Shutting down without warning?
Thread Starter
6th Gear
Joined: Feb 2016
Posts: 6
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Shutting down without warning?
I have a 1991 Corvette convertible. Yesterday, I was driving for almost two hours. I brought it to get gas, when I put the car in park, the engine just shutdown out of no where. I tried restarting it but got absolutely nothing. I had to call triple A to jump it. It restarted on the first jump. I've had my eye on all the gages and everything looked good. There was no indication of it shutting down. The battery is 1 year old. This is not the first time this has happened to me. Also, the check engine light and service soon appeared on the screen when the car died. When I brought it home, it started up with no problem and looks to run fine. Does anyone know what the problem can be? Thanks.
Thread Starter
6th Gear
Joined: Feb 2016
Posts: 6
Likes: 0
Hello, I did the paper clip test.
The only code that came up was H25.
Apparently this means there's a problem with the CCM or there is a possible short somewhere?
Does this code have anything to do with the car shutting down?
Car starts up strong and seems fine all around still. There are no signs as to why it would just shut down.
Thanks.
The only code that came up was H25.
Apparently this means there's a problem with the CCM or there is a possible short somewhere?
Does this code have anything to do with the car shutting down?
Car starts up strong and seems fine all around still. There are no signs as to why it would just shut down.
Thanks.
Team Owner
Joined: Sep 2003
Posts: 25,366
Likes: 2,732
OP - don't know how you did the code pull and I don't know why someone would just say go to you tube without reference UNLESS maybe just doesn't know
This C4 diagnostic check is pretty complete and should be easy enough to follow. I've no idea how you related H25 to the CCM but it certainly is a potential CCM fault BUT for an L98/'91 also a ECM fault. Try a read of these diagnostics and try again maybe:
http://tech.corvettecentral.com/2011...trouble-codes/
before attempting the read of codes this second time remove the negative cable from the battery and then do the checks maybe after a drive around the neighborhood.
I'd say you need to be concerned maybe with start enable and it's related functions. Did you have any CEL when it shut down?
Do you have a FSM?
You don't seem to have the PM or email function enabled in your "user settings" - use the email function by clicking on my user ID and send me an email address.
This C4 diagnostic check is pretty complete and should be easy enough to follow. I've no idea how you related H25 to the CCM but it certainly is a potential CCM fault BUT for an L98/'91 also a ECM fault. Try a read of these diagnostics and try again maybe:
http://tech.corvettecentral.com/2011...trouble-codes/
before attempting the read of codes this second time remove the negative cable from the battery and then do the checks maybe after a drive around the neighborhood.
I'd say you need to be concerned maybe with start enable and it's related functions. Did you have any CEL when it shut down?
Do you have a FSM?
You don't seem to have the PM or email function enabled in your "user settings" - use the email function by clicking on my user ID and send me an email address.
Last edited by WVZR-1; Apr 23, 2016 at 04:22 PM.
