Dears

i have a problem on my parking sensors, it give continuos sound when i enable it i think one of the sensor hang or damaged. i went to a shop to scan my ECM and found some errors P1212, U1001, U0101 and U1000. i reset it but its keeps coming.

what u think the problem with this errors and how to reset it
how can i know which parking sensor is affected

my car is G37 sedan 2009 journey. it is working fine with battery issue or CEL.

 

any ideas

 

Those codes are all CAN communications issues.
Either the ECM is toast, or you cut some wires, or a connector loose.

 

Thanks for replaying

how to solve this issue. i didn't touch any wiring of my car

 

Is this a US spec car?

If it's not replace any LED bulbs you have upgraded, back to stock.
Disconnect any HID replacement, and return to stock.
Then scan, and see if the codes disappear.

If this works, Ill then explain.

 

it is not US Spec.
i installed LED bulbs on license plate lights and all of interior of my G37 also i have original HID only.

 

Why change the led back to stock? What will it do?

 

Restore the correct/proper voltages, signals, and wave forms that the ECM is programmed to look for..
Read the FSM

 

Ok I understand completely thanks this was so much help!👍🏾 As I’m having a issue with the fuse blowing and it didn’t happen until I changed my battery. Codes p010c and u0101 after a water pump was changed but my battery went bad at the same time I checked all the grounds but no check engine light yet but codes are stored.

 

Oh my god. Why does it smell like death in here?