Jeep Liberty with codes U1120, U1110, and U0121

Question

I have a 2008 Jeep Liberty. Check engine light is on as well as Brake light, ABS light, seat belt light, air bag light and speedometer is not working. Went to Autozone and they hooked it up and got the following codes U1120, U1110 and U0121. I have looked these up but not sure where I should start to fix the problem. My husband and I are both disabled and don't have money to take it to the local dealership. Can you please tell me what to look for first?

Answer 1

U1120 Lost wheel distance message

U1110 Lost vehicle speed message

U0121 Lost communication with anti-lock brake module

Lost communication has alot to do with loss power. without the ABS , the SRS (safety restraint system) would illuminate. When the airbag light is on, this means the airbag system may or may not deploy if ever involved in a accident where airbag system is needed.

This is the TIPM (totally integrated power) alot of the problem with the ABS would begin here, The only way to check the TIPM is with a dealer level scan tool that can read if the TIPM is confiqured correctly. or if needs to be replaced it would need to be reflashed.