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Ford TSB #21B07
2021 Ford F-150
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- 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 within 14 hours under the following conditions: the trailer is connected, vehicle is unlocked, parked, and the engine is off.
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