U0121 · निर्माता की तकनीकी जानकारी

CHRYSLER · 2026-02-19

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): ● **C151D-00 - Tire Pressure Sensor Location Undetermined.** ● U0121-00 - Lost Communication With Anti-lock Brake System (ABS) Control Module. ● U1110 - Lost Vehicle Speed Message. ● U120C - Lost Brake Booster Signal. Customers may also comment on one or more of the following: ● **The Service TPM System message may display on the cluster after a tire rotation.** NOTE: The vehicle will not automatically relearn tire locations and the process will have to be manually performed by a dealer technician. ● Electronic Parking Brake (EPB) is not responding and not allowing the driver to…

CHRYSLER · 2026-02-05

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): ● U0121-00 - Lost Communication With Anti-lock Brake System (ABS) Control Module. ● U1110 - Lost Vehicle Speed Message. ● U120C - Lost Brake Booster Signal. Customers may also comment one or more of the following: ● The vehicle will not shift out of Park. NOTE: This takes place when the vehicle in on standstill, the driver stays in the car for more than 10 minutes and if the driver presses the Electric Parking Brake (EPB) button. The Electronic Stability Control (ESC) module wakes up in silent mode and if another wake up request occurs (i.e. pedal press, door, ajar etc.)…

JEEP · 2025-09-27

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 following Diagnostic Trouble Codes (DTCs): ● U11E3-00 - TCM Lost Communication With ESM On DPT CAN. ● B15A1-00 - Media Port 1 Connection. ● U11C2 - Lost Transmission Message. ● U11E4-00 - CAN Communication Messages Missing. ● U120C - Lost Brake Booster Signal. ● U1216-00 - Lost Communication With DASM. ● U121E-00 - Lost Communication With Steering Wheel Cruise Control Switch. ● U1267-00 - No Valid Data From ESM On CAN-C Or CAN-DPT. ● U12A8 - Lost Communication With Master Cylinder Pressure Sensor. ● U1465-00 - Implausible Driver Shift Request Signal Received. ● U1466-00-…

CHRYSLER · 2025-05-19

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 below DTCs are set, follow the steps below prior to making any repairs. U0121-00-LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) U1110-LOST VEHICLE SPEED MESSAGE U120C-LOST BRAKE BOOSTER SIGNAL Do not replace the ABS module. First, discuss the circumstances of how they park the vehicle. Ask if they manually apply the electric park brake (EPB) after placing the shifter in park and turning off the ignition. These steps could also be followed with a final step of opening the door, changing ignition status, pressing the brake or pressing the EPB switch again. If the owner…

FORD · 2025-03-13

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 (wrench) lamp and/or "Shift System Fault" message * DTC U0103:87 stored in the secondary on board diagnostic module (SOBDMC) Some vehicles may also exhibit DTCs U0100:00, U0121, U0140, and/or U0155 stored in the gear shift module (GSM). This may be due to the software in the GSM. *****Model section: built on or before 30-Sep-2021

AUDI · 2024-07-31

This bulletin provide sinformation when the ABS/ESC Control unit cannot be reached; DTC U012100 "ABS Control Module no communication."

FORD · 2024-04-24

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 trailer brake controller, and/or diagnostic trouble codes (DTCs) U0131:87, U0140:87, U0100:87 and/or U0121:87 stored in the trailer module (TRM) when installing the trailer brake controller kit ML3Z-19H332-AB. To confirm a vehicle is built with a certain minor feature code, review the build information by double-clicking the vehicle identification number (VIN) in the upper left corner in the Professional Technician System (PTS). Trailer brake controller kit ML3Z-19H332-AB does not include the correct TRM for 2024 F-150 vehicles, and this kit should not be installed on 2024 F-150…

AUDI · 2024-03-28

This bulletin provides information when the ABS/ESC control unit cannot be reached "DTC U012100 - ABS Control module no communication" is stored.

AUDI · 2024-03-22

This bulletin provides information when the ABS/ESC control unit cannot be reached, DTC U012100, ABS Control Module not communication.

AUDI · 2024-02-14

This bulletin provides information when the ABS/ESC Control unit cannot be reached; DTC U012100, ABS Control Module no communication is stored.

MACK · 2022-07-29

Mack Chassis - DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information

VOLVO · 2022-07-22

Volvo Chassis - DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information

MACK · 2022-06-21

DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information.

VOLVO · 2022-06-21

DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information

FORD · 2021-11-17

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 U0103:87 stored in the secondary on board diagnostic module (SOBDMC). Some vehicles may also exhibit DTCs U0100:00, U0121, U0140, and/or U0155 stored in the gear shift module (GSM). This may be due to the software in the GSM. To correct the condition, follow the Service Procedure to reprogram the GSM.

VOLVO · 2021-06-29

DTC U012100 - Poor Connection At The X209 Ground Junction

MACK · 2021-06-29

DTC U012100 - Poor Connection At The X209 Ground Junction

RAM · 2021-03-16

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 investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). P1A26-00 - BPCM Hybrid Battery State Of Charge Performance. P0A7E-00 - Hybrid/EV Battery Pack Over Temperature. U1003-00 - ESP Can C Bus Performance. P2534-00 - Ignition Switch Run/Start Position Circuit Low. P0506 - Idle Speed Performance Lower Than Expected. P0507 - Idle Speed Performance Higher Than Expected. One Trip DTC Changed to a Two Trip DTC.P0AC6-00 - Hybrid/Ev Battery Temperature Sensor 2 Circuit Performance. P0ACB-00 - Hybrid/Ev Battery Temperature Sensor 3 Circuit…

RAM · 2021-03-16

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 investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). P1A26-00 - BPCM Hybrid Battery State Of Charge Performance. P0A7E-00 - Hybrid/EV Battery Pack Over Temperature. U1003-00 - ESP Can C Bus Performance. P2534-00 - Ignition Switch Run/Start Position Circuit Low. P0506 - Idle Speed Performance Lower Than Expected. P0507 - Idle Speed Performance Higher Than Expected. One Trip DTC Changed to a Two Trip DTC.P0AC6-00 - Hybrid/Ev Battery Temperature Sensor 2 Circuit Performance. P0ACB-00 - Hybrid/Ev Battery Temperature Sensor 3 Circuit…

CHEVROLET, GMC · 2020-12-22

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 messages and MIL displayed - Any combination of the following DTC's: U0073 U0100 U0101 U0121 U0128 U0129 U0131 U0140 U0146 U0422 U2413 P0107 P0117 P0119 P0641 C2A07

CHEVROLET · 2020-07-15

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, U0100 and/or U0101 set.

CHEVROLET, GMC · 2020-05-20

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 cylinder fluid level is full or a Service Trailer Brake message on the Driver Information Center. Technician may find codes C0035, C0040, C0045, C0050, C0055, C0267, U0121, U0415 or U0420. Technician will need to inspect the Electronic Brake Control Module connector for water intrusion or corrosion on the terminals. If either is found, replace the EBCM and replace the affected terminals. Also remove the tape from the conduit leading to G400 between the main harness and the ground lug.

CHEVROLET, GMC · 2020-05-07

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 messages and MIL displayed - Any combination of the following DTC's: U0073 U0100 U0101 U0121 U0128 U0129 U0131 U0140 U0146 U0422 U2413 P0107 P0117 P0119 P0641 C2A07

CHEVROLET · 2019-11-12

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, U0100 and/or U0101 set.

CHEVROLET, GMC · 2019-09-30

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 messages and MIL displayed - Any combination of the following DTC's: U0073 U0100 u0101 u0121 u0128 U0129 u0131 U0140 U0146 U0422 U2413 P0107 P0641 C2A07

CADILLAC, CHEVROLET, GMC · 2019-06-14

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 or Loss of communication with EBCM, SWPS, PSCM, and/or SCM. Technician may find Diagnostic Trouble Codes U0077, U0121, U0126, U0131, U0139, U0401, U0415, and/or U0428. Technician should remove the driver and passenger sill plate to gain access to the wire harness. If any open, damaged, or corroded wires should be repaired.

CHEVROLET · 2019-04-04

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 U0101 set.

CHEVROLET · 2019-03-05

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 Information Center. Technician may find Diagnostic Trouble Codes U0073, U0077, U0078, U0121, U0126, U0151, U0155, U0164, U0186, U0415, U0422, and U0428. Technician will need to inspect for a pinch DLC branch in the Instrument Panel harness behind the Instrument Panel Carrier.

CHEVROLET, GMC · 2019-03-04

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 cylinder fluid level is full or a Service Trailer Brake message on the Driver Information Center. Technician may find codes C0035, C0040, C0045, C0050, C0055, C0267, U0121, U0415 or U0420. Technician will need to inspect the Electronic Brake Control Module connector for water intrusion or corrosion on the terminals. If either is found, replace the EBCM and replace the affected terminals. Also remove the tape from the conduit leading to G400 between the main harness and the ground lug.

CHEVROLET, GMC · 2018-11-19

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 All Wheel Drive, Service Suspension Control, or Hard Steering. Technician may find the following Diagnostic Trouble Codes stored C0196, C0186, C0287, C0710, C0045, C0050, C0800, U0077, U0074, U0125, U0126, U0100, U0101, U0121, U0415, U0432, U0121, and or U0140. Technician should inspect X411 connector for damage or corrosion. Technician will replace any terminals with damage or corrosion.