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C1298 Diagnostic Trouble Code Discussion for May 2008

pcm class 2 serial data link fault

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Trouble Ticket Help Requests for DTC C1298
Help Request Posted
2002 Oldsmobile Alero GL 3.4L No Start, INTERMITENT VIN: 1G3NL52E12
C1298: pcm class 2 serial data link fault. vechile sits outside in sun for a period of time. the complaint is that it wont start and the door locks keep on unlocking and locking. when it stops the vechile will start. there are 5 codes due to loss of communication. plus in shop it will not start then tu...
May 14, 2008