Error codes 12 & 21
04-30-2005, 06:43 AM
#1
Guest
Posts: n/a
Error codes 12 & 21
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
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
04-30-2005, 09:14 AM
#2
Guest
Posts: n/a
Re: Error codes 12 & 21
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
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
04-30-2005, 09:14 AM
#3
Guest
Posts: n/a
Re: Error codes 12 & 21
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
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
04-30-2005, 09:14 AM
#4
Guest
Posts: n/a
Re: Error codes 12 & 21
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
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
04-30-2005, 09:14 AM
#5
Guest
Posts: n/a
Re: Error codes 12 & 21
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
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
05-01-2005, 07:18 AM
#6
Guest
Posts: n/a
Re: Error codes 12 & 21
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
05-01-2005, 07:18 AM
#7
Guest
Posts: n/a
Re: Error codes 12 & 21
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
05-01-2005, 07:18 AM
#8
Guest
Posts: n/a
Re: Error codes 12 & 21
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
05-01-2005, 07:18 AM
#9
Guest
Posts: n/a
Re: Error codes 12 & 21
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
05-01-2005, 04:24 PM
#10
Guest
Posts: n/a
Re: Error codes 12 & 21
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:-------------------- http://www.----------.com/
JoE' wrote:
>
> can this test be done on a '02 Laredo and how do you do it?
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:-------------------- http://www.----------.com/
JoE' wrote:
>
> can this test be done on a '02 Laredo and how do you do it?
