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Error codes 12 & 21
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CarGuru > Jeep Willys > Error codes 12 & 21 1 May 2005 15:18:14
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Error codes 12 & 21

Mel P. 30 April 2005 14:43:34
 When I do the 3 time key turn thing.. I get these 2 codes. One is power
loss (I'm paraphrasing) like when you disconnect the battery. But My clock,
etc have no memory loss. The second code, 21 is for a bad O2 sensor which I
change about 6 months ago.

Is it bad wiring maybe? What should I check for?

Posted a while ago but rec'd no response. Please help.

thanks in advance for any info which can help,

--
Mel

97 Cherokee


Add comment
Mike Romain 30 April 2005 17:14:24 [ permanent link ]
 I would pull the battery cable off for 15 minutes or so to reset the
codes and see what happens.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"Mel P." wrote:>
When I do the 3 time key turn thing.. I get these 2 codes. One is power> loss (I'm paraphrasing) like when you disconnect the battery. But My clock,> etc have no memory loss. The second code, 21 is for a bad O2 sensor which I> change about 6 months ago.>
Is it bad wiring maybe? What should I check for?>
Posted a while ago but rec'd no response. Please help.>
thanks in advance for any info which can help,>
--> Mel>
97 Cherokee
Add comment
JoE 1 May 2005 15:18:14 [ permanent link ]
 
can this test be done on a '02 Laredo and how do you do it?

"Mike Romain" <romainm@sympatico.­ca> wrote in message
news:427384B0.B000B­33E@sympatico.ca...>­I would pull the battery cable off for 15 minutes or so to reset the> codes and see what happens.>
Mike> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00> 88 Cherokee 235 BFG AT's>
"Mel P." wrote:>>
When I do the 3 time key turn thing.. I get these 2 codes. One is >> power>> loss (I'm paraphrasing) like when you disconnect the battery. But My >> clock,>> etc have no memory loss. The second code, 21 is for a bad O2 sensor >> which I>> change about 6 months ago.>>
Is it bad wiring maybe? What should I check for?>>
Posted a while ago but rec'd no response. Please help.>>
thanks in advance for any info which can help,>>
-->> Mel>>
97 Cherokee


Add comment
L . W . Hughes III 2 May 2005 00:24:21 [ permanent link ]
 Turn the ignition key until the digital odometer displays, repeat
three times in succession and then back to "On" (On/Off, On/Off, On/Off,
On). At the fourth "On" the odometer will be replaced with codes. If no
codes are present then "Done" will appear.
http://www.wjjeeps.­com/faultcodes.htm
God Bless America, ßill O|||||||O
mailto:LWHughes3rd@­aol.com http://www.billhugh­es.com/

JoE' wrote:>
can this test be done on a '02 Laredo and how do you do it?
Add comment
 

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CarGuru > Jeep Willys > Error codes 12 & 21 1 May 2005 15:18:14
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