Question about 2001 Dodge Caravan
The dealership says I need to replace my PCM but I don't want to spend $650. I can get one for ~$250 and do it myself. But, do you know where it's located? Thanks.
2001 Dodge Caravan died warming up in the driveway last weekend. Turned the key and no engine cranking. Lights on the dash all lit and completed internal diagnostics normally. Keyless entry worked and the battery seemed OK. On closer inspection there was no clicking from the starter that would indicate a weak battery, nor were there any Diagnostic Trouble codes (DTC's) set by the computer (PCM) -I have a scan tool. Checked fuses and relays with volt meter in the realy center next to the PCM. By by following the schematic (using a Haynes manual) I was able to supply battery to the starter (the engine cranked just fine) and the fuel pump (it ran).
On further investigation I determined that the PCM was not supplying ground to the Automatic Shutdown Relay, or the Start relay. As the camshaft sensor and/or the crankshaft sensor can tell the PCM to shutdown, I repalced those two items on a long shot to no avail. Had the car towed to a shop I work with and they came to the same conclusion that I did -- the PCM needed replacement.
Called NAPA and they sold reconditioned units for about $170 (with core return) there was a nationwide backorder on them (Don't know why). Found an online outfit All Computer Resources, that had refurb units. The unit was more expensive, but they programmed the VIN and milage in before shipping. I had the unit overnighted to the shop. It arrived the next morning and I had my fingers crossed. The VIN determines the PIN for the passive security system (SKIS code). But, there were no problems. I picked the car up the next day. So far it's running just fine.
PS: if you pick a unit up from the junk yard you will have to get the VIN programmed in before it will run. It might start, but the security system will shut it down. Hope this helps someone.
Posted on Dec 19, 2009
Testimonial: "sorry for the late response. This worked great. Thanks,"
Yes you can do it. It is located next to the battery, under the Power Distribution Center. You have to remove the battery, then the Power Distribution Center to get to it.
Posted on Oct 08, 2008
Just replaced both the PCM and the TCM on an 01 Caravan. Code P0601 pointed to the PCM and codes P0700 and P0605 to the TCM. I purchased a refurbished PCM from a local business and they reflashed the unit with my VIN and mileage. PCM cost $225 and TCM $200. After replacing these two modules all codes went away. Installation is easy and can easily be done by the DIYers. Worth noting that I drove it for years (and ~50K with the P0601 in the PCM--internal error) and only decided to replace it when the TCM went bad and put the D into limp mode.
Posted on Oct 22, 2009
I have 2001 dodge caravan se 2.4 no crank,no start no communication to pcm ,fuses and relays are okay.
Posted on Aug 27, 2009
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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.
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