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ECU for Jeep Cherokee
Hi,
does anybody know, if there is some programming or calibration to be done if the engine control unit is replaced? Or do I just plug it in and thats it? Thanks for the advice. Jo |
Re: ECU for Jeep Cherokee
"reigelser" <reigelser@sbcglobal.net> wrote in message news:NuBqe.9401$_A5.776@newssvr19.news.prodigy.com ... > Hi, > does anybody know, if there is some programming or calibration to be done if > the engine control unit is replaced? Or do I just plug it in and thats it? > Thanks for the advice. Big difference among the years, IIRC... I'm pretty sure that all the modules have to agree on the odometer miles, among other things, on mine. ECM, PCM, CCCM, DRBII, DRBIII... alphabet soup. On my '00XJ, buried way down on pg 14-1 Fuel Systems, is the following: PCM VIN REPROGRAMMING OPERATION USE THE DRB SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE (PCM) WITH THE VEHICLES (sic) ORIGINAL IDEN- TIFICATION NUMBER (VIN) AND THE VEHI- CLES ORIGINAL MILEAGE. IF THIS STEP IS NOT DONE, A DIAGNOSTIC TROUBLE CODE (DTC) MAY BE SET. The way I read this, you can pop one in and it will work... but your MIL (malfunction indicator light) will illuminate, and I don't have a clue as to whether it will ever go out. There should be some safeguards preventing folks from resetting their odometers.. that's what this is all about. If you don't have a digital odometer, chances are you've got the earlier ECU, and can plug-and-go... it may take a few start-stop cycles to learn all the operating parms for your engine. Why the new ECU, btw? __ Steve .. __ Steve .. |
Re: ECU for Jeep Cherokee
"reigelser" <reigelser@sbcglobal.net> wrote in message news:NuBqe.9401$_A5.776@newssvr19.news.prodigy.com ... > Hi, > does anybody know, if there is some programming or calibration to be done if > the engine control unit is replaced? Or do I just plug it in and thats it? > Thanks for the advice. Big difference among the years, IIRC... I'm pretty sure that all the modules have to agree on the odometer miles, among other things, on mine. ECM, PCM, CCCM, DRBII, DRBIII... alphabet soup. On my '00XJ, buried way down on pg 14-1 Fuel Systems, is the following: PCM VIN REPROGRAMMING OPERATION USE THE DRB SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE (PCM) WITH THE VEHICLES (sic) ORIGINAL IDEN- TIFICATION NUMBER (VIN) AND THE VEHI- CLES ORIGINAL MILEAGE. IF THIS STEP IS NOT DONE, A DIAGNOSTIC TROUBLE CODE (DTC) MAY BE SET. The way I read this, you can pop one in and it will work... but your MIL (malfunction indicator light) will illuminate, and I don't have a clue as to whether it will ever go out. There should be some safeguards preventing folks from resetting their odometers.. that's what this is all about. If you don't have a digital odometer, chances are you've got the earlier ECU, and can plug-and-go... it may take a few start-stop cycles to learn all the operating parms for your engine. Why the new ECU, btw? __ Steve .. __ Steve .. |
Re: ECU for Jeep Cherokee
"reigelser" <reigelser@sbcglobal.net> wrote in message news:NuBqe.9401$_A5.776@newssvr19.news.prodigy.com ... > Hi, > does anybody know, if there is some programming or calibration to be done if > the engine control unit is replaced? Or do I just plug it in and thats it? > Thanks for the advice. Big difference among the years, IIRC... I'm pretty sure that all the modules have to agree on the odometer miles, among other things, on mine. ECM, PCM, CCCM, DRBII, DRBIII... alphabet soup. On my '00XJ, buried way down on pg 14-1 Fuel Systems, is the following: PCM VIN REPROGRAMMING OPERATION USE THE DRB SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE (PCM) WITH THE VEHICLES (sic) ORIGINAL IDEN- TIFICATION NUMBER (VIN) AND THE VEHI- CLES ORIGINAL MILEAGE. IF THIS STEP IS NOT DONE, A DIAGNOSTIC TROUBLE CODE (DTC) MAY BE SET. The way I read this, you can pop one in and it will work... but your MIL (malfunction indicator light) will illuminate, and I don't have a clue as to whether it will ever go out. There should be some safeguards preventing folks from resetting their odometers.. that's what this is all about. If you don't have a digital odometer, chances are you've got the earlier ECU, and can plug-and-go... it may take a few start-stop cycles to learn all the operating parms for your engine. Why the new ECU, btw? __ Steve .. __ Steve .. |
Re: ECU for Jeep Cherokee
"reigelser" <reigelser@sbcglobal.net> wrote in message news:NuBqe.9401$_A5.776@newssvr19.news.prodigy.com ... > Hi, > does anybody know, if there is some programming or calibration to be done if > the engine control unit is replaced? Or do I just plug it in and thats it? > Thanks for the advice. Big difference among the years, IIRC... I'm pretty sure that all the modules have to agree on the odometer miles, among other things, on mine. ECM, PCM, CCCM, DRBII, DRBIII... alphabet soup. On my '00XJ, buried way down on pg 14-1 Fuel Systems, is the following: PCM VIN REPROGRAMMING OPERATION USE THE DRB SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE (PCM) WITH THE VEHICLES (sic) ORIGINAL IDEN- TIFICATION NUMBER (VIN) AND THE VEHI- CLES ORIGINAL MILEAGE. IF THIS STEP IS NOT DONE, A DIAGNOSTIC TROUBLE CODE (DTC) MAY BE SET. The way I read this, you can pop one in and it will work... but your MIL (malfunction indicator light) will illuminate, and I don't have a clue as to whether it will ever go out. There should be some safeguards preventing folks from resetting their odometers.. that's what this is all about. If you don't have a digital odometer, chances are you've got the earlier ECU, and can plug-and-go... it may take a few start-stop cycles to learn all the operating parms for your engine. Why the new ECU, btw? __ Steve .. __ Steve .. |
Re: ECU for Jeep Cherokee
depends on the year starting in 04 all pcm,s are shipped with out software and
it has to progammed by vin now more salvage yard pcm swapping reigelser wrote: > Hi, > does anybody know, if there is some programming or calibration to be done if > the engine control unit is replaced? Or do I just plug it in and thats it? > Thanks for the advice. > > Jo |
Re: ECU for Jeep Cherokee
depends on the year starting in 04 all pcm,s are shipped with out software and
it has to progammed by vin now more salvage yard pcm swapping reigelser wrote: > Hi, > does anybody know, if there is some programming or calibration to be done if > the engine control unit is replaced? Or do I just plug it in and thats it? > Thanks for the advice. > > Jo |
Re: ECU for Jeep Cherokee
depends on the year starting in 04 all pcm,s are shipped with out software and
it has to progammed by vin now more salvage yard pcm swapping reigelser wrote: > Hi, > does anybody know, if there is some programming or calibration to be done if > the engine control unit is replaced? Or do I just plug it in and thats it? > Thanks for the advice. > > Jo |
Re: ECU for Jeep Cherokee
depends on the year starting in 04 all pcm,s are shipped with out software and
it has to progammed by vin now more salvage yard pcm swapping reigelser wrote: > Hi, > does anybody know, if there is some programming or calibration to be done if > the engine control unit is replaced? Or do I just plug it in and thats it? > Thanks for the advice. > > Jo |
Re: ECU for Jeep Cherokee
"tim bur" <dbrider@cac.net> wrote in message news:42ABA761.F70549FF@cac.net... > depends on the year starting in 04 all pcm,s are shipped with out software and > it has to progammed by vin > now more salvage yard pcm swapping ^^^^^^^ One letter... how it changes things. Tim probably meant 'no'... __ Steve .. > reigelser wrote: > > > Hi, > > does anybody know, if there is some programming or calibration to be done if > > the engine control unit is replaced? Or do I just plug it in and thats it? > > Thanks for the advice. > > > > Jo > |
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