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Code P0480C

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Old Oct 6, 2008 | 09:39 AM
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Default Code P0480C

Check engine light came on yesterday and checked my codes and had a U1000H and a U1064H along with a Po480C---now there are 3 relays for the cooling system--a Omron 12177234 and 2 Seimens 12193604"s--should I just replace all 3--or is there an order they click on in????--Oh yea I have an 2001 Z-51 coupe. How much are these icecubes??--Mini relays--I am on my way to Indiana right now---should be cheaper in US!!
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Old Oct 6, 2008 | 04:55 PM
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Got down to Kokomo, Indiana this afternoon--went to the dealer--#12193604 (5 pin) is $41.45 and the #12177234 (which has changed numbers to a #21997408) (4 pin) is $22.50-------- At auto zone they are $15.00 and $10.00 respectively!!--but they look very cheap and made in China--home of bad baby formula!!! If anyone has any experience with these I would apprieciate your input. Thanx

Last edited by WildWilly55; Oct 6, 2008 at 06:45 PM.
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Old Oct 7, 2008 | 04:37 PM
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Here in Indiana at NAPA found the #12193604 as NAPA#AR167 at $13.90 USD and #12177234 as NAPA#AR171 at $12.90 USD---good deal--just have to get back up to Canada and swap them out!!! Hopefully this will solve the problem.
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Old Oct 13, 2008 | 07:42 PM
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Put all new relays in---and still getting code???? When I clear the codes its OK---but if I shut the car off and refire---service engine light comes back on--and I gotta go in and clear the code---then it is OK???--Strange??
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Old Oct 21, 2008 | 03:08 PM
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Bump--has no one ever ran into this before??????
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Old Oct 21, 2008 | 03:17 PM
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I haven't but there's a few smart cats in Tech that might be able to assist you. Post over there.
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Old Oct 21, 2008 | 03:42 PM
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Check for a blown #49 - 30amp fuse in the underhood fuse panel. If it is blown, then the left side cooling fan is probably shorted.

Russ Kemp
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Old Oct 21, 2008 | 06:10 PM
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Thanx guys---I will check!!
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Old Oct 26, 2008 | 05:58 PM
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Default Found It!!!!

Went to unplug fan and found shorted wire to left fan---when I installed my Vararam last spring--I inadvertantly did not hook the fan shroud back on bottom retainer---hence fan was lying on the wiring--and barred to ground!!---Thanx guys for all the advice!!!--ACCOMPLISHED!!!!
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