scottladd4
New Member
- Messages
- 2
- Reaction score
- 0
- Points
- 1
This is a long one, which is what brings me here for help.
I have a 2024 Power Wagon 2500, 6.4 with 42xxx miles. Posting here and not the PW section to get a broader audience. Not really a PW specific issue.
I am having issues upon starting with the EVIC spazzing out upon start, taking 1-2 minutes to calm down, then I get CEL and a ton of codes. It all started a few weeks ago 2/5, I went to the quarter carwash and did a normal wash. Drove the truck several miles and stopped at the store, when I came out I started the truck and the dash (EVIC) was flickering all over (truck started just fine). I shut the truck off and opened the door and waited for the "reset". Started the truck back up and the EVIC was fine, just had "service shifter knob" message come up, along with service abs, trailer brake and a few others I cant remember. Upon driving it home, the gear indicator lights never worked (above the shift knob). Got home, let the truck sit and all was fine, except the CEL. I cleared the codes the next day with JSCAN, only code I wrote down was U1110. All is well. Fast forward to the next week (2/10), I go through the drive through car wash, return to work, head out an hour later for lunch. Come out from lunch and all is dead, no crank, no EVIC (only the miles showed on the bottom), start button would not move from "OFF", no ACC or RUN, no radio, nothing. I unhook the ground from the battery and let it sit for a minute, hook batt. back up and try, still nothing. Wait another 5 minutes, unhook the ground again and retry, nothing. Wait another 10 minutes and try to start, get a click and the EVIC having a fit again, wait another few minutes and try again, truck starts but dash is lit up and truck feels like its in limp mode, half power steering, half brake pressure, no speedo or tach. Get it back to work, check codes again with Jscan, get 17 different codes, most lost communication with modules. Cleared codes and let it sit for an hour, everything runs fine, for another week. Stop at the same store on my way home from work, no rain, no car wash, just a dry day in Michigan in the 50's (2/16). Go to start the truck and immediately EVIC is lighting up again but truck starts, wait for it to do its thing, service abs, service esc, service trailer brake control again. I get the truck home and pull the codes again, alot of redundant codes but a few new ones (I'll attach a PDF with the codes listed by event day). This time I get alot of abs codes so I think it has something to do with the abs module or connector. Pull the wheelwell liner out and check everything. No corrosion in the connector to the abs module, harness looks fine, a little dirty due to it's location but nothing out of the ordinary. A lot of the redundant codes have to do with loss of comm. with different modules, ecm, abs, bcm, restraint control, loss of booster signal, loss of comm. with master cyl pressure sensor, implausible vehicle speed signal recd, can bus c1 off performance. Just alot of different modules. Get some info from a family member up the ladder at chrysler and he points me to a harness on the pass side above the wheel well near the pcm (I'm assuming, silver computer looking box on pass side fender). I checked all the connections and harnesses along that side, which the harness being suspect is correct since the harness has pass side abs sensor wires, heads to the t-case, another module on the firewall (atmm module, active tuned mass module) which is part of the can bus system then goes through the firewall.
I still think it is a harness/connecter somewhere, the car wash stuff makes me think it may be a corrosion problem. What boggles my mind is why all the different codes from so many modules all at the same time. If it was water getting in the plug, why not just one wire or one module. With so many modules being affected at once, that acts like a whole plug coming undone. And with it doing it on a dry day concerns me also. After I messed with each plug I made sure to start the truck to see if anything triggered any codes, which it did not.
At this point I think I just dont have enough data to make a determination of a module bad or a harness or a connection. My next adventure is to trace the harness inside. I've heard a few instances on here and some FB pages with windshield or cab lights leaking.
Anyone ever come across anything like this on the 2019+ models? Even though it's a power wagon, I'm sure all these systems are still the same. Posting here and not the PW section to get a broader audience. Not really a PW specific issue.
I have a 2024 Power Wagon 2500, 6.4 with 42xxx miles. Posting here and not the PW section to get a broader audience. Not really a PW specific issue.
I am having issues upon starting with the EVIC spazzing out upon start, taking 1-2 minutes to calm down, then I get CEL and a ton of codes. It all started a few weeks ago 2/5, I went to the quarter carwash and did a normal wash. Drove the truck several miles and stopped at the store, when I came out I started the truck and the dash (EVIC) was flickering all over (truck started just fine). I shut the truck off and opened the door and waited for the "reset". Started the truck back up and the EVIC was fine, just had "service shifter knob" message come up, along with service abs, trailer brake and a few others I cant remember. Upon driving it home, the gear indicator lights never worked (above the shift knob). Got home, let the truck sit and all was fine, except the CEL. I cleared the codes the next day with JSCAN, only code I wrote down was U1110. All is well. Fast forward to the next week (2/10), I go through the drive through car wash, return to work, head out an hour later for lunch. Come out from lunch and all is dead, no crank, no EVIC (only the miles showed on the bottom), start button would not move from "OFF", no ACC or RUN, no radio, nothing. I unhook the ground from the battery and let it sit for a minute, hook batt. back up and try, still nothing. Wait another 5 minutes, unhook the ground again and retry, nothing. Wait another 10 minutes and try to start, get a click and the EVIC having a fit again, wait another few minutes and try again, truck starts but dash is lit up and truck feels like its in limp mode, half power steering, half brake pressure, no speedo or tach. Get it back to work, check codes again with Jscan, get 17 different codes, most lost communication with modules. Cleared codes and let it sit for an hour, everything runs fine, for another week. Stop at the same store on my way home from work, no rain, no car wash, just a dry day in Michigan in the 50's (2/16). Go to start the truck and immediately EVIC is lighting up again but truck starts, wait for it to do its thing, service abs, service esc, service trailer brake control again. I get the truck home and pull the codes again, alot of redundant codes but a few new ones (I'll attach a PDF with the codes listed by event day). This time I get alot of abs codes so I think it has something to do with the abs module or connector. Pull the wheelwell liner out and check everything. No corrosion in the connector to the abs module, harness looks fine, a little dirty due to it's location but nothing out of the ordinary. A lot of the redundant codes have to do with loss of comm. with different modules, ecm, abs, bcm, restraint control, loss of booster signal, loss of comm. with master cyl pressure sensor, implausible vehicle speed signal recd, can bus c1 off performance. Just alot of different modules. Get some info from a family member up the ladder at chrysler and he points me to a harness on the pass side above the wheel well near the pcm (I'm assuming, silver computer looking box on pass side fender). I checked all the connections and harnesses along that side, which the harness being suspect is correct since the harness has pass side abs sensor wires, heads to the t-case, another module on the firewall (atmm module, active tuned mass module) which is part of the can bus system then goes through the firewall.
I still think it is a harness/connecter somewhere, the car wash stuff makes me think it may be a corrosion problem. What boggles my mind is why all the different codes from so many modules all at the same time. If it was water getting in the plug, why not just one wire or one module. With so many modules being affected at once, that acts like a whole plug coming undone. And with it doing it on a dry day concerns me also. After I messed with each plug I made sure to start the truck to see if anything triggered any codes, which it did not.
At this point I think I just dont have enough data to make a determination of a module bad or a harness or a connection. My next adventure is to trace the harness inside. I've heard a few instances on here and some FB pages with windshield or cab lights leaking.
Anyone ever come across anything like this on the 2019+ models? Even though it's a power wagon, I'm sure all these systems are still the same. Posting here and not the PW section to get a broader audience. Not really a PW specific issue.
