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Check engine light with O2 codes after both sensors have beenreplaced
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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#2
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Check engine light with O2 codes after both sensors have been replaced
> wrote in message ... >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 ???? |
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Check engine light with O2 codes after both sensors have beenreplaced
On Apr 25, 10:42 am, "Mike" > wrote:
> > wrote in message > > ... > > >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 . How do you 'check the heater circuit'? |
#4
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Check engine light with O2 codes after both sensors have been replaced
> wrote in message ... > On Apr 25, 10:42 am, "Mike" > wrote: >> > wrote in message >> >> ... >> >> >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 . > > 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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