P059A: Tucson active-air-flap warning traced to sensor solder connections

The source identifies an internal sensor connection

P059A is the check-engine-light fault addressed by Hyundai’s active-air-flap sensor bulletin. The manufacturer identifies improper soldering inside the sensor components as the connection problem. This evidence supports checking the specific sensor campaign before assuming that the complete grille mechanism is jammed or that every airflow-related warning requires replacement of the flap assembly.

Two diagnostic sensors are specified

The documented repair replaces both active-air-flap onboard-diagnostic sensors on the front bumper. Access requires bumper removal under the appropriate shop-manual procedure; the bulletin illustrates the two sensor locations, connectors and mounting screws. It calls for a photograph showing the removed and replacement sensors with vehicle identification details for repair validation. Ask the shop whether the affected sensors, rather than only a visible flap or unrelated air-temperature sensor, are the parts being quoted.

Use the applicability table and verify all modules afterward

Although the introductory description mentions 2024 models, the actual applicability table includes 2024–2025 vehicles in a defined production interval and VIN prefix. A dealer should resolve eligibility using the individual VIN. After reassembly and battery reconnection, the source requires an all-systems fault search and removal of incidental fault history. The repair record should preserve the initial P059A finding and confirm the warning does not return. Faults on a different Tucson generation or outside this campaign require normal diagnosis; this bulletin gives no justification for resoldering sealed sensors at home.

Source and applicability

Hyundai bulletin 24-BE-019H, December 2024: the applicability table lists 2024–2025 Tucson NX4A produced June 2–October 3, 2024, with VINs beginning 5NM. Confirm campaign applicability for the individual VIN.

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