P1491 whats the likely cause 02 Ram 4.7
Administrator
Joined: Jul 2007
Posts: 24,686
Likes: 21
From: South Georgia/East Florida
It's the condenser fan relay circuit. Probably just the fuse is blown and I'll bet I know why. Do you live where the winters are cold?
BTW: It's fuse #39 and it's a 25a... Be sure to reset the PCM to make the code go bye-bye after you replace the fuse...
If this does not fix the problem or the problem returns, do a search for TSB 08-015-02, it means water got in the fan assembly and popped the fuse, most likely it froze and prevented the fan from turning and the fuse blew. If the water rusted out or caused damage to the assembly, you need to have the steps in the TSB performed.
Odds are though, the fuse will fix it...
BTW: It's fuse #39 and it's a 25a... Be sure to reset the PCM to make the code go bye-bye after you replace the fuse...
If this does not fix the problem or the problem returns, do a search for TSB 08-015-02, it means water got in the fan assembly and popped the fuse, most likely it froze and prevented the fan from turning and the fuse blew. If the water rusted out or caused damage to the assembly, you need to have the steps in the TSB performed.
Odds are though, the fuse will fix it...
Veteran
Joined: Sep 2006
Posts: 317
Likes: 0
From: Polk County
Isnt there a way to check your code turning your truck on and off like 6 times or something?
++EDIT++
Nevermind I found it an old er post, I used search... sorry
++EDIT++
Nevermind I found it an old er post, I used search... sorry
Last edited by Seanutz; Apr 3, 2009 at 04:41 PM.
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Joined: Dec 2007
Posts: 372
Likes: 0
From: Ellsworth AFB, SD
its 3 times key to run then off. and that happened to me last week. the fuse didn't fix it at first and i had the computer cleared still came back. went to go investigate it more and the code went away. just needed the new fuse