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? My hummer is a 2003 and on start up the display menu says Service Air Suspension. when i stopped today i got out to look at my car and noticed that the rear was significantly lower then normal and as i drive each bump and nick in the road feels harsh.
U need to change/service the air compressor in ur car.
or it might be the air bags/sensors thats located next to the rear tires.
Posted on Sep 08, 2009
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Posted on Jan 02, 2017
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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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