PO480C Code
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 2,191
Likes: 243
From: Guelph Ontario
PO480C Code
I was asked to post this over here from Scan and Tune:
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!!
Got all the relays and replaced--but am still getting PO480C code
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!!
Got all the relays and replaced--but am still getting PO480C code
Tech Contributor
Joined: Jan 2007
Posts: 19,401
Likes: 1,141
From: Dyer, IN
I was asked to post this over here from Scan and Tune:
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!!
Got all the relays and replaced--but am still getting PO480C code
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!!
Got all the relays and replaced--but am still getting PO480C code
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 2,191
Likes: 243
From: Guelph Ontario
I actually did not----I just followed the code---sadly I replaced all the relays ---but the problem persists---hence I believe I have a fan problem??? Any hints on how to check fans???
Tech Contributor
Joined: Jan 2007
Posts: 19,401
Likes: 1,141
From: Dyer, IN
Sure. Just use the service manual "Engine Controls/Description and Operation/Engine Cooling Fan Description" section to verify proper operation of the fans. That will give you a starting point.
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 2,191
Likes: 243
From: Guelph Ontario
Sorry Sam---I am in Indiana right now
---but will check when I get back to Ontario this weekend---but I think I checked all the fuses originally and they looked ok---and at Carlisle I did buy the manuals--so I can check the fans also!!
---but will check when I get back to Ontario this weekend---but I think I checked all the fuses originally and they looked ok---and at Carlisle I did buy the manuals--so I can check the fans also!!
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 2,191
Likes: 243
From: Guelph Ontario
Put another fuse in and took for a cruise--I punched it and blew the fuse again??? So I shall have to dig deeper into this than I thought---both fans turn free--as I thought one may be seized???
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Burning Brakes
Joined: Jul 2006
Posts: 968
Likes: 12
From: Regina Sask
Russ Kemp
Drifting
Joined: Aug 2005
Posts: 1,757
Likes: 5
From: Peterborough, Ontario
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 2,191
Likes: 243
From: Guelph Ontario
Found it!!!!!
WOW!!!----I jacked her all up and went under to unplug the left fan as advised--and found last spring when I installed my Vararam--when I pulled the fan shroud----I had not hitched in on to the reciever in the botton----hence the fan was lying on the 2 wires!!!
---one was bared thru
---disassembled and taped up---put new fuse in and road tested---NO PROBLEM!!!!---Thanx guys---thanx Ian!!! We are good to go!!!
---one was bared thru---disassembled and taped up---put new fuse in and road tested---NO PROBLEM!!!!---Thanx guys---thanx Ian!!! We are good to go!!!
Drifting
Joined: Aug 2005
Posts: 1,757
Likes: 5
From: Peterborough, Ontario
found and done....
WOW!!!----I jacked her all up and went under to unplug the left fan as advised--and found last spring when I installed my Vararam--when I pulled the fan shroud----I had not hitched in on to the reciever in the botton----hence the fan was lying on the 2 wires!!!---one was bared thru---disassembled and taped up---put new fuse in and road tested---NO PROBLEM!!!!---Thanx guys---thanx Ian!!! We are good to go!!!
---one was bared thru---disassembled and taped up---put new fuse in and road tested---NO PROBLEM!!!!---Thanx guys---thanx Ian!!! We are good to go!!!