P089EGear Lever X Position Sensor 2 Circuit Intermittent/Erratic
- 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. P089E, for jumping or briefly dropping X sensor 2 signals, is used by no maker found; GM catches signal disturbances through the frequency error under P089B. The counterpart for sensor 1, P0823, is unused as well.
- What you may notice
- Selector warning at times
- Range selection hesitates sporadically
- Likely causes
- LikelyLoose contact at the selector connector
- PossibleSensor 2 with internal dropouts
- RareWire chafed in the console
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.