Question about 2001 Jeep Grand Cherokee

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Internal control module memory check sum error came up .

Mechanically no problems. just engine light is on . code p0601 comes up when scanned.

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

Posted on Jun 17, 2009

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1 Answer

Code P0601


code p0601 refers to engine control module (ECM)--memory check sum error==causes--- ECM
check with a replacement unit that is known to be good.

Oct 01, 2015 | Chevrolet Cars & Trucks

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Car shuts off while driving and says starting disabled Service throttle. Please Help! Check engine code says P0601


Definition of Diagnostic Trouble Code P0601 Category: Powertrain Definition: Internal Control Module Memory Check Sum ErrorNote: This definition of P0601 is applied to all manufacturers

Jun 18, 2015 | Cars & Trucks

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What is a PCM


P0601 Internal Control Module Memory Check Sum Error
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pp2000 lexia 3

Dec 18, 2012 | 2003 Chevrolet TrailBlazer

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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

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

1 Answer

Engine light is on. Runs fine. Getting a P0601 "Internal control module memory check sum error" What could cause this?


P0601 - Internal Control Module Memory Check Sum Error

Basically that means that there is an interal fault in the Powertrain Control Module (PCM). There have been many reported PCM failures on Chrysler/Dodge products although it is possible for this to happen on any vehicle. In Dodge/Chrysler products, a P0601 trouble code means that a serial communication failed inside the computer at least 6 times.

Symptoms: Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light. Typically the engine runs fine, gauges work, etc.

Causes: A code P0601 in most cases means the PCM has gone bad. This is possibly due to a short-circuit inside the PCM. Or, if you disconnect the wires/connector from the PCM while the battery is still connected, that may also cause this code.

Possible Solutions: With a P0601 OBD-II trouble code, the most common fix is to replace and reprogram the PCM. In a few cases the dealer may be able to reflash the PCM and get it working. But more than likely the PCM will need to be replaced and reprogrammed (we recommend you take it to a dealership for this). The good news is it *may* be covered under your emmissions warranty. So even if you're out of bumper-to-bumper warranty or powertrain warranty, check your warranty guide or dealer to see if this is covered.

Other people have reported that they cleared the code only for it to return again and again. Keep in mind that most shops can replace the PCM but not all can program it.


Hope this helps to solve it (remember to rate this answer).

Jan 05, 2011 | Dodge Ram 1500 Cars & Trucks

1 Answer

I have a 2001 chrysler concorde that has had engine replaced transmission replaced and wont start it reads a code p0601


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

Dec 03, 2009 | 2001 Chrysler Concorde

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

I HAVE A 2001 DODGE STRATUS AND THESE TWO CODES ARE SHOWING UP ON THE DASH BOARD. P0601 AND P1684. CAN YOU TELL ME WHAT THEY ARE AND HOW TO FIX THEM?


P0601 Internal Control Module Memory Check Sum Error P0684 Glow Plug Control Module to PCM Communication Circuit Range/Performance

Jun 09, 2009 | 2002 Jeep Grand Cherokee

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