Question about 2001 Chrysler Town & Country

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Resetting the computer

I CHANGED THE INPUT AND OUTPUT SENSORS ON THE TRANSMISSIOWILL THE CHECK ENGINE LIGHT GO OFF IN A FEW DAYS OR DO I NEED TO RESET THE COMPUTER AND IF I HAVE TO HOW DO I DO IT .

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  • Mike Kerwood
    Mike Kerwood May 11, 2010

    This did not help me?



    Jbsam5



    any more help would be greatfull.......

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I would reset your computer. CEL will stay on unless you clear the codes or reset the computer. To reset the computer you will need to pull the negative cable off the battery for 20 Seconds, place it back on for 5 seconds then back off for 20 seconds then back on for good. Thanks for using fixya!

Sincerely,

JC

Posted on Dec 06, 2008

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Replaced pack on top of spark plug. lite went off but think code needs to be erased HOW!!!!

Posted on Jun 26, 2013

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1 Answer

Have replaced speed sensor and speedometer, but speedometer still does not work. Do you have any suggestions on what to try next?


There are usually TWO speed sensors on modern day vehicles, INPUT and OUTPUT. You may have changed one of these , but you may need to change the other. Ask your parts supplier, they will help you with the other. GOOD LUCK FRIEND.

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What does it mean when the engine light is on?


Newer vehicles are equipped with a computer that monitors many sensors and devices. If an sensor input to the computer is not right; the computer will turn on the " check engine" light.
A OBD tool, plugs into the computer to see what the error is.
The OBD tool can also reset, the "check engine" light; after repairs.
http://en.wikipedia.org/wiki/On-board_diagnostics

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How can I reset anew output speed sensor on a 2001 hyundai xg300


There is nothing do do to reset it. After you change it you're done. If you're talking about your check engine light being on, you can reset it with a scan tool. If you don't have access to one, disconnect the battery and wait a couple minutes before connecting it back. If you're having actual mechanical issues after you've installed the output sensor you might need to replace the input sensor also.

Jul 13, 2014 | 2004 Chevrolet Suburban

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If you replace the o2 sensor and that is the problem of why the check engine light is on then yes it will reset on its own. this will take a few days of driving due to the computer running all its tests and all passing then light will shut off.
the code you have is for a bad o2 sensor or wiring to it, there are a couple of o2 sensors, this code is for the rear o2 sensor.

May 09, 2013 | 1998 Volvo S70

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Can I replace the transmission solonoid on a 98 Town and Country Van without resetting the computer?


It depends. Are there codes in the computer now? Has it bee reset since you replaced the input speed sensor? If the codes are still in there, the transmission may still be in limp-in mode.

Your transmission is computer controlled. Trying to diagnose or repair it without the ability to interface with the computer that controls it about the same as surfing the internet with no monitor. If you push the right buttons and click your mouse just right, you might get to the page you are looking for (not likely, but possible). However, when you do get there, you still won't know it....

Feb 21, 2012 | 1998 Chrysler Town & Country

1 Answer

Which codes (OBDI or II) do I use for my 1994 Jeep Grand cherokee laredo 4.0 2wd


before 1996 they use onboard diagnosis system for jeep.

when you turn on key you need to count check engine light blinks.

here are codes taken from internet.

11* No crank reference signal detected during engine cranking.
12* Direct battery input to PCM was disconnected within the last 50 key-on cycles.
13** No difference recognized between the engine MAP reading and the barometric (atmosphereic) pressure reading at start-up
14** MAP sensor input below minimum acceptable voltage.
or
MAP sensor input above maximum acceptable voltage.
15** No vehicle distance (speed) sensor signal detected during road load conditions.
17* Engine coolant temperature remains below normal operating temperatures during vehicle travel (thermostat).
21** Neither rich nor lean condition detected from the oxygen sensor input.
or
Oxygen sensor input voltage maintained above the normal operating range.
22** Engine coolant temperature sensor input above maximum acceptable voltage.
or
Engine coolant temperature sensor input below minimum acceptable voltage.
23** Intake manifold air temperature sensor input above maximum acceptable voltage.
or
Intake manifold air temperature sensor input below minimum acceptable voltage.
24** Throttle position sensor input above maximum acceptable voltage.
or
Throttle position sensor input below minimum acceptable voltage.
25** A shorted condition detected in one or more of the idle air control motor circuits.
27* Injector #1 output driver does not respond properly to the control signal.
or
Injector #2 output driver does not respond properly to the control signal.
or
Injector #3 output driver does not respond properly to the control signal.
or
Injector #4 output driver does not respond properly to the control signal.
or
Injector #5 output driver does not respond properly to the control signal.
or
Injector #6 output driver does not respond properly to the control signal.
33* An open or shorted condition detected in the A/C clutch relay circuit.
34* An open or shorted condition detected in the speed control vacuum or vent solenoid circuits.
or
Speed control switch input below the minimum acceptable voltage.
or
Speed control switch input above the maximum acceptable voltage.
35* An open or shorted condition detected in the radiator fan relay circuit.
41* An open or shorted condition detected in the generator field control circuit.
42* An open or shorted condition detected in the auto shutdown relay circuit.
44* An open or shorted condition exists in the engine coolant temperature sensor circuit or a problem exists in the PCM's battery temperature voltage circuit.
46** Battery voltage sense input above target charging voltage during engine operation.
47** Battery voltage sense input below target charging voltage during engine operation. Also, no significant change detected in battery voltage during active test of generator output.
51** Oxygen sensor signal input indicates lean air/fuel ratio condition during engine operation.
52** Oxygen sensor signal input indicates rich air/fuel ratio condition during engine operation.
53* PCM internal fault condition detected.
54* No fuel sync (camshaft signal) detected during engine cranking.
55* Completion of diagnostic trouble code display on the malfunction indicator lamp (check engine lamp).
62* Unsuccessful attempt to update SRI (service reminder indicator) miles in the PCM EEPROM.
63* Unsuccessful attempt to write to an EEPROM location by the PCM.

* - Check engine lamp will not illuminate at all times if this code was recorded. Cycle ignition key as described and observe code flashed by check engine lamp.

** - Check engine lamp will illuminate during engine operation if this code was recorded.

PCM = Powertrain Control Module (the engine computer)
MAP = Manifold Absolute Pressure (the sensor that measures how hard the engine is sucking air through the intake manifold
EEPROM = Electrically Erasable Programmable Read Only Memory (a type of computer chip used inside the PCM)

Nov 19, 2011 | 1994 Jeep Grand Cherokee

1 Answer

I got the engine service soon and i put the computer code and told me that speed sensor problem i change that but the light still coming on, and i put a nissan speed sensor that mean dealer sensor, and i...


It's possible you fixed the problem and just need the code to be reset. Some codes will reset themselves after the repair is made. Others take time to reset (a few days in some cases). There are some codes that are stubborn and need to be reset by a OBDII code reader.

Jul 22, 2011 | 1998 Nissan Frontier

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