Question about 2005 Hummer H2
I have a hypertech that shows the trouble code C0563, and my "service air suspension" text is displayed in my dash odometer screen upon start-up, can you help?
C0563 - Calibration ROM Checksum Error
Not sure what it means but thats what I found when I looked it up
Posted on Oct 28, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
The identification of any stored diagnostic trouble codes (DTCs) and their status.
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
If you don't know about this stuff , I strongly suggest you take it to a repair shop ! Do you know about electrical circuits , relay's fuse's ? Do you know how to use a volt meter, read a wiring diagram. The first thing to do would be hook up a scan tool ,not a code reader. This system can set several DTC'S -diagnostic trouble codes.
DTC B2795 DTC C0563 DTC C0569 DTC C0626 DTC C0631 DTC C0660 DTC C0696 DTC C0702 DTC C0707 DTC C0711 DTC C0712 DTC C0713 DTC C0716 DTC C0717
You need to be able to test for B+ at different points in the wiring !
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