&
TECHNICAL SERVICE BULLETIN 24-2122
Equipped With 2kW (Not 400W) DCACA Inverter (Minor Feature Code 25 April 2024
HUKAK) - Illuminated TPMS Indicator With DTC B124D:02 Stored In BCM
This bulletin supersedes 23-2276. Reason for update: clarify the vehicle applications
Model:
Ford
2021-2023 F-150
Markets: North American markets only
Issue: Some 2021-2023 F-150 vehicles equipped with a 2 kilowatt (kW) (not 400 watt (W)) DCACA inverter (minor
feature code HUKAK) may exhibit an illuminated TPMS indicator with DTC B124D:02 stored in the BCM. This may
be due to the DCACA inverter causing RFI. To confirm a vehicle is built with a certain minor feature code, review the
build information by double-clicking the VIN in the upper left corner in the PTS website. To correct this condition,
follow the Service Procedure to confirm if the inverter is the source of RF| and mitigate the interference.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:
* 2021-2023 F-150
+ Equipped with a 2 kW (not 400 W) DCACA inverter (minor feature code HUKAK)
+ DTC B124D:02 in the BOM
Parts
Service | Package ;
Claim Number in an
Part a Order Description
Quantity ag Joon fe |
FL3Z- 2 2 1 Garment Hook, Light Slate - Refer To The
9929024-AJ Parts Catalog For The VIN Specific
Application
FL3Z- 2 2 1 Garment Hook, Java - Refer To The Parts
9929024-AB Catalog For The VIN Specific Application
FL3Z- 2 2 1 Garment Hook, Black Onyx - Refer To The
9929024-AK Parts Catalog For The VIN Specific
Application
NAI837X As As Needed Rotunda® Coroplast Electrical Wire Harness | Rotunda®
Needed Tape part number
Obtain 1 Fair-Rite Products Corp.® Round Cable
Locally Snap-Its (0461164281) - 61 Round Cable
Core Assembly), 6 mm Core Inside Diameter
Parts - Only If Necessary
Service Part ; a4, | Package Order 5 ge
164-R9343-1332 Only If Only If Necessary |3M™ Film Tape 9343 (13/32 in x} Rotunda® part
Necessary 36yd) number
Claim Quantity refers to the total number of individual pieces required to repair the vehicle.
Package Order Quantity refers to the amount of the service part number package(s) required to repair the vehicle.
Number In Package refers to the number of individual pieces included in a service part number package.

As Needed indicates the amount of the part may vary and/or is not a whole number. Parts can be billed out as non-
whole numbers, including less than 1.
Only If Necessary indicates the part is not mandatory.
Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part Warranty
(SPW)/Special Service Part (SSP)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not
altered by a TSB. NVLW/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified
using the OASIS part coverage tool.
Labor Times
No.
2021-2023 F-150 SuperCab: Diagnose And Install Ferrite Bead Following The Service 242122A 2.3
Procedure Includes Time To Access Harness And Road Tests (Do Not Use With Any Other Hrs.
Labor Operations)
2021-2023 F-150 SuperCrew: Diagnose And Install Ferrite Bead Following The Service 242122B 27
Procedure Includes Time To Access Harness And Road Tests (Do Not Use With Any Other Hrs.
Labor Operations)
Repair/Claim Coding
Condition Code:
Service Procedure
NOTE: This repair does not apply to vehicles equipped with 400w inverters and should not be performed on
vehicles equipped with minor feature codes HUKAJ or HUKAD.
1. Confirm the inverter is the source of RFI.
(1). Disconnect connector C3501C going to the DCACA inverter. Refer to the Wiring Diagram, Cell 150 -
Connector Views, C3501C (Direct Current/Alternating Current (DC/AC) Inverter).
(2). Perform a 20 minute road test at 32 km/h (20 mph) or higher. If the TPMS indicator is no longer illuminated at
any point, end the road test.
2. Is DTC B124D still present in the BCM after road tests?
(1). Yes - this article does not apply. Refer to the WSM, Section 204-04B Tire Pressure Monitoring System
(TPMS), Diagnosis and Testing for normal diagnostics.
(2). No - proceed to Step 3.
3. Reconnect connector C3501C to the DCACA inverter.
4. Obtain access to the RTM but do not remove it. (Figure 1). Refer to WSM, Section 419-10 Multifunction Electronic
Modules, Removal and Installation.
Figure 1

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5. Disconnect connector C9026 from the RTM. Refer to the Wiring Diagram, Cell 150 - Connector Views, C9026
(Radio Transceiver Module (RTM)).

6. Install the Fair-Rite Products Corp.® Round Cable Snap-lts onto the 14A005 harness, approximately 25 mm (1
inch) before connector C9026 (Figure 2). Make sure the Round Cable Snap-lts is clean and free of oil, dirt, or
grease, as it could affect the ability to mitigate RF]. Do not open and close the Round Cable Snap-Its more than
necessary as it could affect the ability to mitigate RFI.

Figure 2

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7 - -= _
as
416552
(1). To close the Round Cable Snap-Its onto the harness, place the Round Cable Snap-lts over the harness in the
required location, close it, and press the two sides of the Round Cable Snap-Its together until there is an
audible/tactile click. (Figure 3) Make sure to not damage the wiring when closing the Round Cable Snap-lts.
Figure 3

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Sfp sareat=
416553
7. Wrap Coroplast electrical wire harness tape around the Round Cable Snap-lts to secure it onto the harness. Do
not cover the exposed wiring near connector C9026 with tape as it could stress the wiring to connector C9026. If
necessary, use 3M™ Film Tape 9343 to secure the Round Cable Snap-Its and harness further to prevent stress on
connector C9026.
8. Reinstall the headliner. Refer to the WSM, Section 501-05 Interior Trim and Ornamentation, Removal and
Installation, Headliner - Lowering.
9. Perform a 20 minute road test at 32 km/h (20 mph) or higher. If the TPMS indicator is no longer illuminated at any
point, end the road test.
10. Is DTC B124D present after road test?
(1). Yes - perform additional diagnostics outside of this article. Refer to the WSM, Section 204-04B Tire Pressure
Monitoring System (TPMS), Diagnosis and Testing.
(2). No - repair complete.
© 2024 Ford Motor Company
All rights reserved.
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and
equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information
that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers”. Do not assume that a condition
described affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy
and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article.
The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supersede
this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.