Question about Chrysler Town and Country

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I have a 2001 Chrysler Town & Country with a 3.8L engine. It is throwing a code P0601 Internal Control Module Memory Check sum error....... What does that mean??

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HI there. Basically, this code is in reference to an internal fault that exists in your Power-train 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 production. In most Dodge/Chrysler vehicles, the P0601 DTC is signaling that a serial communication point has failed inside the computer at least 6 times. This is possibly due to a short-circuit inside the PCM, or if you disconnected the wires/connector(s) from the PCM while the battery is still connected, that may also cause this code, as well. Usually when this code appears during a scan,, the most common fix is to replace and reprogram the PCM. In rare cases, the dealer may be able to recover the PCM, but more than likely, the PCM will need to be replaced and reprogrammed. This may be covered under your emissions warranty, even if you're bumper-to-bumper warranty or power-train warranty has expired. Check your warranty guide or dealer to see if this is covered. It is recommended to have this done by your local dealer, due to the fact that, the new PCM will need to be programmed.

Posted on Aug 02, 2010

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Check Engine light, had it diagnosed, PO601, Internal Controller Failure


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. goodluck
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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).

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