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Discussion Starter #1
Hi there,

I ordered an OEM PCM and had it flashed with the new updates, VIN, and mileage. The reason was for the P0601 code on my 00 PT 2.0 auto. The PCM arrived but the paper stated 2.4 but the VIN is correct. After I plug in, the new ECM immediately displayed the P1495 code. The P0601 is gone with the new ECM, but now I have the P1495 code and would not start :scared:
With my old PCM, it could start and run no problem but with desk light on and P0601 code.

I re-installed my old ECM and no longer get the P1495 code, but the P0601 code is there.

I was checking to see if any of you have ran into this with an ECM/PCM replacement. Do you think that the new ECM was sent defective or 2.4 is a problem...?

someone tells me to Swap the two outer wires on coil connector or swap spark plug wire #1 with # 2, and #3 with #4. Do you think is a good idea and would this bad for the Engine?

P.s I am having this car in Hong Kong. There is only 8 in Hong Kong so I could not get much help here.
I order the PCM from USA and it seem I have to send back to them for resend but they stated the pcm was programmed the unit of my vin# and part number I hope they will take the shipping cost as it cost around $100 in one way.

Thanks and your suggestion is highly appreciate!
 

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Welcome to Allpar. The P1495 fault code is for the Leak Detection Pump (LDP), an emissions component which you may not have in your vehicle due to the export market. However, that in itself shouldn't keep the car from starting. On your underhood vacuum line diagram label does it show an LDP equipped in the drawing?
I have never heard of the coil wire swapping and wouldn't do that. You would have P0351 and P0352 codes if the PCM thought that was the problem.
The US market PT's have the 2.4L. The 2.0L is for export. I believe that they sent you the wrong PCM. What is the part # on the label on your PCM?
If this is a US based PCM rebuilder, they may not have 2.0L PCM's for PT's and you may have to go to Chrysler. We only had the 2.0L on the Neon and some JA-body cars.
 

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Discussion Starter #3
Thank you for the welcoming.

I took a picture of the diagram label. http://www.imagebam.com/image/986223233633720][IMG]
You are correct that I do not see there is LDP. Pls correct me if I am wrong

The guy who suggest to swap the wires stated that it is so popular people build aftermarket pieces for this specific swap.
They suggest using 21 (or 24 lb?) injectors instead of 2.0's 19lb when they swap. In here, I have no idea here.

The part # on my PCM is P05033117AD
S/N T64EH23801LSPH
My VIN# is 1C8FZBB931T538407

Hope you could give me suggestion. Many Thanks
 

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Since your car won't start, why would you add more variables by swapping wires? The PCM is obviously the reason it won't start. Don't touch other systems until that is squared away.
 

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Discussion Starter #5
Hello Bob,
the car run no problem with my old pcm but the eng. light on as well as P0601 code.
Since my wife often drive the PT to pick up childern so we are crossing fringer everyday.
As there are not too many in Hong Kong and we love to driving this around.
I wish to have this fix so I bought an oem pcm and hope it solve the problem.
However, after plug in the car would not start and has P1495 code.
any idea, pls suggest. Many Thanks
 

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The car can still run with a P0601 fault code (microprocessor fault), but for how long is anybody's guess. The 'ck eng' light being on may be the only symptom.
P05033117AD is an export PCM that superseded to R5033117AE (latest version). Your PT is a 2001 as there were no 2000 PT's.
I would call the company that you purchased it from and investigate returning the PCM as it is defective and I do wish you good luck with that. This part is probably not available to US dealers.
I found this on the internet, but I can't vouch for them as I have never done business with them.

http://www.partswebsite.com/moparonlineparts/oemparts/5033117AE.html
 

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Discussion Starter #7
Thanks Crown for the great help, This is what I worry of how long the car may have problem. I have talk with the OEM PCM company with a very good reply from them. They would send another computer to me as they think it may be the ex-ray during shipping. I will keep you post. Many Thanks
 

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Is your car equipped with an Immobilizer that may prevent starting with a foreign PCM? Or is the Immobilizer a separate module?
I can't see an X-ray harming a PCM, but it may be possible.
 

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Discussion Starter #9
I agreed with you that the x ray will not harm the pcm. However, I think the OEM PCM company do know.
Otherwise they will not send another one to me. I am cross my fringer this time will work out.
Yes it is equipped with the Immobilizer but i think it is a factory one only.
Since this is a 2nd hand car where we bought this in 2 months ago.
 

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Correct me if I'm wrong, but does the PCM need to be programmed for the specific keys used to start the car?
 

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If it has a gray-bodied key, it would have the SKIM option. I'm not very familiar with the European Immobilizer way of doing things, but I think that it is a separate stand-alone module in communication with the PCM. SKIM would require a 4-digit PIN to be programmed into the replacement PCM.
This is a UK spec vehicle with Euro 3 emissions that includes evaporative controls, but probably not OBD II or an LDP.
There are 2 old open recalls on this vehicle (according to your VIN) concerning the fuel pump. I would call the local dealer to see if they can still perform recalls # B23 and D54.
 

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Discussion Starter #12
Crown, Thanks for the infor. Yes it is a Gray body key and the remote control in black color. There are only 2 button on the remote which is lock and unlock. (no picnic botton)
Press one time to open the driver door and the 2nd time to open all door.
Unfortunely there is no offical dealer in Hong Kong. I have this as used.
The OEM PCM company is ready to send out the PCM for me without cost and I will take the delivery cost.
I would guess the recall has fixed (hope!) as this is a 2001 car but I will try to write an email to Chrysler at the state to see their record.
I hope all is ok. Many thanks. I will keep post
 

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I think you may have an issue where the new PCM does not have the code for the keys. If the codes are not programmed, the car will not start. Your old PCM has the codes, therefore it will start. I think this is your issue. Is there any way you can get the key codes programmed in the new PCM?
 

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Discussion Starter #14
Oh no.. More and more problem it seems. I downloaded owner manual of 03 PT, since when It was not come with the owner manual when we bought the used PT. The engine would not stop in 2-3sec due to Immobilizer system if non progamme key used. However, my situation with the oem pcm is the engine not start at all. I am not sure, really not sure... I hope I have my PT in the state.
By the way, if this really come into a problem. Anyone know how to bypass the Immobilizer system?
At the meantime, I just sent an email to Chrysler and reported my situation for support. I hope they can give me some positive reply.
 

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The Immobilizer cannot be easily defeated. If you could just bypass the Immobilizer to start the car, so could the crooks.
If this PCM company is a full service company, they should be able to install the PIN code in the replacement PCM for you before shipping it. It may need this code installed to get the car started and running. If they are authorized by Chrysler, they must do this for you.
The 2003 PT was fairly similar to the 2001 PT, there were minor differences and you still may want to have the correct year manual.
 

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Discussion Starter #16
Thanks for all the information. I been contact some of the past buyer who do business with the OEM PCM company and they told me the VIN progam will cover the immobilizer issues and it is just a plug and play. I hope this is also for me. I am now in arranging for the pick up of the pcm with my express company. I will keep everyone post of my status.

At the meantime, I have email to Chrysler regarding the recall record as well. I hope they will give me a reply soon.
In regarding the fuel pump issues, will I be able to inspect by myself with little knowledge to see does it still have a problem?
 

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Discussion Starter #17
Guys, Thanks for all the help. I had my replacment pcm installed today.
It is running fine and no problem on the Immobilizer and no more error code.
Many Thanks and your guys has been very helpful
 

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Thanks for posting back and letting us all know, JohnnyNG. I was wondering if you ever got it fixed.I never replied to your original post, because I'm not a mechanic and didn't have a clue what to tell you. Happy motoring!
 

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Discussion Starter #19
Chuzz, Thanks for the message. I have now no Eng. light, P0601 code & P1495 code so I think the new oem pcm is good.
if you want to know the place where i get it pls let me know.

BTW, are you an elect., do you know where and how to test which abs sensor are fail? If yes, may you tell us where is the location to check? I found on net people could test the fail with Ohms meter but i have no circuit diagram and knowing the location of the abs control box location.
 

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An ABS light on doesn't necessarily mean that a wheel speed sensor has failed. There can be other reasons. Without a scan tool it will be difficult to diagnose this. You can measure the resistance of each sensor individually. I suspect that they should all be in the order of a few thousand ohms and all about the same.
The CAB (controller-antilock brake) is mounted underneath the master cylinder along with the pump and HCU (hydraulic control unit).
If the ABS light came on after installing the new PCM, you might try disconnecting the battery momentarily to see if whatever glitch occurred might be erased. Otherwise a service manual and scan tool is the best next step.

http://www.ebay.com/itm/2001-Chrysler-PT-Cruiser-ABS-Diagnostic-Service-Manual-/250375375338
 
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