Code 603
02-09-2008, 01:04 PM
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Code 603
Ok I pulled this code today . It has to do with the KAM. Any insight into this.
02-09-2008, 02:10 PM
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0603 appears to be a memory test failure by my book. Specifically the PCM "keep alive" memory failed a self-diagnostic test.
02-11-2008, 08:30 AM
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Probably has something to do with your aftermarket tuner.
02-11-2008, 08:35 AM
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That si when it did come up. I installed tow setting from my superchip and then I got that code. Is it something to be concerned with?
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02-09-2008, 02:10 PM
