P0601: Internal Control Module Memory Checksum Error

“Tl* the contact owns a 2006 hummer h3. While driving approximately 60 mph, the vehicle shut down, locked up, and did not restart. The check engine indicator illuminated. The vehicle restarted later and was taken to the dealer who was unable to diagnose or duplicate the failure. The vehicle was taken to another dealer where the following codes were run for the check engine warning: c0240, p0106, p0601. The manufacturer was not made aware of the failure. The failure mileage was 130,000.”2006 Hummer H3 · May 2017 · 130,000 mi

“Engine starts and runs, but as soon as I put it into any gear but park, the car immediately dies. It will restart, but again dies when placed in a gear. The check engine light came on so I had my mechanic look at it. He checked for codes and this is the code that came up (p0601). It has 83500 miles. He says it need a new computer. This initially started backing into traffic, the car just quit. I started it back up and went to put it in drive and it again quit. This happens over and over, until someone pushed me out of the street. Car is now parked until it is repaired.”2002 Chrysler PT Cruiser · Jun 2016 · 83,500 mi

“While driving the vehicle at 30 mph, I got a check engine light. The vehicle transmission would not shift to the next higher gear during acceleration. Note: this was also evident by an increase of engine rpm's on the tachometer. This vehicle was purchased new by myself in 2001. It has only 17,508 miles on it!. Checking of the engine fault light revealed a p0601 trouble codei. This is an internal fault in the powertrain control module (pcm). I have seen similar problems noted by other 2001 chrysler 300 m owners, upon conducting a search on the computer. Since this appears to be a common problem for this vehicle, I would like to know why there have not been any recalls! *tr”2001 Chrysler 300M · Aug 2014 · 17,508 mi

“This is a follow-up to odi confirmation number: 10610590 where the vehicle would completely shut off without warning. All powered functions were lost. The display screen would signal: "engine disabled." per the chevy dealer, the problem has been identified as a improper working pcm (powertrain control module), where the following error codes were present: p0601 to p0606 and u2109. Estimated cost to repair, at this point, is $740.00 + tax. For peace of mind and of course, reasons of personal safety, we hope that this is the problem. *js”2006 Chevrolet Malibu Maxx · Jul 2014 · 82,850 mi

“While sitting at a stop light the information panel said reduced engine power as the light turned green. I held up numerous cars as I scanned the obd2 port to clear the code, once again the code read p0601. Cleared it and it started right up. *js”2009 Chevrolet Impala · Aug 2013 · 111,700 mi

“On my commute to work on the interstate my impala shut itself off. I was in the left lane when the car showed the reduced engine power on the information panel, it then fully disengaged all engine power and powersteering. Being in the outside lane I had to maneuver my impala through the heavy traffic and almost caused numerous accidents trying to squeeze to the shoulder. I then coasted off into the grass almost into a large ditch but I slammed on the brakes hard and went into a skid coming to a full stop. I scanned the car with my obd2 scanner, it read p0601. *js”2009 Chevrolet Impala · Aug 2013 · 111,450 mi

“2005 chevrolet colorado 102,000 miles. Vehicle flashes "reduced power" on information display then shuts down engine. Luckily I was able to coast in to a parking lot out of traffic. Engine refuses to start for a couple of minutes then fires up. Has done this a number of times since. Engine code given is p0601 "check sum error", ie computer glitch. This is an unsafe condition, instead of reducing the engine so that one might get out of thraffic, the fact that it kills the engine is a major safeyt risk. Poor programming to say the least.”2005 Chevrolet Colorado · Aug 2013 · 102,000 mi