Last post on May 31, 2013 at 6:16 PM
You are in the Dodge Ram-2010 and older
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Dodge Ram Pickup 1500, Dodge Ram Pickup 3500, Dodge Ram Pickup 1500 SRT-10, Truck
#200 of 321 Check Engine Light/Code Question
Dec 14, 2009 (9:56 pm)
We have a 1997 Dodge Ram 2500 V8 Gas and the Check Engine light came yesterday. When I did the On/off/on/off/on test it flashed 12 - 31 - 55.
Does anyone know what code 31 is?
I found another site for Dodge Neon that said Code 31 was the "Evap purge flow monitor failure or evap solenoid circuit", but I am not sure if Dodge uses the same codes for all their vehicles.
Any help would be appreciated.
#201 of 321 Re: Check Engine Light/Code Question [hailofaguy]
Dec 15, 2009 (4:56 am)
Do a google search for Dodge Computer Codes and you'll find several places that gives you this. Here is one:
Hope this helps.
#202 of 321 Re: Check Engine Light/Code Question [hailofaguy]
Dec 15, 2009 (6:11 am)
Code 12 means that the battery was disconnected within the last 50 starts. This is normal if battery was disconnected. If not have the battery tested and check both cables.
Code 31 refers to evap solenoid circuit. Check for loose, broken, or shorted wires in the charcoal cannister solenoid wiring and connectors.
Code 55 means end of message
#203 of 321 Re: How do you get codes for 1999 Dodge Ram [corkscrew]
Dec 17, 2009 (7:41 am)
Thank you Corkscrew, I had Pep Boys pull the codes and they found two, P0125 which is a closed loop temp not reached, and P1693 which I was told was just a general fault. Since the engine light has come on, my temp gauge has not moved off of 140. Do you think this is a stuck open thermostat or is it a temp sensor? I would think that if the thermostat is stuck open the temp would still come up off 140 after several miles and it is not.
#204 of 321 Re: How do you get codes for 1999 Dodge Ram [cabover30]
Dec 17, 2009 (7:50 am)
Feel your top radiator hose...if it is hot, your thermostat is opening. Better yet, have Pep Boys/autozone/etc shoot top and bottom hose with a temp gun and see if they are somewhat close in temp.
#205 of 321 Re: Check Engine Light/Code Question [corkscrew]
Dec 17, 2009 (9:19 am)
Canister and wires all look fine so we took it into the dealership and they hooked it up to the scanner for free. The code showed P0441 Evaporative Emission Control System Incorrect Purge Flow. Doing the ignition on/off test showed code 31 which seems to point to the same thing. Either way they felt it was the purge solenoid on top of the engine. Part is ordered, well see if that fixes it when it comes in.
Thanks for the advice.
#207 of 321 Re: How do you get codes for 1999 Dodge Ram [corkscrew]
Dec 19, 2009 (9:35 am)
Thank you again corkscrew. I replaced the thermostat yesterday but my temp gauge is still stuck at 140. I think it must be the temp sensor. Is the temp sensor located right next to the thermostat? I see an electronic device that screws into the block right there.
Also, after I get this problem fixed, will the check engine light automatically go off or will I need to have it reset?
#208 of 321 Re: How do you get codes for 1999 Dodge Ram [cabover30]
Dec 20, 2009 (5:33 am)
That "electronic device" you refer to is both the sensor and sender.After you replace it I would have it reset and see if code P1693 goes away as well.
#209 of 321 Crap Truck
Jan 09, 2010 (11:42 am)
I have an '02 dodge ram 1500 2wd, standard tran. I had it in to get some rear end work done and when I picked it up and drove away the speedometer stopped working, the ABS light came on, the ebrake light, and it kept stalling. So I took it back and my speed sensor was shot. So they replaced that, thought everything was ok, then all of a sudden the lights came back on the speedometer works but it bounces between speeds irratically, and my check engine light came on. The only thing it solved was the stalling. They said I had to reset my computer but they didn't know how? Does anyone have any suggestions?