Question about Cars & Trucks
Powertrain Control Module Read Only Memory (ROM) Error
Replace the PCM its faulty.It should still be under the 7 year warranty.
Posted on Oct 25, 2012
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Posted on Jan 02, 2017
I also was concerned about my tranny in my 1998 dodge caravan. I replaced the fluid & filter and it worked for a while. I finally had to bring it to AAMCO Transmission and they gave me a free evaluation of it & an estimate for the job. I had the option of ignoring their evaluation results and bring it home or just bite the bullet and have it repaired. I thought I could get a lot more miles out of it so I had it fixed for $1400 with no regrets.
Perhaps if you can find a similar place with free evaluation & estimate then that would be the thing to do as you seemed to have covered all the other bases.
Posted on Dec 03, 2008
The code you have is difinitely idle air control motor. I guess you could check continuity and compare to a known good unit, but this test may not be valid. Before condemming it though, make sure "business end" is clean and free of carbon or varnish. That applies to passage into plenum as well. If everything is clean then replace unit.
Posted on Jan 08, 2009
SOURCE: po605 and po700
p0700 is a generic trans. code, so the problem if it is in the trans. would require further trans diag. so i would scan trans specific codes first. but in most cases when a chrysler tells you it is an internal controller fault you can believe it. just make sure which controller it is telling you has a fault!
Posted on May 19, 2009
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Mar 20, 2014 | 2005 Lincoln Navigator
When the service engine soon light a yellow light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.
Nov 08, 2012 | 2005 Nissan Altima
The Engine and Automatic Transmission (not applicable to manual transmissions) in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for correct spec for your make and engine type.
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