Obdaryn

P2E07Gear Lever Position Sensor B Circuit High

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Can trigger limp mode
How the car detects it
P2E07 is the high-side circuit fault of gear lever position sensor B: its signal reads above anything the sensor may legitimately produce. An interrupted signal line on an input with pull-up, a short to battery or reference voltage, or a broken sensor ground are the classic causes. No maker publishes P2E07. On the Cadillac XT4 electronic shifter GM monitors sensor 2 axis by axis and sets P089D or P08A2 above 95 % duty cycle, 3 out of 4 samples on a 25 ms loop, Type B. Sensor A carries the selector meanwhile, which is the purpose of the redundancy described in GM's patent. P2E06 is the low fault of the same sensor and P2E03 the high fault of sensor A; both A and B high at once suggests a shared ground or connector.
What you may notice
  • Warning lamp and shift-system message
  • Normal shifting via sensor A
  • With P2E03 present as well, range selection may be blocked
Likely causes
  • LikelySignal line of sensor B open
  • PossibleGround of sensor B broken
  • RareSignal line shorted to battery or reference voltage
Repair
Medium · Usually a job for a workshop.Typical cost: €60 – €900

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.