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U1110 and u0121 error codes

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  #1  
Old 09-19-2017, 01:33 PM
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Default U1110 and u0121 error codes

What do these codes mean on dodge challenger sxt 2013? 98937 mileage
 
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Old 09-19-2017, 02:33 PM
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You posted in the Intrepid section. Moved to the Challenger section.

U1110-LOST VEHICLE SPEED MESSAGE
When Monitored: With the ignition on, battery voltage between 9 and 16 volts, and engine run time greater than 3 seconds.
Set Condition: The PCM either doesn't receive a bus message or receives an implausible bus message from the Anti-Lock Brake Module.
Possible Causes
CAN C BUS OPEN OR SHORTED CONDITION
NO POWER TO ANTI-LOCK BRAKE MODULE — MODULE UNPLUGGED OR OPEN FUSE
POWERTRAIN CONTROL MODULE (PCM)


https://www.obd-codes.com/u0121
 

Last edited by jkeaton; 09-19-2017 at 02:36 PM.
  #3  
Old 11-06-2017, 07:38 AM
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Default Shifting problems

Can someone explain what a Can c bus is or where to find it. My dodge doesn't shift to 3 and higher. Changed the abs sensor speedsensors in and out, checked all fuses and changed transmission fluid and filter. Code says u1110

thanks in advance
 
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Old 11-06-2017, 10:08 AM
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can bus is just the communications protocol the various electronics use to talk to each other. u1110 is telling you the PCM is not getting a speed reading from the anti-lock brake module. Does your speedometer work?
 
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Old 11-06-2017, 11:30 AM
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Default Shifting problems

First it didn't.. but after checking the fuses, I found one missing, one with the much amp and one who was broken.
speedometer and odometer are working just fine now.
I changed the abs sensor and both speedosensors on the gearbox at driversside. It has a new filter and enough (and not to much) transmission fluid.
I got it from an online auction and had it shipped to Bonaire where I live. First and last time I'll ever do that again. Had shifting problems from the first moment. Got a new transmission and changed it, still dose problems. Maybe a defect in the pcm??
 
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Old 11-06-2017, 03:33 PM
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Need to be able to hook a scanner to it, and see what the PCM thinks is going on. If it isn't getting good data for speed from all and sundry sensors, it is gonna be confused as to how to run the trans, etc.
 
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Old 11-06-2017, 07:44 PM
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Default Shifting problems

Ok, let me check if there is power going to the abs sensor to make sure that's not the problem.
I'll go then to the mecanic to hook him on the computer and see what comes out.
thanks so far
 




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