Question about 2002 Jeep Grand Cherokee

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601 code ..internal control module memory check sum error..what does this mean

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It means the PCM (computer) is toast. Replace it with one from a wrecking yard if available.

Posted on Sep 26, 2009

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Posted on Jan 02, 2017

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I have a 2002 3.3 dodge grand cara van with a code p0601internal control module memorie check sum error . how do i fix this?????


Code 601 is a problem with the engine computer. The computer would need to be tested and probably replaced.

Feb 18, 2014 | 2002 Dodge Grand Caravan

1 Answer

P0601, and p0622


P0622 is "Generator field 'F' control circuit malfunction"- your alternator has a circuit malfunction in the voltage regulator function. You need to have the charging system checked. It may be a wiring problem in the circuit to the alternator. A shop needs to test it out.
P0601 is "Internal control module memory check sum error"- I have no idea what that means, but is probably set because the charging system has a malfunction, and the result may be memory loss in the control module when the alternator acts up. Have the 0622 fixed, erase the codes, and see if the 0601 returns. That is what I would do, anyway.

Apr 28, 2013 | 2001 Dodge Dakota

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P0601 what does that mean


code p0601=Internal Control Module Memory Check Sum Error
did you replace the parts with the same size engine and trans.
it sounds like the computer isn't recognizing them,
or the computer is faulty

Jun 18, 2011 | BMW 330 Cars & Trucks

2 Answers

Giving code 601


Internal module check sum error You will probably need to replace your ECM It should cost around $100-$150 at autozone or oreillys

May 18, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

Recently my check engine light came on and I did a diagnostic to find a P0607 error to appear. The code had read something about a power train control module. I will probably end up taking my car into the...


P0601 Internal Control Module Memory Check Sum Error
P0602 Control Module Programming Error
P0603 Internal Control Module Keep Alive Memory (KAM) Error
P0604 Internal Control Module Random Access Memory (RAM) Error
P0605 Internal Control Module Read Only Memory (ROM) Error
P0606 ECM/PCM Processor
P0607 Control Module Performance
P0608 Control Module VSS Output "A"
P0609 Control Module VSS Output "B"
P0610 Control Module Vehicle Options Error
The p0607 error says Control Module Performance. It has something to do with the Control Module for the powertrain as you indicated. But, you may be able to take your car to a transmission shop to alleviate the problem using a transmission expert.

I don't think that it doesn't have anything to do with the engine, itself, even though it's listed under a driveability related code.

Good luck on this repair.

Jan 14, 2011 | 2002 Dodge Stratus

2 Answers

Where is the internal control module at on a 2002 dodge neon code # P0601


Internal Control Module Memory Check Sum Error,
check with a dealer for any technical service bulletins from chrysler, you might have to have the computer reprogrammed rather then replaced

Dec 03, 2009 | 2002 Dodge Neon

1 Answer

2006 trailblazer i6 engine has the trouble code Po601 does anyone know what it means? .. i think its the P.C.M. but im not sure. thanks


It's a very strange code. It shows up in the generic "all manufacturer" code list as "P0601 Internal Control Module Memory Check Sum Error"
Here's a complete list and you can see the GM specific codes on that site as well.

http://www.engine-light-help.com/generic-check-engine-light-codes.html

Aug 12, 2009 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

Internal control module memory check sum error came up .


the Powertrain Control Module is defective, nothing else will cause this code, you need a rebuilt PCM.

Jun 17, 2009 | 2001 Jeep Grand Cherokee

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