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Error Code Engine light came on after car was serviced. Error code po605?

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Ed Woods

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P0605 reffers to a pcm read only memory (rom) error...Not likey a good thing..I would take it back to where it was serviced. At times unplugging the scanner while the vehicle is running and scanne in the middle of a test can cause that light to come back with that code. For sure return to service facility and get them to fix it.....

Posted on Aug 11, 2008


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2001 dodge intrepid 2.7. Code p0605. Changed tcm started car no service engine light. Pulled out but wouldnt shift into 3rd or overdrive still. Service eng. Light came back on now what do I do?

I can't remember what a PO605 code is off-hand, but I do know that it is a PCM code, and not a BCM code. There are 2 different computers.

Oct 29, 2013 | 2001 Dodge Intrepid

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po700 automatic transmission control system malfunction. code po605 engine control module ROM error. code p1192 inlet air temperature circuit low.

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Trouble code PO605

Its whats called an error code in my opinion.... Here's what to do...locate your ECM ,pull the plug spray with QD cleaner ....and reinsert..... 99 to 1 your light will go away....oh u may have disconnect the battery after wards to actually turn it off but that should work...hope that helps

Nov 24, 2012 | 2001 Hyundai Elantra

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What does po605 code mean?

Dear Oti,

Replace The TCM. This Code Comes Up When Transmission Gets Stuck In A Gear.
Hope This Helps.
Alex :o)

Dec 01, 2011 | 2001 Dodge Caravan

2 Answers

2002 Dodge Neon, approx 99,000 miles, engine light came on, error code PO605 & another error code related to transmission, auto transmission - driving anything over 25 mph won't "kick up"...

The transmission Control Module (TCM) is located behind the passenger fender and is fastened to the frame rail forward of the suspension. Here is a picture of it...


Aug 02, 2011 | 2002 Dodge Neon

1 Answer

I have a 2001 Chryler Concorde with a 2.7L engine. The engine light came on a gave me 2 codes... PO700 and PO605.. Can you help me by telling me what i can change?

P0700 indicates the transmission control module has a code in it. That code is P0605 which indicates a TCM internal memory error. While the TCM would probably be the leading suspect you can't rule out other possibilities like corroded connections, etc.

May 10, 2011 | Chrysler Concorde Cars & Trucks

1 Answer

Tranny not shifting, check engine light on W/code PO605 and P1793 reset light code PO605 came back

Trouble Code: P0605

Internal TCM Error
Possible Causes:

PCM needs to be replaced, and then reprogrammed

Nov 04, 2010 | 2002 Dodge Neon

2 Answers

Won't shift into high gear

po700 is the code in the pcm,telling you there is a code in the tcm( trans control module) po605 is a internal tcm error replace and program the trans control module

Sep 01, 2009 | 2002 Chrysler Town & Country

1 Answer

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!

May 18, 2009 | 1999 Dodge Caravan

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Po605 internal transmission tcm mulfunction dvd

Do not walk, RUN from that repair shop. A PO605 reading is "PCM read only memory test error". There is no way a problem in your DVD player would result in a "check engine" light. Take the van by Autozone, Advance Auto, Pep Boys, O'Reily's or other retail store and have them run the fault codes on the OBD-2 computer to find out why the light is coming on. If you are having trouble with the DVD player, go by a stereo/video shop.

Mar 05, 2009 | 2002 Chrysler Town & Country

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