Powertrain, generic (extended)

P2E00 Gear Lever Position Sensor A Circuit

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

Gear lever position sensor A is the first of up to four sensors through which an electronic selector tells its control module where the lever sits. In the designs GM and Toyota document, A and B form a redundant pair that each report the full lever position; GM's patent US9249877 has each of its two sensors deliver an x and a y value. P2E00 is the umbrella circuit fault of sensor A: an open line, a lost supply or a signal the module cannot evaluate, without splitting it into low or high. No manufacturer documents P2E00 publicly; in its 2025 ECM tables GM lists only P2E01 for this sensor and suspends that test while lost-communication U codes are stored. CARB 1968.2 (e)(15) requires circuit monitoring of such transmission inputs. With sensor B valid, shifting usually continues.

Likely causes

Loose connector or chafed wire at the selector assembly
Supply or ground of sensor A interrupted
Sensor A inside the selector assembly failed
Input stage of the evaluating module faulty

Symptoms

  • Warning lamp or shift-system message
  • Gear selection still possible through sensor B, sometimes delayed
  • With a second fault, the vehicle may stay in P or N

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–900
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

gear lever position sensor awiring harnesstcm

Related codes

P2E01P2E02P2E03P2E04P0820

References: law.cornell.edu, image-ppubs.uspto.gov, static.nhtsa.gov, gsi.ext.gm.com.