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I'm having problems with my pcm. I have put in an

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2 Answers

You can install yourself, but how would you
know it had a problem,they seldom do.
It would have to be towed to a shop & be
reflashed as built & updated
That requires a subscription from ford
I would have the truck properly diagnosed
somewhere.
You could send your pcm out & have the info
downloaded & then put into the blank one
You talking about something I doubt one person
in thousands that work professional have ever or will
ever do.

Posted on Jul 24, 2013

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  • Contributor
  • 24 Answers

You will need to dealer to program it with the IDS, it should cost about 0.5HR labor

Posted on Jul 24, 2013

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Posted on Jan 02, 2017

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SOURCE: pcm location for door code on a 2001 ford expedition

call ford dealer

Posted on Aug 22, 2009

emissionwiz
  • 75817 Answers

SOURCE: used pcm/ecm for a 2001 Ford Expedition

1st it must be the correct engineering number, not just the same year, but the exact same number on the sticker. then it must be programmed by the dealer

Posted on Nov 03, 2009

  • 1 Answer

SOURCE: 2000 Dodge Caravan PCM replacement

2001 Dodge Caravan died warming up in the driveway last weekend. Turned the key and no engine cranking. Lights on the dash all lit and completed internal diagnostics normally. Keyless entry worked and the battery seemed OK. On closer inspection there was no clicking from the starter that would indicate a weak battery, nor were there any Diagnostic Trouble codes (DTC's) set by the computer (PCM) -I have a scan tool. Checked fuses and relays with volt meter in the realy center next to the PCM. By by following the schematic (using a Haynes manual) I was able to supply battery to the starter (the engine cranked just fine) and the fuel pump (it ran).

On further investigation I determined that the PCM was not supplying ground to the Automatic Shutdown Relay, or the Start relay. As the camshaft sensor and/or the crankshaft sensor can tell the PCM to shutdown, I repalced those two items on a long shot to no avail. Had the car towed to a shop I work with and they came to the same conclusion that I did -- the PCM needed replacement.

Called NAPA and they sold reconditioned units for about $170 (with core return) there was a nationwide backorder on them (Don't know why). Found an online outfit All Computer Resources, that had refurb units. The unit was more expensive, but they programmed the VIN and milage in before shipping. I had the unit overnighted to the shop. It arrived the next morning and I had my fingers crossed. The VIN determines the PIN for the passive security system (SKIS code). But, there were no problems. I picked the car up the next day. So far it's running just fine.

PS: if you pick a unit up from the junk yard you will have to get the VIN programmed in before it will run. It might start, but the security system will shut it down. Hope this helps someone.

Posted on Dec 19, 2009

Testimonial: "sorry for the late response. This worked great. Thanks,"

iambanshee74
  • 3489 Answers

SOURCE: Need to replace PCM in 1997 Chrysler Cirrus 2.5

you dont need to reprogram it but the numnbers do need to match or you can get really wierd issues.

Posted on Jan 28, 2010

Testimonial: "Although I haven't tried this yet I believe that I have the definitive answer to my question. It's at least the answer I wanted to hear! Thank you!"

  • 447 Answers

SOURCE: Installing a new PCM on a 2005 Pontiac Vibe

The new PCM on these has to be programmed either by the people that built it or by someone who has the capability to reprogram it [usually a dealership]. The computer can be programmed before it is installed and usually they'll need the VIN#, mileage, etc to do this properly. I don't believe the vehicle will run if you put in an unprogrammed PCM. It's very rare for one of these PCM's to fail so make sure that you haven't overlooked some other problem that is mimicing a bad ECM before ordering one as they are quite expensive.

Posted on Jul 01, 2010

Testimonial: "Answered the questions i had. Keeps me from wasting time doing things backwards."

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1 Answer

Replaced pcm now doesn't start?


when you replaced your computer, did you remove the CHIP from the old computer ? to install it into the replacement computer ? if not ,thats your problem !!!!!!!!!!!!! you got ZIP, ZERO, NOTHING !!! BETTER GET YOUR CHIP BACK, IF YOU STILL CAN !

Mar 23, 2013 | 2004 Dodge Neon

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My 1997 Camaro z28 ecm keeps failing. Replaced 2 times what could be the cause?


the new pcms could have factory defects possible to buy 2 bad pcm in a row.might cost you see if dealership can hook up car to diagnostic equipment see where problem is a bad alternator with a higher voltage out put will burn out pcm.static discharge from finger can damage pcm.pcm wire connector could have short many things will short out pcm.

Jan 10, 2013 | 1997 Chevrolet Camaro

1 Answer

Changed motor car wont charge found 4 broken wires in harness 2 in ground repared them still wont charge was told pcm needs to be replaced and programmed. what about pigtail on alternator being bad


Yes, repair the alternator wire. The pcm does not control alternator output, it only uses and monitors it. I don't know if it is a problem, but maybe from the bad wiring you found may have affected it. Don't know who told you to replace the pcm, but think I'd get a second...well, a third opinion.
Sorry I can't help you more, good luck.

Nov 06, 2012 | Cars & Trucks

1 Answer

Just replaced my starter engine light won't go off 2006 Honda accord v6


Scanned the PCM in order to know what fault code is stored there; note it and send us for additional details.

Sep 04, 2012 | Honda Accord Cars & Trucks

1 Answer

97 ford ranger code po118


If by ECS you are referring to the engine coolant temp sensor, the most common cause is that the coolant temp sensor goes bad and usually bias' towards the cold side of its sensing range which is around minus 40 degrees,(-40F). When this occurs the PCM had to over fuel to counter act the extreme cold in order to start the engine. But in normal temp areas this strategy just floods the engine. When the sensor is unplugged, the PCM substitutes the missing signal with a generic fail safe protocol which is preprogrammed. If the sensor is -40F, the vehicle just thinks its in Alaska, it doesn't know it has a bad sensor the PCM is just reacting to what the sensor is telling it. Its possible that either the wiring, or sensor connector has and open, short, or high resistance which may be the reason why replacing the sensor didn't work. Or maybe the wrong sensor was replaced, there should be two coolant temp sensors, one for the gauge, and one for the PCM. The PCM sensor is the one in question, to be honest, the PCM could be causing this as well, but at least you have a place to start.
I hope this info helps!~subyguru~

Mar 31, 2012 | Ford Cars & Trucks

1 Answer

The radiator fan of my 1996 grand caravan se is on at high power all the time. service advisor said i need to replace the PCM. is is safe to get from a pick and pull for this part or just order from the...


Junk yard PCM's are usually safe and most have a very limited warranty (but usually only if a shop is doing the work). These PCM's are very specific so make sure that every number matches. Some older PCM's are superceded and have different numbers but will work. The junk yard should know if this is possible. Ask about a warranty or even a test try. Bring the van down and swap it right there to see if it works and/or resolves the fan issue. Even try offering him a restocking fee if it doesn't fix the problem (before you buy/install it of course). I would not recommend the web unless you are guaranteed a refund. There are too many variables in getting the correct one. Thanks and please rate.

Sep 05, 2011 | 1996 Dodge Grand Caravan

1 Answer

I have a 2006 envoy and it has a computer is on the engine and it will crank but it dies if i take a heat lamp and put on it then it will run do i need to replace computer


1 thing to check before you go replacing the PCM. We have plastic intake manifolds which are right below the PCM where your heat lamp was. With temperature related problems similar to this, I'd check the manifold bolts for tightness (these have a tendency to become loose causing vacuum problems). Easiest to check are #5 & #6 near the firewall. When the engine warms up, the plastic will expand causing no problems, but when it's cold, will contract and have vacuum leaks. Do you have any check engine lights? pcmforless.com is a good sight for repairing PCM problems if you deem this is indeed the problem. You can send your PCM in and they even send you a loaner PCM while yours is being repaired, but they have several programs to choose from.

May 19, 2011 | 2006 GMC Envoy

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