in to them for troubleshooting. I’m a retired aircraft mechanic and don’t want to spend a lot of money for some wrench jockey to plug a tester into my car, then reset the light. Anyone help me with this problem. Also if the PCM (Don’t even know what it is) is bad would it be covered by the warrantee? Thanks

Response:

Check engine light just came on, it reads 12(as usual) 63 (Controller cannot write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of test) The Van has 67K on it and is a 3.0L V6, is this something I should worry about or do I have to get it into a dealer for checkout, I was out of town when it came on and calling around to a couple of dealers, all they would say is they don’t know right off what the problem is and to bring it in to them for troubleshooting. I’m a retired aircraft mechanic and don’t want to spend a lot of money for some wrench jockey to plug a tester into my car, then reset the light. Anyone help me with this problem. Also if the PCM (Don’t even know what it is) is bad would it be covered by the warrantee? Thanks

Response:

You’re probably going to need to take it in to the dealer… the PCM is the (engine?) computer, and the EEPROM is the memory the computer saves its settings to… so basically your computer is saying it knows what it’s doing, but it can’t save any of the settings learned from the various sensors and such. It sounds like a faulty computer, but with electronics being what they are today, it could be something as simple as a loose ground wire. I don’t think you’ll be able to figure that out without taking it in. …why is it that even when I’m right, I’m wrong?

Response:

your PCM is one of your computer control modules. it controls among other things the sensors in your cooling system.  have you had any trouble with overheating lately?  or does the engine run warmer than usual. I don’t know if it’s covered under warranty, but they are quite expensive (anywhere from 180-440 dollars)

– Hide quoted text — Show quoted text -> Check engine light just came on, it reads 12(as usual) 63 (Controller cannot > write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of > test) > The Van has 67K on it and is a 3.0L V6, is this something I should worry > about or do I have to get it into a dealer for checkout, I was out of town > when it came on and calling around to a couple of dealers, all they would > say is they don’t know right off what the problem is and to bring it in to > them for troubleshooting. I’m a retired aircraft mechanic and don’t want to > spend a lot of money for some wrench jockey to plug a tester into my car, > then reset the light. Anyone help me with this problem. Also if the PCM > (Don’t even know what it is) is bad would it be covered by the warrantee? > Thanks

Response:

May I ask a dumb question:  How do you know what the codes were and how do you interpret them?     Thanks,     Jeff > Check engine light just came on, it reads 12(as usual) 63 (Controller cannot > write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of > test) > The Van has 67K on it and is a 3.0L V6, is this something I should worry > about or do I have to get it into a dealer for checkout, I was out of town > when it came on and calling around to a couple of dealers, all they would > say is they don’t know right off what the problem is and to bring it in to > them for troubleshooting. I’m a retired aircraft mechanic and don’t want to > spend a lot of money for some wrench jockey to plug a tester into my car, > then reset the light. Anyone help me with this problem. Also if the PCM > (Don’t even know what it is) is bad would it be covered by the warrantee? > Thanks

– Jeff Gunter IBM Certified Specialist – AS/400 RPG Programmer Visit my Web Site at: http://www.as400guy.com/

Response:

u know when people  go to the doctor and he tells them they got hiv that will turn in to aids well your pcm has hiv and its gonna get aids better get in before it leaves u stranded – Hide quoted text — Show quoted text – > Check engine light just came on, it reads 12(as usual) 63 (Controller cannot > write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of > test) > The Van has 67K on it and is a 3.0L V6, is this something I should worry > about or do I have to get it into a dealer for checkout, I was out of town > when it came on and calling around to a couple of dealers, all they would > say is they don’t know right off what the problem is and to bring it in to > them for troubleshooting. I’m a retired aircraft mechanic and don’t want to > spend a lot of money for some wrench jockey to plug a tester into my car, > then reset the light. Anyone help me with this problem. Also if the PCM > (Don’t even know what it is) is bad would it be covered by the warrantee? > Thanks

Response:

I agree about the PCM leaving you stranded. also, if you live in a hot humid climate, you will be replacing it again in about 60-70,000 miles.  my Chrysler guy here in Korea tells me that because most of them are mounted under and behind the battery, they get no cooling and heat as you know will shorten the life of any electronic part.  he has had to replace four in the past 3 months on voyagers here. get your vehicle on a good analyzer and really check for this.

– Hide quoted text — Show quoted text -> u know when people  go to the doctor and he tells them they got hiv that > will turn in to aids > well your pcm has hiv and its gonna get aids better get in before it > leaves u stranded > Check engine light just came on, it reads 12(as usual) 63 (Controller cannot > write to EEPROM or PCM failure EEPROM write denied) and then 55 (end of > test) > The Van has 67K on it and is a 3.0L V6, is this something I should worry > about or do I have to get it into a dealer for checkout, I was out of town > when it came on and calling around to a couple of dealers, all they would > say is they don’t know right off what the problem is and to bring it in to > them for troubleshooting. I’m a retired aircraft mechanic and don’t want to > spend a lot of money for some wrench jockey to plug a tester into my car, > then reset the light. Anyone help me with this problem. Also if the PCM > (Don’t even know what it is) is bad would it be covered by the warrantee? > Thanks

Response:

Filed under: HIV