Trailer Lamp Fault With Various DTCs – 2021-2023 Ford & Lincoln

Ford & Lincoln Logo

NHTSA ID Number: 10236029 Manufacturer Communication Number: SSM 51601 Summary Some 2021-2023 F-150 and 2022-2023 F-Super Duty/Expedition/Navigator/Maverick vehicles equipped with an integrated trailer module (iTRM) may exhibit a trailer lamp fault message with various related diagnostic trouble codes (DTC). Most trailer emulator testers will not draw enough current to correctly diagnose these concerns. They may be used …

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Customer Satisfaction Program 21B07 – Integrated Trailer Relay Module (ITRM) Reflash – 2021 Ford F-150

2021 Ford F-150

NHTSA ID Number: 10187810 Manufacturer Communication Number: 21B07   Summary In the affected vehicles, a battery drain may occur under a certain sequence of events due to a logic error in the ITRM. Under certain specific sequence, the ITRM battery drain may result in the inability to start the vehicle. A customer could experience a battery drain …

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