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Old 06-04-2008, 12:54 AM   #1
Tag_sk
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Member Since: Dec 2004
Location: Vacaville California
Default GMLAN error

I have a 05 Corvette A4, it runs great, but I have a problem using a data logging tool or code reader- unable to read vehicle information. I took it to a shop that had a snap on scan tool and was able to get 3 codes; P0700 Transmission Control Module Requested MIL illumination, U2100 Controller Area Network Bus Communication, and U2105 Lost Communication with Engine Control Module. Codes where cleared and later that day I was able to log some data, but the next day I tried again and was unable to get vehicle information again. I noticed when the shop's scan tool was connected and then disconnected the driver information center on the dash alternated between Service Active Handling System & Service Traction Control System, but after a restart they did not appear again. What do I need to do to fix this?
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Old 06-04-2008, 08:18 AM   #2
patton
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Member Since: Jun 2004
Location: trenton nj
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Quote:
Originally Posted by Tag_sk View Post
I have a 05 Corvette A4, it runs great, but I have a problem using a data logging tool or code reader- unable to read vehicle information. I took it to a shop that had a snap on scan tool and was able to get 3 codes; P0700 Transmission Control Module Requested MIL illumination, U2100 Controller Area Network Bus Communication, and U2105 Lost Communication with Engine Control Module. Codes where cleared and later that day I was able to log some data, but the next day I tried again and was unable to get vehicle information again. I noticed when the shop's scan tool was connected and then disconnected the driver information center on the dash alternated between Service Active Handling System & Service Traction Control System, but after a restart they did not appear again. What do I need to do to fix this?
are your scanners/tools CAN able ? i use a snapon mgt 2500 on my 07 z and do not get those messages when hooked up. have you had a CEL ?
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Old 06-04-2008, 08:18 AM
 
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06, corvette, driver, fix, gmlan, illumination, info, mil, p0700, problem, requested, u2100, u2105


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