Question about 2005 Chrysler 300

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05 chrysler 300 code u1120 and u0121

CODE U1120 AND U0121

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Both of these have to do with the ABS system. U codes are lost communications codes from computers. Sometimes they are the wires. When you have different computers not communicating. Since yours are both from the ABS, I suspect the ABS module has died. Still could be the wire though (not likely). Check the wire for resistance. if good( less than 5 ohms) then the module has died. When you have ABS system malfunctions, the brakes revert back to the old system. Meaning if you hit the brakes to hard, they could lock the tires and have a skidding effect. BUT the brakes still work, they will stop the vehicle. Basically it is your call to have them fixed.

Posted on Nov 09, 2014

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Posted on Jan 02, 2017

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Whats the answer for U1120 engine diagnostic on 2008 Chrysler Aspen?


Lizzie, U1120 means the PCM doesn't receive a vehicle speed signal from the Anti-lock brake Module over the CAN C bus. You may have to have a good tech. diagnose and estimate repair. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
U1120 Engine Diagnostic Code For 2008 Chrysler Aspen
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What U1411 code means?


U1411 Implausible Fuel Volume Signal ReceivedPossible Causes Setting Conditions
CAN 'C' Bus circuit is open or shorted to ground
Cluster module has failed
FCM has failed
PCM has failed
Key on or engine running; and the PCM determined that the Fuel Volume signal it received was implausible.
This code sets in 1 Trip(s).
This code will turn on the MIL (Malfunction Indicator Lamp) Vehicle Application: 2005 Jeep Grand Cherokee Laredo 4.7L, Vin N, Eng Cfg V8

Customer Concern: Has 11 codes. U0101, U110C, U0121, P0480, U1120, U0103, U1411, U110E, P000B, U0100, U0002. At this time there is a no crank condition.
Tests/Procedures: 1. Clear the codes and see what comes back. These are all communication codes.
2. Disconnect the modules one at a time when it is acting up and see when the communication comes back.
Potential Causes: Controller Area Network (CAN) C Module

Tech Tips: On this vehicle it turned out the Occupant Restraint Controller (ORC) which is on the Controller Area Network (CAN) B bus was actually causing the problem. It was also taking down the Controller Area Network (CAN) C bus at times. I hope this helps.

Apr 01, 2015 | 2006 Jeep Liberty

1 Answer

I got the cables switched when I jumped my 2006 chrysler 300 touring. The transmission is stuck in a low gear, the speedometer doesn't work, the power windows don't work, the abs light is on, the brak


Google the codes for your vehicle

Lost communication with the pcm,buss & other modules

Check all your fuses,fusible links & any ties bars in or under
the fuse & distribution boxes

Would help to have a factory wiring diagram for your testing

Sep 30, 2014 | 2006 Chrysler 300 Touring

1 Answer

How do i fix a u1120 code?


The Powertrain Control Module (PCM) doesn't receive a wheel distance message from the Anti-lock brake Module or FCM (NON-ABS) over the CAN C bus. One trip fault.

Aug 06, 2014 | 2005 Dodge Durango

1 Answer

What does code "u1120" and "u0121" mean?


P0121
Throttle Position Sensor/Switch A Circuit Range/
Performance Problem. P1120 Throttle position sensor out of range
P1121. clean throttle body out good, this may fix problem. if not replace or adjust throttle position sensor. Good-Day!

May 17, 2014 | 2005 Dodge Dakota Quad

1 Answer

2006 Chrysler 300, obd code u1120


U1120 means the PCM doesn't receive a vehicle speed signal from the Anti-lock brake Module over the CAN C bus. This can be caused by the ABS module, PCM or something wrong with the can bus. This might be just an erroneous code and may never set again.

Nov 24, 2013 | 2005 Chrysler 300

1 Answer

On my car the check engene light went on I took it to auto zone they use small scanner they gave us this code that we want to know what it is u1120 they cound't find it on their computer,


Good Evening, the u1120 is a dealer specific code and like the calibers and such it is a lost wheel distance code. Hope that helps.
Thanks,
Joey

Sep 10, 2010 | Dodge Durango Cars & Trucks

1 Answer

Emission test found some trouble codes


U0121 Communication error to ABS HU/CM

Apr 06, 2009 | 2005 Mazda 6

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