Need regen help; Lowell, Ind.
anybody near,us2 at i65,south of crown point
I just got the dreaded,''12 miles to 4mph,
stopped at a gmc dealer and they couldn't force a regen
codes are #1 def tank heater circuit open,
they want $250 to put in 2 thermostats ,then $800 to put in a DEF tank [that GM warrenty'd,last year]
I think if I can use a ''tech2 scanner'',i could do it and make it to a buddys shop at Rockford,il.,and put in a DEF tank ,if need be
anybody near here?
I got a motel,so if I could fix/clear things sat morning,i could be gone
this should only take 30mins-1 hour
dmax3500 I put up an announcement to help draw some attention to your need.
Please keep us updated on your situation
I think if I can get into the ''glow plug controller and cycle the reactant heater circuits,i can ''kill'' the limp-mode and at least drive it an other 200-300 miles
so and mac-snapon diagnostic tool might do it too
I'm just rolling through the Brickyard.You get operational yet?I do have the Snap On Pocket iQ heavy duty in the truck here.
I just got to my buddys shop
I need to ck a few things and will post more info in the morning,its beddy-by time now
thanks to everybody
I moved your post over to the LML section for continued follow-up.
Just had def heater repl'd under warranty, error code dtcp21dd, open circuit, gm has kit that includes sensor, kit contains reductant heater and level sensor assy, this is a no charge fix, seems these fail across Chevy and gmc platforms
well it needs to go to the dealer wed
both redactant tank heater codes
the 4mph limit on dash is a ''tamper-code/fault'',IT CAN BE RESET ONLY WITH A ''TECH2/MDI'' scanner,
the partial reset is
1.in redactant tree,you need to ck for pressure/leaks
2.completely fill def tank,and reset level too 100%
3.go into ''glow plug module'' ,and turn on all 3 heaters ,1 at a time for 10 secs
4.clear any codes
my def/redactant tank and heater were replaced last year under warrenty ,,now it needs to go back in wed to see if they can do it again
I think the def fluid is so corrosive its killing the heater element and wiring
this 4mph thing is pure GOV crap,if it happened on the hwy you would be dead
im so sick of us trying to save the planet,this is just EPA/Obama crap,,
this tank heater replacement is covered under a spl service bulletin #14652b,or n16202940
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