U211B · Manufacturer communications

FORD, LINCOLN · 2026-09-25

Some 2024-2026 F-150, 2025 Explorer/Aviator, 2025-2026 Expedition/Navigator, or 2026 F-Super Duty vehicles may exhibit diagnostic trouble code (DTC) U211B:43:48 stored in the body control module (BCM) when performing a Self-Test. This DTC sets due to an internal BCM timing issue during the self-test process. This specific code has no customer impact and does not cause any drivability concerns or warning messages. Clearing DTC U211B:43:48, reprogramming the BCM, or replacing the BCM is unlikely to prevent this DTC from setting. This DTC does not trigger a condition covered under warranty. Note: This guidance only applies to U211B with the specific failure byte 43 in status 48. Any other trusted real-time operation network (TRON) DTCs or different failure bytes associated with U211B are…

LINCOLN · 2026-06-11

Some 20242026 Nautilus vehicles may have previously exhibited unsuccessful programmable module installation (PMI) starting with a CallGetRestore Invalid hardware error message, when using the Ford Diagnosis and Repair System (FDRS) to program a new door latch control module E (DCME), door latch control module F (DCMF), door latch control module G (DCMG), and/or door latch control module H (DCMH). Diagnostic trouble code (DTC) U211B may also be stored in the door latch control module. The programming concern has been corrected. Download and run the applicable PMI application again using the latest software version of the FDRS scan tool. Make sure to follow any remaining steps to complete the door latch installation and programming. Refer to Workshop Manual (WSM), Section 501-14 > Removal…

FORD, LINCOLN · 2025-05-12

After replacement of any TRON module, the gateway module (GWM) and the TRON capable modules can set diagnostic trouble codes (DTCs) U211A, U211B, U211C, U3034, U3035, U3036, U35D9, U35DA and/or U35DB if the secret authentication security keys are not aligned between the modules, a loss of communication is occurring between modules and/or a module is not responding. This may be a result of missing the new module secret authentication security key obtained when running the Ford Diagnosis and Repair System (FDRS) "Trusted Real-Time Operation Network (TRON) Module Authentication" procedure after replacement. When replacing a TRON capable module, run the FDRS "Trusted Real-Time Operation Network (TRON) Module Authentication" procedure in the GWM tool box, not in the toolbox of the module with…

FORD, LINCOLN · 2025-04-14

After replacement of any TRON module, the gateway module (GWM) and the TRON capable modules can set diagnostic trouble codes (DTCs) U211A, U211B, U211C, U3034, U3035, U3036, U35D9, U35DA and/or U35DB if the secret authentication security keys are not aligned between the modules, a loss of communication is occuring between modules and/or a module is not responding. This may be a result of missing the new module secret authentication security key obtained when running the Ford Diagnosis and Repair System (FDRS) "Trusted Real-Time Operation Network (TRON) Module Authentication" procedure after replacement. When replacing a TRON capable module, run the FDRS "Trusted Real-Time Operation Network (TRON) Module Authentication" procedure to distribute a new set of secret authentication security…

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 · 2025-04-04

This article supersedes TSB 24-2398 to update the labor times associated with the Service Procedure from M-time to AP-time. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: DTC U211B:87 stored in the HCM IPC message "Advanced Lighting Features Are Temporarily Unavailable" self clears within 5 seconds Adaptive autolamp lighting features are inoperative, standard exterior lighting functions properly This may be due to an HCM communication error and the software in the HCM.

FORD · 2024-11-23

Some 2024 F-150 non-Lightning vehicles may exhibit an IPC message "Advanced Lighting Features Are Temporarily Unavailable" and DTC U211B:87 in the HCM when a diagnostic self-test is performed.

FORD · 2024-08-14

Some 2024 F-150 vehicles may exhibit diagnostic trouble code (DTC) U211B:87 in the headlamp control module (HCM) when a diagnostic self-test is performed.

FORD, LINCOLN · 2024-07-30

Some 2025 Explorer/Aviator/Police Interceptor Utility vehicles may set diagnostic trouble code (DTC) U211B:87 in the headlamp control module (HCM) when a diagnostic self-test is performed. This may be due to a HCM communication error within a specified timeframe. DTC U211B:87 does not affect vehicle durability with no effect on vehicle operation and no additional diagnostics or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution for this condition that is expected in Q3 2024. Replacement or reprogramming of the HCM will not resolve this condition.

FORD, LINCOLN · 2024-07-19

Some 2023-2024 F-Super Duty and 2024 F-150/Nautilus vehicles may set DTC U211B:51 in the telematics control unit (TCU) module after a software update on the TCU is performed at dealer or via over the air (OTA) Update. The DTC U211B:51 in the TCU has no effect on vehicle functionality or connectivity. Replacement or reprogramming of the TCU will not resolve this condition. DTC U211B:51 should be ignored if no other DTCs are present in the TCU and no symptoms present. No further service action is required.

FORD · 2024-06-05

Some 2024 Mustang vehicles built on or before 10-Feb-2024 may set diagnostic trouble code (DTC) U211B:87 in the ABS module during a diagnostic self-test. This may be due to the modules DTC sensitivity during vehicle key-on/start-up. Replacement or reprogramming of the ABS module may not resolve this condition. U211B:87 should be ignored if no other DTCs are present, no warning indicators are illuminated while the engine is running, and no noticeable symptoms are present. No further service action is required.

FORD · 2024-03-01

Some 2024 F-150 vehicles may set diagnostic trouble code (DTC) U211B:87 in the headlamp control module (HCM) when a diagnostic self-test is performed. This may be due to a HCM communication error within a specified timeframe. DTC U211B:87 does not affect vehicle durability with no effect on vehicle operation and no additional diagnostics or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution for this condition that is expected in Q2 2024. Replacement or reprogramming of the HCM will not resolve this condition. Monitor OASIS for additional information and schedule service appointments for customers once the repair becomes available.

FORD · 2024-02-08

Some 2024 Mustang vehicles may set diagnostic trouble code (DTC) U211B:87 in the ABS module during a diagnostic self-test. This may be due to the ABS module's DTC sensitivity during vehicle key-on/start-up. To correct the condition, reprogram the ABS module using the latest software level of the Ford Diagnosis and Repair System (FDRS) diagnostic scan tool. For claiming, use the causal part number 2005 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.

LINCOLN · 2023-12-08

Some 2024 Nautilus vehicles may set diagnostic trouble code (DTC) U211B:87 in the remote function actuator (RFA) module when a diagnostic self-test is performed. This may be due to an internal counter reaching a specified limit. U211B:87 has no effect on functionality and will automatically become a historical DTC which can be cleared. Replacement or reprogramming of the RFA module will not resolve this condition. U211B:87 should be ignored and no further service action is required if no other DTCs are present in the RFA, no warning indicators are illuminated while the engine is running, and no symptoms present.

LINCOLN · 2023-12-08

Some 2024 Nautilus vehicles may exhibit diagnostic trouble code (DTC) U211B:87 in the anti-lock brake system (ABS) module when a diagnostic self-test is performed. This may be due to a module communication error within a specified timeframe. U211B:87 has no effect on functionality and will automatically become a historical DTC which can be cleared. Replacement or reprogramming of the ABS module will not resolve this condition. Engineering is currently working on a software update which is expected in Q1 2024. Continue to monitor OASIS for additional information.

FORD · 2023-08-24

Some 2024 Mustang vehicles may set diagnostic trouble code (DTC) U211B:87 in the ABS module during a diagnostic self-test. This may be due to the modules DTC sensitivity during vehicle key-on/start-up. Replacement or reprogramming of the ABS module may not resolve this condition. U211B:87 should be ignored if: no other DTCs are present, no warning indicators are illuminated while the engine is running, and no noticeable symptoms are present. No further service action is required.

FORD · 2023-06-20

Some 2023 F-Super Duty vehicles may set diagnostic trouble code (DTC) U211B:87 in various modules when a diagnostic self-test is performed, which includes: powertrain control module (PCM), advanced driver assistance system (ADAS), anti-lock brake system (ABS), power steering control module (PSCM), body control module (BCM), telematics control unit (TCU), driver door module (DDM), and/or passengers door module (PDM). This may be due to the modules DTC sensitivity during vehicle key-on/start-up. Replacement or reprogramming of these module(s) may not resolve this condition. U211B:87 should be ignored if: no other DTCs are present, no warning indicators are illuminated while the engine is running and no noticeable symptoms are present. No further service action is required.

FORD · 2023-06-01

Some 2023 F-Super Duty vehicles equipped with SYNC 4 may experience programming errors after a replacement of the body control module (BCM) for various concerns. After programmable module installation (PMI) of the new BCM, diagnostic trouble codes (DTC) U2100:00, U2101:00 and/or U211B:87 may be present. Download and run the Ford Diagnosis and Repair System (FDRS) application titled Trusted Real-Time Operation Network (TRON) Module Authentication, and perform the TRON Diagnosis and Repair and Reset ECU on CAN BUS routines. Once both TRON routines have been completed, re-run the BCM PMI application. Verify that all BCM DTCs have cleared. Service procedures are being updated to improve this process. Monitor OASIS for updates.

FORD · 2023-05-26

Some 2023 F-Super Duty vehicles equipped with SYNC 4 may require a replacement of the body control module (BCM) for various concerns. After programmable module installation (PMI) of the new BCM, diagnostic trouble codes (DTC) U2100:00, U2101:00 and/or U211B:87 may be present. Download and run the Ford Diagnosis and Repair System (FDRS) application titled Trusted Real-Time Operation Network (TRON) Module Authentication, and perform the TRON Diagnosis and Repair and Reset ECU on CAN BUS routines. Once both TRON routines have been completed, re-run the BCM PMI application. Verify that all BCM DTCs have cleared. Service procedures are being updated to improve this process. Monitor OASIS for updates.

FORD · 2023-03-23

Some 2023 F-Super Duty vehicles may set diagnostic trouble code (DTC) U211B:08 in the ABS module during a diagnostic self-test. This may be due to the ABS modules DTC sensitivity during vehicle key-on/start-up. U211B:08 should be ignored if: no other DTCs are present in the ABS 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.