mdurby

yes it is a obd2 scanner, just assumed they were the same letters. I am trying to do the test from the article but I'm not having any luck. I can read the codes, P1698 but I cannot erase them. Step 4 with the harness pcm connectors disconnected and a jumper wire from terminal No.30 connector 3 to ground my OBD2 scanner will not connect/ communicate. Are there any other options to check the wires?

I have not. my code scanner, i think is a DRBII. I pulled the wires going to the PCM and removed negative wires on both batteries hoping for something simple, but that did not fix it. I don't have much 12v electrical experience

I was driving my truck this morning and all the gauges stopped working and warning lights came on and no bus displayed in the odometer. I hooked up my code reader and it says P1698 no bus message from transmission control module. my code reader will not erase the codes. Has anyone had experience with this. Also wondering if it is okay to drive in this condition. I checked the connections going to the pcm and everything looks fine.

My code scanners shows the codes coming from the $15 module. I think that the other module is labeled $1. So I am wondering which one is the ECM and which is the PCM? Is it possible or probable that the batteries or terminals are connected to the problem? I have not had any problems starting the truck but I have noticed more corrosion. --- Update to the previous post... I have 172k on my truck. Any recommendations for getting a replacement ECM?

I am having dead pedal issues with my truck. I keep getting he same 4 codes p0113, p0121,p123,p0606. i tried a new apps and it did not fix the problem. I am thinking about replacing the ecm. Wondering if that would be a wise next step. One other note the battery terminals have started to corrode. both batteries are original from 2001 but seem to be holding their charge. I replaced the bolts and nuts on the three terminals that had the corrosion only to find one of them very corroded after a couple of days sitting parked. I am not sure if this is connected to the codes or not. any suggestions would be appreciated.thanks Mopar1973Man for your last response.I am also wondering if the codes are coming from $15 module is that the ecm or the pcm?thanks

could you direct me to the ecm REMOVAL, OVERHAUL &INSTALLATION article