P082DGear Lever Y Position Sensor 1 Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- Gear lever X and Y position sensors detect a selector's position in two directions: on an H-gate shift and select direction (a LuK patent uses two sensors about 90° apart), on a shift-by-wire lever its two axes. P0820 covers the whole X-Y circuit, P0821–P0824 and P082A–P082F sensor 1, P089A–P08A3 a redundant sensor 2. GM uses P082A–P082F on its electronic range selector (2019 tables, Cadillac XT4, 2025): a Hall sensor delivers a PWM signal, measured as duty cycle. P082D is P082A for the Y axis: the Y position lies outside the lever's path (5.5 % equals about 100 N), the PWM signal has a frequency error, or Y sensors 1 and 2 differ by more than 12 %; 3 of 4 samples in 2019, 10 of 12 in 2025 with an added angle check. Type B, MIL after two trips.
- What you may notice
- Check engine lamp after two trips (GM)
- 'Shift to park' message or transmission warning
- Range selection restricted; with both sensors failed the vehicle goes to park
- Likely causes
- LikelySelector assembly faulty (Hall sensor, magnet, worn mechanism)
- PossibleConnector or wire with resistance or interference (frequency error)
- PossibleLever mechanically blocked (object in the console)
- RareEngine or selector module software
- Repair
- Medium · Usually a job for a workshop.Typical cost: €200 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.