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derek.neiding

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Since: Apr 25, 2008
Posts: 2



(Msg. 1) Posted: Fri Apr 25, 2008 5:08 am
Post subject: Check engine light with O2 codes after both sensors have been Add to elertz
Archived from groups: rec>autos>makers>chrysler (more info?)
I have a 2001 Chrysler Town and Country Limited (3.8 L) with 122K
miles on it. A few months ago the check engine light came on and
there where three codes 1684 (battery disconnect) , 1491 (radiator fan
relay) and 0135 (O2 sensor). Two weeks ago I replaced both O2
sensors. After driving the car for a few miles the check engine light
went off. A couple of days ago it came back on and the same three
codes are back.

Are the O2 sensor I put in bad or is something else wrong?

Thanks in advance,

Derek

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derek.neiding

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Since: Apr 25, 2008
Posts: 2



(Msg. 2) Posted: Fri Apr 25, 2008 9:56 am
Post subject: Re: Check engine light with O2 codes after both sensors have been Add to elertz [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
On Apr 25, 10:42 am, "Mike" <m... RemoveThis @localnet.com> wrote:
> <derek.neid... RemoveThis @razorleaf.com> wrote in message
>
> news:e555cc04-472a-4aca-871c-0175180e7613@27g2000hsf.googlegroups.com...
>
> >I have a 2001 Chrysler Town and Country Limited (3.8 L) with 122K
> > miles on it. A few months ago the check engine light came on and
> > there where three codes 1684 (battery disconnect) , 1491 (radiator fan
> > relay) and 0135 (O2 sensor). Two weeks ago I replaced both O2
> > sensors. After driving the car for a few miles the check engine light
> > went off. A couple of days ago it came back on and the same three
> > codes are back.
>
> > Are the O2 sensor I put in bad or is something else wrong?
>
> > Thanks in advance,
>
> > Derek
>
> The P0135 code is O2 sensor heater circuit - bank 1 sensor one. You did
> check the heater circuit before you replaced the sensor, right ????

Uhhhh -seeings as how I don't know what you are talking about the
answer is clearly no Smile.

How do you 'check the heater circuit'?

 >> Stay informed about: Check engine light with O2 codes after both sensors have b.. 
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Mike

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Since: Mar 08, 2006
Posts: 286



(Msg. 3) Posted: Fri Apr 25, 2008 2:42 pm
Post subject: Re: Check engine light with O2 codes after both sensors have been replaced Add to elertz [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
<derek.neiding.DeleteThis@razorleaf.com> wrote in message
news:e555cc04-472a-4aca-871c-0175180e7613@27g2000hsf.googlegroups.com...
>I have a 2001 Chrysler Town and Country Limited (3.8 L) with 122K
> miles on it. A few months ago the check engine light came on and
> there where three codes 1684 (battery disconnect) , 1491 (radiator fan
> relay) and 0135 (O2 sensor). Two weeks ago I replaced both O2
> sensors. After driving the car for a few miles the check engine light
> went off. A couple of days ago it came back on and the same three
> codes are back.
>
> Are the O2 sensor I put in bad or is something else wrong?
>
> Thanks in advance,
>
> Derek


The P0135 code is O2 sensor heater circuit - bank 1 sensor one. You did
check the heater circuit before you replaced the sensor, right ????
 >> Stay informed about: Check engine light with O2 codes after both sensors have b.. 
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Mike

External


Since: Mar 08, 2006
Posts: 286



(Msg. 4) Posted: Fri Apr 25, 2008 7:08 pm
Post subject: Re: Check engine light with O2 codes after both sensors have been replaced Add to elertz [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
<derek.neiding.RemoveThis@razorleaf.com> wrote in message
news:04a7782c-1482-404c-aabd-e878a35af440@b64g2000hsa.googlegroups.com...
> On Apr 25, 10:42 am, "Mike" <m....RemoveThis@localnet.com> wrote:
>> <derek.neid....RemoveThis@razorleaf.com> wrote in message
>>
>> news:e555cc04-472a-4aca-871c-0175180e7613@27g2000hsf.googlegroups.com...
>>
>> >I have a 2001 Chrysler Town and Country Limited (3.8 L) with 122K
>> > miles on it. A few months ago the check engine light came on and
>> > there where three codes 1684 (battery disconnect) , 1491 (radiator fan
>> > relay) and 0135 (O2 sensor). Two weeks ago I replaced both O2
>> > sensors. After driving the car for a few miles the check engine light
>> > went off. A couple of days ago it came back on and the same three
>> > codes are back.
>>
>> > Are the O2 sensor I put in bad or is something else wrong?
>>
>> > Thanks in advance,
>>
>> > Derek
>>
>> The P0135 code is O2 sensor heater circuit - bank 1 sensor one. You did
>> check the heater circuit before you replaced the sensor, right ????
>
> Uhhhh -seeings as how I don't know what you are talking about the
> answer is clearly no Smile.
>
> How do you 'check the heater circuit'?

You need to check for power and ground on the wires going to the O2 heater.
You will need a wiring diagram and a multi-meter to check for power and
continuity. You could check all the fuses as the power to the heater should be
on a fuse. I don't know which fuse it would be but just check them all and
replace any that are blown.
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