U0482Invalid Data Received From Headlamp Leveling Control Module A
- Generic OBD-II code · Network
- How the car detects it
- U0482 is stored when messages from headlamp leveling control module A arrive but fail the receiver's integrity or plausibility checks; complete loss of contact is U0181, and U048B covers a second leveling unit. Such a module takes axle ride-height signals and moves the beam actuators so that a loaded boot or hard braking does not lift the cut-off line, as Hella explains; dynamic versions also react to acceleration. The module may publish values for others: Subaru bulletin 07-232-26 for the 2024 WRX with manual gearbox describes leveler modules whose computed vehicle inclination always read 0 degrees on the centre display, cured by a unit with revised logic. GM's Saab list names the partner U0181 without a letter. No manufacturer documents U0482 itself. Beam height may freeze; lighting warning, no MIL.
- What you may notice
- Headlamp leveling warning in the cluster
- Beam height no longer adapts to load and may dazzle or fall short
- Inclination display or related functions show fixed values
- Likely causes
- PossibleBent or faulty axle ride-height sensor feeding implausible values into the module
- PossibleLeveling module software computing or transmitting wrong values
- RareBasic setting of the leveling system not performed after repair or replacement
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.