Service Transmission Continue in D. Do Not Shift or Turn Engine Off

[jaybirdtig]

2020 JLUSD

After multiple CELs for
Electronic Stability Control
Electronic Throttle Control
Automatic Cruise Control

it seems to happen while in cruise at highway speed over small bumps like when going over a bridge from asphalt to concrete as far as I can tell.

But the transmission message is scary.
Currently at a Jeep dealer
Anyone have any advice?

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[Dan M.]

CHeck to make sure all the fuses are properly seated. It is a common issue for them to come from the factory not fully pressed down.

 

[jaybirdtig]

Repaired, ?

“CUSTOMER HAS NUMEROUS ELECTRICAL ISSUES AND CODES ON
VEHICLE. WILL BE SUPPLYING LIST OF CODES FROM VISIT ON
TUESDAY THE 12TH. WAS IN TO HAVE CODES CHECKED.
U0101-00-LOST COMMUNICATION WITH TCM
vehicle was dead on arrival, charged battery and checked
dtes, found loss of communication with the tcm, found that
the tem fuse was blown, installed new fuse and found vehicle
was communicating again with the cm, checked wiring diagran
to check for short in the wiring on the power side, found
star case S2108000014 that states to check wiring going to
the transmission for a rub through on the dpf exhaust flange
gasket, found 3 wires rubbed through above the dpf
repaired the 3 wires that were rubbing through and
repositioned wiring harness to prevent further rubbing of
the wiring harness, cleared dtes and drove vehicle 96 miles
to verify
dtes did not return at this time
0894TKF3 Engine/Transmission/Powertrain Control Module
Test and Repair”

 

[DaltonGang]

Did the JK's have this many fuse issues?? Or, are we just lucky that way??

 

[Bob Burd]

This wasn't a fuse issue, but a wire shorting problem. The fuse did its job.

 

[jaybirdtig]

This wasn't a fuse issue, but a wire shorting problem. The fuse did its job.

yep. And thankfully it blew or they would have sent me home again saying there’s nothing wrong and there’s no data saved to indicate otherwise despite the 7 CELs I got on one trip and the prognosis “It fixed itself” and make a big deal out of doing a manual regen when the soot level was 51% like that fixed something. When it automatically does it itself at 80%.

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