U0100 · Материалы производителя

MAZDA · 2026-09-29

DESCRIPTION Some CX-70 and CX-90 PHEV vehicles may fail to start (enter READY mode) in cold weather, but the vehicle can often be started successfully on the next attempt. This may occur when leakage current between connector terminals causes the MAIN Relay to be falsely detected as ON. As a result, the Battery ECU may incorrectly determine the relay status, preventing READY mode activation and resulting in a no-start condition. One or more of the following DTCs may be stored: P0AB9, U0100, U0110, and U0115 and multiple warning lights may also turn on. This is caused by corrosion of the connector terminals on the 3002-411 connector in the luggage compartment from water. To eliminate this concern, urethane has been added around the connector to help prevent water from reaching the…

HYUNDAI · 2026-07-03

Certain Palisade Hybrid (LX3 HEV) vehicles may illuminate the Malfunction Indicator Lamp (MIL) and display a false “Check Hybrid System” warning message after use of Bluelink Remote Start following extended parking periods. Related DTCs associated with the MIL include U116087, U016487, U100787, U012987, U010087, U100387, U100287, U010187, and U015587. Technical Service Bulletin (TSB) 26-01-053H provides instructions to perform a Data Communication Unit (DCU) software update to prevent these conditions.

HYUNDAI · 2026-07-02

Certain Palisade Hybrid (LX3 HEV) vehicles may illuminate the Malfunction Indicator Lamp (MIL) and display a false “Check Hybrid System” warning message after use of Bluelink Remote Start following extended parking periods. Related DTCs associated with the MIL include U116087, U016487, U100787, U012987, U010087, U100387, U100287, U010187, and U015587. Technical Service Bulletin (TSB) 26-01-055H provides instructions to perform a Vehicle Platform Controller (VPC) software update to prevent these conditions.

JEEP · 2026-03-03

Trailer Tow Module (TTM) Setting Active DTC U0100-00 – Lost Communication With ECM/PCM

FORD · 2026-02-12

Some 2021-2022 Mustang Mach-E vehicles may exhibit a "Parking Brake Failure, Service Immediately message displayed in the instrument panel cluster (IPC) and diagnostic trouble codes (DTCs) C2007, C2008, C1034, U0293 and/or U0100 stored in the anti-lock brake system (ABS) module. To correct the condition, follow the technical instructions outlined FSA 22P31 (US) or 22B47 (Canada) for an appropriate repair direction.

FORD · 2025-10-28

Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start or intermittent no crank/no start with multiple warning indicators and DTC U0100 stored in the anti-lock brake system (ABS), audio front control module (ACM) and power steering control module (PSCM). This may be due to an incorrectly tightened ground 113 (G113). Inspect G113 for proper connection and tighten to 12 Nm (8.9 ft-lb). If the condition remains after tightening G113, perform normal diagnostics outside of this article. Refer to Workshop Manual, Section 303-06 Starting System. For claiming, use causal part 12A581 and labor operations 12650D and 12650D45WR of the Service Labor Time Standards (SLTS) Manual.

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-…

FORD · 2025-09-15

Some 2023-2025 F-150 vehicles may exhibit a crank/no start with multiple warning indicators and diagnostic trouble code (DTC) U0100 stored in the audio front control module (ACM), gear shift module (GSM), image processing module A (IPMA), power steering control module (PSCM) and instrument panel cluster (IPC). This may be due to an incorrectly tightened ground 104 (G104). Inspect G104 for proper connection, locating tab insertion, and tighten to 8.9 lb-ft (12 Nm). If the condition remains after tightening G104, reference the Workshop Manual (WSM), Section 303-06 outside of this article. For claiming, use causal part 12A581 and labor operations 12650D and 12650D45WR.

FORD · 2025-08-27

Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start or intermittent no crank/no start with multiple warning indicators and DTC U0100 stored in the anti-lock brake system (ABS), audio front control module (ACM) and power steering control module (PSCM). This may be due to an incorrectly tightened ground 113 (G113). Inspect G113 for proper connection and tighten to 12 Nm (8.9 ft-lb). If the condition remains after tightening G113, continue with normal diagnostics. Refer to Workshop Manual, Section 303-06 Starting System outside of this article. For claiming, use causal part 12A581 and labor operations 12650D and 12650D45WD.

FORD · 2025-06-30

Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start with diagnostic trouble code (DTC) U0100 in various modules. This condition may be due to the ground connection at G113. Inspect G113 for proper connection and tighten to 12 +/- 1.8 Nm. If condition remains after tightening G113, continue with normal diagnostics. Refer to Workshop Manual, Section 303-06 Starting System.

INDIAN · 2025-04-28

Indian Motorcycle has developed and released new software updates for the following modules: • Engine Control Module (ECM): – Improved low-speed / low RPM operation with smoother throttle to wheel power transition. – Improved consistency when moving in and out of idle RPM range. – Improved start button functionality to ensure the starter engages in a full start cycle with a single push. • Anti-lock Braking System (ABS): – Improved vehicle speed data collection with a faulted wheel speed sensor for accurate speed information. – Traction control lamp will not be on when traction control is disabled. – Improved fault timeout handling to prevent boot up nuisance faults U1055-87 and U0100-02. • Gateway Control Module (GCM): – Reduction in unnecessary current draw when powered off.

FORD · 2025-04-11

Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) U1027:00 stored in the secondary on-board diagnostic control module C (SOBDMC) and DTCs U211B:08, U0100:00 and U023A:00 stored in the anti-lock brake system (ABS) module. This may be due to the software in the ABS module.

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

SUBARU · 2024-11-14

"This bulletin announces availability of new reprograming files for the Engine Control Module (ECM) developed to remedy the following DTCs: • P0016: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A • P0017: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B • P0018: Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A • P0019: Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor B • P2404: Evap System Leak Detection Pump Sense Circuit Range/Performance • P0011: “A” Camshaft Position - Timing Over-Advanced or System Performance Bank 1 • P0012: “A” Camshaft Position - Timing Over-Advanced or System Performance Bank 2 • U0100: Lost Communication with ECM/PCM “A”"

LEXUS · 2024-11-06

After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087 - Lost Communication with ECM/PCM "A" Missing Message. Upon investigation, it is found that the engine ECU has been damage and needs to be replaced. In several cases, the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the negative (ground) cable clamps are attached on or around the engine ECU or mounting bracket. To prevent this condition from occurring, it is recommended that the jumper cables be attached as described in the owner’s manual.

LEXUS · 2024-10-24

After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087 - Lost Communication with ECM/PCM "A" Missing Message. Upon investigation, it is found that the engine ECU has been damage and needs to be replaced. In several cases, the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the negative (ground) cable clamps are attached on or around the engine ECU or mounting bracket.

SUBARU · 2024-10-08

"This bulletin announces availability of new reprograming files for the Engine Control Module (ECM) developed to remedy the following DTCs: • P0016: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A • P0017: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B • P0018: Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A • P0019: Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor B • P2404: Evap System Leak Detection Pump Sense Circuit Range/Performance • P0011: “A” Camshaft Position - Timing Over-Advanced or System Performance Bank 1 and • P0012: “A” Camshaft Position - Timing Over-Advanced or System Performance Bank 2. • U0100: Lost Communication with ECM/PCM “A”"

CHEVROLET, GMC · 2024-09-06

This Preliminary information communicates a diagnostic tip for an SES MIL at startup with DTC U0100. Dealer are to test the accessory wake up circuit to the ECM for power.

TOYOTA · 2024-06-06

After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087. Upon investigation, it is found that the engine ECU has been damaged and needs to be replaced. In several cases, it was found that the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the negative (ground) cable clamps are attached on or around the engine ECU or ECU mounting bracket.

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…

VOLKSWAGEN · 2024-02-22

Engine Crank, No Start or No -J623- ECM Communication with DTC U0100 Stored in ECM Fault Memory

JEEP · 2023-08-29

Powertrain Control Module (PCM) Replacement 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): ? U0100-00 - Lost Communication with Engine Control Module (ECM). ? U1701-87 - Engine Control Module (ECM) - Missing message. Customer may also experience: ? Vehicle no start condition. This bulletin involves replacement of the PCM for a possible no start condition.

TOYOTA · 2023-07-27

RL: Due to certain programming in the brake ECU, under certain conditions, DTC U0100 is stored and cannot be cleared even though a technician attempts to do so. This condition does not affect the vehicle operation.

TOYOTA · 2023-07-27

DP: Due to certain programming in the brake ECU, under certain conditions, DTC U0100 is stored and cannot be cleared even though a technician attempts to do so. This condition does not affect the vehicle operation.

LINCOLN · 2023-06-02

Some 2023 Corsair vehicles may exhibit a continuous memory diagnostic trouble code (CMDTC) U0100 stored in the audio front control module (ACM) and/or instrument panel cluster (IPC) after a self test is performed with Ford Diagnosis and Repair System (FDRS) scan tool. If the vehicle does not exhibit any observable symptoms, these DTCs can be ignored. If any observable symptoms are present, refer to normal Workshop Manual (WSM) diagnostics.

TOYOTA · 2023-05-18

TT: After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087. Upon investigation, it is found that the engine ECU has been damaged and needs to be replaced. In several cases, it was found that the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the jumper cables are hooked up on or around the engine ECU or ECU mounting bracket

JEEP · 2023-05-06

Flash: Powertrain Control Module (PCM) Updates Customers may experience the following: ? Engine Stop/Start does not work as expected and it is often automatically deactivated. Customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? P2110 - Electronic Throttle Control System Bank 1 - Forced Limited RPM. ? P2173 - High Airflow/Vacuum Leak Detected (Slow Accumulation). ? U0100 - Lost Communication With ECM/PCM. ? P0456 - EVAP System Small Leak. NOTE: If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system. ? P1CEA - Boost Side EVAP Purge System Performance. In addition, the customer may…

FORD · 2023-04-25

Some 2023 F-Super Duty vehicles may set DTCs B109F:55, B1330:9A, U0252:87, U0198:87, U0184:87, U0155:87, U0256:87, and/or U0100:87 in the BCM when a diagnostic self-test is performed. This may be due to an incorrect sequence of an internal measurement unit during self-test causing a false history status DTC (0x48 or 0x08 status). The DTC matures to history status because the BCM detects nothing is wrong. Replacement or reprogramming of the BCM will not resolve this condition. B109F:55, B1330:9A, U0252:87, U0198:87, U0184:87, U0155:87, U0256:87, and/or U0100:87 should be ignored if: no other DTCs are present in the BCM, the malfunction indicator lamp (MIL) is not illuminated while the engine is running, and no drivability concerns are present. No further service action is required.

FORD · 2023-03-24

Some 2023 F-Super Duty vehicles may set diagnostic trouble code (DTC) U0100:87 in the telematics control unit (TCU) during a diagnostic self-test. This DTC sets when the TCU does not detect a valid signal from the powertrain control module (PCM) through the controller area network (CAN). U0100:87 should be ignored if: no other DTCs are present in the PCM or TCU module, the malfunction indicator lamp (MIL) is not illuminated while the engine is running, and no drivability concerns are present. No further service action is required.

JEEP · 2023-01-20

Flash: Powertrain Control Module (PCM) Updates **Customers may experience the following: Stop/start function deactivated.**Customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC): P2110 - Electronic Throttle Control System Bank 1 - Forced Limited RPM. P2173 - High Airflow/Vacuum Leak Detected (Slow Accumulation). U0100 - Lost Communication With ECM/PCM. P0456 - EVAP System Small Leak. NOTE: If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system. P1CEA - Boost Side EVAP Purge System Performance. In addition, the customer may also experience the following: The vehicle will not crank if the ECM gets hotter…