We just purchased a used 2006 Commander Limited. I has about 6 months of warranty left. I haven't taken to the dealer yet. I wanted to do a little research before talking with the sevice department. I am an automotive mechanic from the 80's and know a little about todays technology (CAN OBDII).
When I picked up the Commander, there was no issues with the "check engine" light. We tried the remote start after getting home and the next time we drove the car, I noticed the "check engine" light was on (code U1411 - "Implausible fuel volume signal". After a few drive cycles the light went out. Tried the remote start the next day, and low and behold, the lights back on. I reset it manually. Next remote start, back on. See the pattern here?? I think it might occur when the ignition switch is turned to "on" after entering the car. I need to really analize the time the code is set vs. run time.
Has anyone out there experienced this issue and successfully had it fixed?
If so, what was the fix?
I am afraid this could turn into a real run around. Thanks, Jerry (smblk)
That's a great question. I would presume that you are correct in your diagnosis, and also even more correct in that you will get the run around if you go to the dealer. As far as what to do, I don't have a clue. Is their an ACC wire from the remote start to the ignition? Maybe it is loose, that would be my best guess.
2006 Commander Limited, 5.7L V8, QD II, Dark Khaki, Mopar Performance CAI/Exhaust
I did a little more trouble shooting. I noticed that none of the instrument cluster is operative after a remote start. The instruments do not become active until the key is inserted and selected to the on position. This would account for the "implausible fuel volume" code u1411 (no fuel volume with engine running). Any ideas out there. I wish I had the install instructions for this unit.
Do you have a remote start system ? And if so, did it happen when you used the remote start ?
2006 Steel Blue 5.7L HEMI Limited 4x4 Build Date: June 9, 2006 Hour 14
Interior: Dark Slate/Light Graystone with Saddle Brown Leather Seats
Quadra-Drive II, NAV, DVD, Trailer Tow Group IV, Off-Road Group II, Remote Start, UConnect, Rear Backup
Camera, Chrome Wheels, Magnaflow cat-back exhaust, Daytime Running Lights enabled
For a complete wiring diagram Refer to Section 8W.
The fuel volume message the PCM is receiving is implausible. The circuit is continuously monitored. One Trip fault.
CAN B OPEN OR SHORTED
FRONT CONTROL MODULE (FCM)
POWERTRAIN CONTROL MODULE (PCM)
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) .
Theory of Operation
The Front Control Module isn't receiving a fuel volume signal over CAN B from the Cluster Module. The FCM has to send the PCM a fuel volume signal over CAN C. The signal the FCM sends over CAN C is implausible.
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