Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
CHRYSLER
Reported code forms U0121-00
Flash: Anti-Lock Brakes (ABS) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Code (DTC): ●…
CHRYSLER
Reported code forms U0121-00
Flash: Anti-Lock Brakes (ABS) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ●…
JEEP
Reported code forms U0121-00
Not applicable to vehicles built for US market. Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the…
CHRYSLER
Reported code forms U0121 U0121-00
Vehicle Will Not Shift From Park. Antilock Brake System (ABS) Light On In Cluster. U0121, U1110, U120C Diagnostic Trouble Codes (DTCs) Set. Discussion: If a vehicle has a complaint of will not shift from park and the…
FORD
Reported code forms U0121
This article supersedes TSB 21-2405 to update the production fix date. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: * Illuminated powertrain malfunction indicator…
AUDI
Reported code forms U012100
This bulletin provide sinformation when the ABS/ESC Control unit cannot be reached; DTC U012100 "ABS Control Module no communication."
FORD
Reported code forms U0121:87
Some 2024 F-150 non-Lightning vehicles equipped with minor feature codes C2BAW and FDDAA may exhibit an intermittent Trailer Brake System Fault See Manual message in the instrument panel cluster (IPC), inoperative…
AUDI
Reported code forms U012100
This bulletin provides information when the ABS/ESC control unit cannot be reached "DTC U012100 - ABS Control module no communication" is stored.
AUDI
Reported code forms U012100
This bulletin provides information when the ABS/ESC control unit cannot be reached, DTC U012100, ABS Control Module not communication.
AUDI
Reported code forms U012100
This bulletin provides information when the ABS/ESC Control unit cannot be reached; DTC U012100, ABS Control Module no communication is stored.
MACK
Reported code forms U012100
Mack Chassis - DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information
VOLVO
Reported code forms U012100
Volvo Chassis - DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information
MACK
Reported code forms U012100
DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information.
VOLVO
Reported code forms U012100
DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information
FORD
Reported code forms U0121
Some 2021 Mustang Mach-E vehicles built on or before 09-Sep-2021 may exhibit an illuminated powertrain malfunction indicator (wrench) lamp and/or display the message Shift System Fault Service required with DTC…
VOLVO
Reported code forms U012100
DTC U012100 - Poor Connection At The X209 Ground Junction
MACK
Reported code forms U012100
DTC U012100 - Poor Connection At The X209 Ground Junction
RAM
Reported code forms U0121-00
Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…
RAM
Reported code forms U0121-00
Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…
CHEVROLET, GMC
Reported code forms U0121
This Preliminary information communicates an issue with the engine wiring harness shorting at the left front cylinder head causing any of the following issues: - IPC gauges sweeping while driving - Several IPC warning…
CHEVROLET
Reported code forms U0121
This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) illuminated, intermittent service messages, Erratic Gauges and technician finding DTCs U0073, U0121,…
CHEVROLET, GMC
Reported code forms U0121
This Preliminary Information communication provides information to the technician that vehicles may have an Antilock Braking System or Malfunction Indicator Lamp illuminated. Also Low Brake Fluid lamp on with the master…
CHEVROLET, GMC
Reported code forms U0121
This Preliminary information communicates an issue with the engine wiring harness shorting at the left front cylinder head causing any of the following issues: - IPC gauges sweeping while driving - Several IPC warning…
CHEVROLET
Reported code forms U0121
This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) illuminated, intermittent service messages, Erratic Gauges and technician finding DTCs U0073, U0121,…
CHEVROLET, GMC
Reported code forms u0121
This Preliminary information communicates an issue with the engine wiring harness shorting at the left front cylinder head causing any of the following issues: - IPC gauges sweeping while driving - Several IPC warning…
CADILLAC, CHEVROLET, GMC
Reported code forms U0121
This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and…
CHEVROLET
Reported code forms U0121
This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) illuminated, intermittent service messages, and technician finding DTC?s U0073, U0121, U0100 and/or…
CHEVROLET
Reported code forms U0121
This Preliminary Information communication provides information to the technician about vehicles that have multiple Instrument Panel Cluster warning indicators on and/or warning messages being displayed on the Driver…
CHEVROLET, GMC
Reported code forms U0121
This Preliminary Information communication provides information to the technician that vehicles may have an Antilock Braking System or Malfunction Indicator Lamp illuminated. Also Low Brake Fluid lamp on with the master…
CHEVROLET, GMC
Reported code forms U0121
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp, service Antilock Braking System, Service Stabilitrak, Service…