PCM P0601 Smog Check fail issue

20

Asked by Apr 10, 2016 at 07:42 PM about the 2003 Dodge Grand Caravan

Question type: Maintenance & Repair

My Dodge Caravan won't pass smog because of code "P0601 Internal Control
Module Memory Checksum Error". I took it to a mechanic and it was going to
cost more than 1000 for a new PCM from the manufacturer (they said they
couldn't find a used one otherwise). Is the PCM something relatively easy to
replace if I buy and order the part online? I've taken apart laptops and installed
memory/airport cards before, so I'm not horrible with mechanical issues if I
have directions (especially if it's a plug and play sort of setup). Any insight
would be great.

8 Answers

72,265

It is easy to replace, it is a plug in and play as you say, but you have to make sure you have the right one for your vehicle.....P0601 DODGE - Power Control Module Internal Fault... Possible causes - Faulty Powertrain Control Module (PCM) - Powertrain Control Module (PCM) harness is open or shorted - Powertrain Control Module (PCM) cicuit poor electricl connection - Low battery voltage... The P0601 is a common code with Dodge vehicles and the most common problem is the PCM. Erasing the codes may temporary fix the problem.... Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) P0601 Dodge Description... There is an internal error in the Powertrain Control Module (PCM) system.

640

Your best bet is to invest in a Haynes manual for your vehicle. It will tell you step by step how to do it!

20

One more question on this. After I install it, is there any standard distance the car should be driven before I try getting it smogged again? I was told to ask my mechanic, but since I'm not going through one I'm somewhat clueless.

72,265

Yes, you should run from a full take down to 1/4 tank of fuel. During this time the PCM runs a full diagnostic on the engine, and if there are any codes present at this time, then they need to be addressed.

20

Is it normal for the check engine light to still be on during the relearning/diagnostic phase? Installed the PCM which was reprogrammed for the car and all is running ok, but light is still on (still running down that tank of gas).

72,265

No. This is a new PCM (computer)? Your check engine light is on? I would want to know what code it is throwing. The cel should not be on.

20

I thought it seemed weird. It's a used PCM that was reprogrammed and is still giving the same P0601 code. It was just suggested that it might be a bad wiring harness since it's still the same problem that I had with the last PCM.

72,265

Looks like you gonna have to start tracing some wires...

Your Answer

Add photo

Related Questions

  • PCM P0601 Smog Check fail issue 8 answers

    My Dodge Caravan won't pass smog because of code "P0601 Internal Control Module Memory Checksum Error". I took it to a mechanic and it was going to cost more than 1000 for a new PCM from the manufac...

    2003 Dodge Grand Caravan

    -

    Maintenance & Repair

  • no pcm ground 2000 Dodge Caravan sport 1 answer

    only chassis ground at aldl connector. no pcm ground at aldl or pcm connector

    2000 Dodge Grand Caravan 4 Dr Sport AWD Passenger Van Extended

    -

    Maintenance & Repair

  • Check engine and motor vibration 3 answers

    I just bought a used Dodge Grand Caravan 2011 with 126 000 km On the third day, while on the road at about 60 km/h, the motor start to vibrate and the check engine light was flashing in synck whith...

    2011 Dodge Grand Caravan Crew

    -

    Maintenance & Repair

  • How do you check / maintain the transmission fluid level in 2012 Dodge Grand Caravan? 2 answers

    There does not appear to be a dipstick to check / maintain the transmission fluid level. Did find a port that says it is a dealer maintenance access. Since I do not go to the dealer for simple mainten...

    2012 Dodge Grand Caravan SE

    -

    Maintenance & Repair

  • Can't find the "Check Engine" (OBD) light on my 2003 Dodge Grand Caravan Sport instrument panel 8 answers

    Hi, I am trying to get my 2003 Dodge Grand Caravan inspected and was told that the "Check Engine" light does not come on when the car first starts, so it will not pass NY state inspection. I hope...

    2003 Dodge Grand Caravan 4 Dr Sport Passenger Van Extended

    -

    Maintenance & Repair

Grand Caravan

Looking for a Used Grand Caravan in your area?

CarGurus has 25,006 nationwide Grand Caravan listings starting at $2,000.

ZIP:

Search Dodge Grand Caravan Questions

Dodge Grand Caravan Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,640
#2 dandyoun
dandyoun
Reputation 840
#3 Dan Connell
Dan Connell
Reputation 580
View All

Related Models For Sale

Used Chrysler Town & Country
230 Great Deals out of 14,457 listings starting at $1,995
Used Honda Odyssey
232 Great Deals out of 19,692 listings starting at $1,495
Used Toyota Sienna
232 Great Deals out of 28,507 listings starting at $2,180
Used Dodge Caravan
596 listings starting at $1,900
Used Kia Sedona
116 Great Deals out of 8,164 listings starting at $1,500
Used Chrysler Pacifica
43 Great Deals out of 27,430 listings starting at $1,500
Used Nissan Quest
60 Great Deals out of 2,629 listings starting at $2,995
Used Dodge Durango
264 Great Deals out of 21,136 listings starting at $1,500
Used Ford Explorer
890 Great Deals out of 64,216 listings starting at $799
Used Chevrolet Tahoe
581 Great Deals out of 32,919 listings starting at $1,500
Used Honda Pilot
404 Great Deals out of 23,416 listings starting at $995
Used Ford F-150
2,121 Great Deals out of 193,348 listings starting at $290
Used Ford Escape
1,277 Great Deals out of 84,686 listings starting at $950

Used Cars For Sale

2017 Dodge Grand Caravan For Sale
34 Great Deals out of 9,696 listings starting at $16,575
2016 Dodge Grand Caravan For Sale
15 Great Deals out of 4,596 listings starting at $9,995
2015 Dodge Grand Caravan For Sale
5 Great Deals out of 1,311 listings starting at $8,995
2014 Dodge Grand Caravan For Sale
7 Great Deals out of 1,686 listings starting at $6,500
2013 Dodge Grand Caravan For Sale
18 Great Deals out of 1,315 listings starting at $5,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.