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P0601 Diagnostic and Repair Guide for 2001 Chrysler Town & Country

Model: 2001 Chrysler Town & Country Fault Code: P0601 Posted: 2011-05-05 08:50

I've been experiencing a recurring P0601 diagnostic trouble code (DTC) in my 2001 Chrysler Town & Country. Despite replacing the Powertrain Control Module (PCM) twice—each lasting only 26 days and 2 days respectively—the fault returns after reset. The vehicle runs normally under all conditions, but I'm concerned about potential long-term engine or electronic damage. My previous mechanic has suggested that the issue might stem from a missing software update in the PCM unit provided by AutoZone. They believe the replacement units are being programmed with outdated firmware, which could cause instability. However, fuel injectors and all wiring have been thoroughly inspected and found to be in good condition. I'm seeking reliable advice on what steps to take next. Is there a known issue with P0601 codes specifically tied to 2001 Chrysler Town & Country models? Are there alternative PCM suppliers or used PCM options that are more trustworthy? What about the importance of proper programming and voltage stability during installation? Any insights or verified solutions would be greatly appreciated.

Related fault codes
P0601
Comments (7)
Anonymous 2011-05-06 04:54

The P0601 code typically indicates a faulty PCM. It's highly unlikely that AutoZone's PCM units are of sufficient quality to resolve this issue long-term. Please confirm whether your vehicle is equipped with the gray-colored Sentry ignition key or the standard black key, as this affects compatibility and programming requirements.

Anonymous 2011-05-07 21:46

My van has a black key, but I use the all-metal second key. Are there any reputable PCM suppliers besides AutoZone that offer more affordable options than dealerships, which charge up to $750 for a replacement?

Anonymous 2011-05-08 07:02

I recommend looking into used PCMs from trusted sources. For vehicles with black keys (non-SKIM equipped), a used PCM can be successfully installed and will allow the van to start and run properly, as long as it's not part of a SKIM theft system. You'll need to match the PCM part number with your vehicle’s VIN and possibly mileage. A quick search for 'Caravan PCM replacement' on Google should yield more cost-effective and reliable options.

Anonymous 2011-05-11 21:37

I spoke with a dealership, and they confirmed that even when a PCM is programmed using the VIN at AutoZone, it still requires in-van flashing to activate properly. Only dealerships can perform this step, which takes about an hour and costs approximately $100. Does anyone have experience verifying or disputing this requirement?

Anonymous 2011-05-12 05:25

A lack of programming will not trigger the P0601 code. For non-SKIM-equipped vehicles, mileage programming is required to function correctly—but it does not prevent the vehicle from starting or running. The PCM itself remains defective regardless of programming; this issue cannot be resolved by software alone.

Anonymous 2011-05-27 12:25

I had the same P0601 problem. I purchased a PCM from AutoComputerExchange.com, but after installation, the code returned. They advised that voltage fluctuations may cause the fault and recommended replacing the battery and letting the vehicle run for at least 15–30 minutes on its first start to allow proper boot-up of the PCM. I charged my battery overnight and ran the van for an hour before plugging in the new PCM—the code has not reappeared since. I recommend checking your battery health, ensuring all wiring is secure, and allowing a full runtime after installing a new PCM. The unit from AutoComputerExchange cost only $199, and they offered a one-year warranty—plus, I had to return my old PCM for the warranty activation.

Anonymous 2011-05-27 16:33

Thanks for sharing this—it's helpful to know that battery voltage stability and proper warm-up procedures can play a key role in resolving P0601 issues. This could be an overlooked but critical factor when replacing the PCM.