P089AGear Lever X Position Sensor 2 Circuit
- 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 position sensor 2 is the redundant second sensor of an electronic selector lever, next to sensor 1 (P0821 ff), for the X or Y axis. The only documented user is GM's electronic range selection with PWM Hall sensors, as in the Cadillac XT4, and only for range, low and high. Following GM's patent, an invalid sensor is dropped and the other carries on; with both invalid the module can request park. P089A, the general circuit fault of X sensor 2, is used by no maker found; GM reports circuit faults through duty-cycle low or high and frequency errors under P089B.
- What you may notice
- Gearbox or selector warning in the cluster
- Range selection delayed or limited
- Usually still drivable, sensor 1 takes over
- Likely causes
- LikelyWire or connector at the selector module open
- PossibleSensor 2 in the selector faulty
- RareSpilled liquid in the centre console
- Repair
- Medium · Usually a job for a workshop.Typical cost: €250 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.