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Old 04-17-2011, 08:41 PM
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ok to start off i have a 1999 jeep cherokee ok well just a little while ago i was in my jeep and noticed that the four little arrows that are on the driver's side door panel stopped working?..i cant move my side mirrors any more...so while messing with that i turned my jeep on/ off like 2 times and then when i put my jeep in the on position the check engine light came outso i took it to autozone and they gave me two codes P0443-an open or shorted condition detected in the duty cycle purge soleniod circuit.andp1491 an open or shorted condition detected in the low speed radiator fan relay control circuit(2.5l only) wtf!?!?! i have a 4.0...please guys help me out!.

btw P1491-rad fan control relay circuit
P0443-EVAP purge solenoid circuit

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Old 04-17-2011, 08:53 PM
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can anybody help me out with this?
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Old 04-17-2011, 08:57 PM
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step 1:check the fuse for the mirrors. if good your switch crapped out.
step 2: cycling your key to fast to many time can cause some weird codes to pop up. clear codes and enjoy
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Old 04-17-2011, 09:04 PM
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i dont think the 443 code has anything to do with the mirror. check for a fuse for the mirrors you can use the owners manual. or i would take the switch out and look for the power wire. i dont know what color it is but im sure you got a chiltons or something. see if it getting power. if its got power its probably the switch. take a jumper and start jumpin you cant hurt nothin. purge soleniod is probably junked or the connector may have gotten coroded(sp). you just remember keep it simple stupid. no offense. just my 2 cents.
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Old 04-17-2011, 09:07 PM
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he cycled the key while messing with it.. that can cause a check engine light to come on with odd codes... just like i said in my last post
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Old 04-17-2011, 09:29 PM
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yea hit submit and i was like damn were thinkin the same thing. great minds think alike brotha. the 1491 code was probably a fluke but im sure there was at some time a 443 code. seems like theres always a evap code stored in memory.
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Old 04-17-2011, 09:36 PM
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Neither of those codes are even remotely related to the mirror issue. Chances are its the switch inside the panel itself, those tend to go bad.

The reason the codes came on - Every time you "key on" a vehicle equipped with OBDII, it does duty cycle. It relays voltage to every sensor, to see what voltage comes back. Typically 5 volts is average. If it doesn't see that voltage return, signaling everything is on the up & up, it'll fault that sensor for that key on cycle. After 50 key ons without any issues, it'll turn the MIL off, but store the code in history.

It was looking for a response from both the purge solenoid as well as the low speed fan relay, but it didn't see a response, because you shut the key off too fast, so it figured there was a fault in the system.

Clear codes and have a nice day.
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Old 04-17-2011, 10:07 PM
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dam thanks alot..
im gonna reset my cpu and hopefully everything clears out
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Old 04-18-2011, 08:01 AM
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ok this is wierd as hell on the jeep owners manual it says that fuses number 10 and number 18 stay open...when in reality 10 is the fuse for the fan relay and 18 is the fuse for the power mirror...well i put some fuses in it an bwala everything worked! and yes i did take the fuses off try'ing to find one popped and saw that it said open so i left them out but as soon as i opped it back in it worked! so thank u everyone for your help and thank you btown for bieng a d**k..

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Old 04-18-2011, 10:09 AM
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Originally Posted by 99FreshenedCherokee View Post
ok this is wierd as hell on the jeep owners manual it says that fuses number 10 and number 18 stay open...when in reality 10 is the fuse for the fan relay and 18 is the fuse for the power mirror...well i put some fuses in it an bwala everything worked! and yes i did take the fuses off try'ing to find one popped and saw that it said open so i left them out but as soon as i opped it back in it worked! so thank u everyone for your help and thank you btown for bieng a d**k..


No one was being a d**k, if you are ignorant of the acronym K.I.S.S. let me educate you.
http://en.wikipedia.org/wiki/KISS_principle
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Old 04-18-2011, 12:17 PM
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OOOOhhhh ok i just misinterpreted that for a sec..consider myself educated
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