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Old 11-01-2010, 02:51 PM   Thread Starter #1
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Default Code P1621?

So i went into advance auto today to grab the OBD II becuase I knew my camshaft sensor in the bank 1 was throwin the service engine soon light to me since its been hard to turn over the engine when i first start it...then I got another DTC code - "DTC that caused freeze frame - P1621"...after finding the mr.dolla's thread this is what it read - "P1621 Control Module Long Term Memory Performance/ Immobilizer Code Words Do Not Match"....what does this mean for me?

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Old 11-01-2010, 04:49 PM   #2
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Default Re: Code P1621?

Not sure, but the first code COULD be causing the second code. If you are sure the camshaft position sensor is bad, then I would fix that one, reset the CEL, and see if anything else pops. If it throws another code, then you can go from there. Fix one thing at a time.
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Old 11-02-2010, 06:12 AM   #3
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Default Re: Code P1621?

Its A BCM malfunction code. Usually it affects ur keys n remotes to where they wont work. Any issue like that?
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Old 11-02-2010, 04:38 PM   Thread Starter #4
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Default Re: Code P1621?

nah no malfunction with the keys or the remotes yet dolla but we will see how it plays out after i replace the camshaft sensor...thanks for the help guys ill let you know how it turns out after the replacement
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