Question about Chrysler Cars & Trucks

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I have a 2002 Chrysler PT cruiser, with p0601 fault. I ordered a reman and preprogrammed ECM from a company, and it fired and 1st time running ran fine no light, 2nd time I started, same fault.

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  • Nathan Anderson
    Nathan Anderson Apr 18, 2015

    Company said possibly because I disconnected battery when installing it I fried it, so they are sending a new one. That doesn't make sense to me but ok, so I sent theirs back and put my old one back in, car runs fine, just constant check engine light and I'm trying to get it turned off to sell it



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Check batt voltages

Posted on Apr 18, 2015

  • Nathan Anderson
    Nathan Anderson Apr 18, 2015

    Battery static voltage is 12.5v, charging at 14.1v all is ok, I'm baffled, I called the company I got the new ECM from and told them, and they are sending me another new one so hopefully that will work, otherwise I don't know what else to do. I checked the voltage at ECM, less than .2 volt drop to both key on and constant power and both grounds are good.



6 Suggested Answers

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Posted on Jan 02, 2017

66 chrgr
  • 1011 Answers

SOURCE: where is the crank sensor located on 2005 chrysler pt cruiser?

the crank sensor is located on back right side of engine by were the trans. bolts the no start when could or hot?

Posted on Jan 25, 2009

  • 6784 Answers

SOURCE: Change the thermostat on 2002 Chrysler PT Cruiser

Hi, i have put together a step by step guide that will help you with this replacement job. Make sure the vehicle is in a cool state before starting this job.

* Drain some coolant into a clean container until the coolant level is below the thermostat housing.
* Remove the upper radiator hose connection from the thermostat housing.
* Loosen the housing bolts and remove the housing.
* Remove the gasket and scrape it carefully from the surface of the housing and the mounting surface on the engine. If the gasket remains on either of the surfaces, there will probably bea coolant leak after reassembly. Some engines use a rubber O-ring to seal a thermostat housing.
* Compare the size of the thermostat to the old one. They are of different sizes, types, and temperature ratings.
* The temperature rating is stamped on the sensing bulb on the bottom of the thermostat. The temperature bulb faces the block.
* When replacing a thermostat, be sure that the thermostat fits into the groove in the block or outlet housing. If the thermostat is installed upside down, the engine will overheat.
* Install the gasket.
* Reinstall the thermostat housing. Refill the system and run the engine or pressure test to check for leaks.
* When the engine has reached operating temperature make sure the thermostat opens.
* You should be able to see coolant circulating within the radiator.
* Another way of checking thermostat operation is to feel the top of the radiator hose or use a thermometer or multimeter with a temperature probe to confirm that the coolant is warming up.
* If the engine is overheating, but the top hose is still cool to the touch, the thermostat is stuck closed and must be replaced.

When a paper gasket is used and the recess is in the thermostat housing, it is a good practice to position the thermostat into the recess and glue the gasket to hold it in place. If it falls out of its groove during installation, the outlet housing can be cracked or a coolant leak will result. Before tightening the water outlet housing, try to rock it back and forth to be sure it is flush. Housings are often cracked during this step.


Posted on Apr 30, 2009

  • 32 Answers

SOURCE: fog lights came on; can't turn them off

1.At first take out the foglight's fuse before you battery is dead. (Fog lights stays "ON" even you leave the car).

2.You must replace the Multifunction control switch =(

Here is the photo of problem:

Fog lights are connected to pin 13,14.
Fog light switch is "B". Because the current is many Amps, contact surfaces are heating up.
After that the contact opening "C" is melting (made of plastic) so the fog light stays "ON".

Posted on May 29, 2009

  • 1 Answer

SOURCE: "Check Engine light"

The issue is that the system randomly checks the loop of the fuel system to confirm that it has no leaks. A missing cap is the easy one to correct. It might also be a slpit in the rubber hose that connects the fuel fill tube (on the chassis) to the one on the tank, or any other hose in the the entire fuel delivery/ fume recovery sysrtem. The solenoid that allows the engine's vacuum to be used to conduct this test can also be sticking so that after the test cycle, it doesn't reclose. Good luck

Posted on Dec 10, 2009

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1 Answer

How do I get code p0601 out.have done everything unhooked battery,cleaned all ground car will not start.changed battery a cam scencor

code p 0601 refers to engine control module ( ECM) memory check sum error ===causes--- ECM
to correctly reset an ECM use a scan tool for the job
removing the battery can corrupt the CPU program of the ecm and while if can work in some instances there are many cases where other problems are created by that method
Try substituting a know good ECM if the reset fails

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Where is the ECM located?

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Dec 30, 2015 | 2002 Chrysler PT Cruiser

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I have a 2002 non turbo PT Cruiser with new zero miles engine installed. Engine will not run as computer is locked in Theft Mode. We never had an alarm system installed but I'm told the car is wired and...

The ECU is not reading the chip in the key. Replacing the ECU will not solve the problem. It is an input issue(signal to ECU) not an output issue ( signal from ECU). Perform an OBDII scan of stored fault history. Probably an ignition switch problem.

May 26, 2017 | 2002 Chrysler PT Cruiser

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My 2002 pt cruiser won't shift out of low.

the 2nd & 3rd gear solenoid needs replacing. It is mounted by the trans filter inside the trans pan

Jul 27, 2010 | 2002 Chrysler PT Cruiser

1 Answer

How can i check the celenoide on 2002 pt cruiser

I can only assume that you made an unintentional error with you spelling of 'celenoide' the way i would spell it is sellinode. An electrical device that permits the electric starting motor to engage with the propulsion engine of the car. This device is built in the small electric starting motor and can only be checked by downloading fault codes from the ECM

Jun 20, 2010 | 2002 Chrysler PT Cruiser

1 Answer

Car has code P0601, we just had the timing belt replaced. I know this is a check sum error. Does PCM have to be replaced?

P0601 means PCM Internal Controller Failur

It just needs to be troubleshooted and if found to be bad, a replacement might be necessary.

Good luck and rate this solution.

Jan 13, 2010 | 2002 Chrysler PT Cruiser

1 Answer

Can't get 2002 PT to start after replacing plugs and wirekit

Check a haynes manual or online to ensure the wires are running in the correct firing order and each is securely connected. Also, if you have an alarm kill switch on your car, when you reconnected the battery after doing the plugs and wires it may have reset the kill switch. If its cranking but not turning over, then it most likely is the firing order if you didn't change anything else.

Dec 30, 2009 | 2001 Chrysler PT Cruiser

1 Answer

I HAVE PT CRUISER 2002 CODEPO601 PROBLEM Can you tell me what the diagnostic code P0601-PCM problem

DTC P0601, internal controller fault. Replace the PCM. As the name of the fault implies , this is an internal pcm fault . There are no other known causes of this fault other than a defective pcm.

Jun 05, 2009 | 2002 Chrysler PT Cruiser

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