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-   -   U1411 Trouble Code Help (http://www.jeepgarage.org/f77/u1411-trouble-code-help-27343.html)

CarAudioMechanik 08-19-2011 05:47 PM

U1411 Trouble Code Help
 
Little background, 3.7 V6, 300 amp alt, 66k miles and jet chip. Also the CEL is on solid. I would like to see if any one else has any ideas?

Scottina06 08-19-2011 06:30 PM

Re: U1411 Trouble Code Help
 
Implausible Fuel Volume Signal Received


Possible Causes

CAN B OPEN OR SHORTED

CLUSTER MODULE

FRONT CONTROL MODULE

PCM

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.

robpp 08-19-2011 07:10 PM

Re: U1411 Trouble Code Help
 
check the 2 big plugs down low on the drivers side firewall. check both sides make sure in and good and tight

thats a communication error. could be anything. are there MORE codes?

CarAudioMechanik 08-19-2011 07:18 PM

Re: U1411 Trouble Code Help
 
Quote:

Originally Posted by robpp (Post 469424)
check the 2 big plugs down low on the drivers side firewall. check both sides make sure in and good and tight

thats a communication error. could be anything. are there MORE codes?

No other codes were thrown according to autozone's scanner.



Well now after letting the WK sit after coming home from work & autozone. I made a trip for some fast food and the CEL is gone. IDK WTF to make of this!


Thanks for the insight so far, Rob and Scott.

Chaoul1 08-19-2011 07:44 PM

Re: U1411 Trouble Code Help
 
Unplug battery for 30 Seconds and press on the Brake while the battery is unplug. Then plug the battery back on.

Scottina06 08-19-2011 09:35 PM

Re: U1411 Trouble Code Help
 
do you have a remote start? Thats the culprit a lot of times and it just comes and goes

2005JGC 08-20-2011 01:19 AM

Re: U1411 Trouble Code Help
 
There are some starcases on U1411 reguarding Junction block failure, either internal or external causes (inspection of connectors for contamination, water intrusion...) Ultimately without it being a constant problem this could be REALLY tough to narrow down the concern. A common suggestion for repair amungst the star cases was the junction block... NOT SAYING THATS IT ;)

Also suggested in one of the cases as Scott suggested, proper (or improper) installation of the remote start (mopar kit) It didnt really specify what a common improper installation that would cause this is, it just mentioned it.

CarAudioMechanik 08-20-2011 02:25 AM

Re: U1411 Trouble Code Help
 
Quote:

Originally Posted by Scottina06 (Post 469476)
do you have a remote start? Thats the culprit a lot of times and it just comes and goes

I don't have a remote start, however I do have an Clifford Alarm that I use on a daily basis.


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