Powertrain, generic (extended)

P2E14 Gear Selection Actuator Position Sensor Circuit Intermittent/Erratic

Check engine lightOn

EmissionsRelevant

Drive cycleRequired

Limp modePossible

P2E14 covers a position signal from the gear selection actuator that is present but unsteady: it drops out for moments, jumps or carries an implausible frequency or pattern, without staying low or high long enough for P2E12 or P2E13. No manufacturer documents P2E14 publicly. Two related checks show what erratic means in practice. GM's 2023 dual-clutch TCM tables reject a rod position sensor whose carrier frequency leaves the 1500 to 2500 Hz band for 150 ms (P2835, Type A). Ford's 2012 DPS6 summary watches the three Hall signals of each shift drum motor and sets P2835 if their sequence comes out of order. Loose pins, harness chafing that only touches under vibration, and electrical noise are typical. Drivers notice sporadic refused shifts or brief neutral drops that later vanish.

Likely causes

Loose or fretted terminal in the actuator connector

Harness chafing that only shorts or opens under vibration or heat

Interference from damaged shielding or nearby motor wiring

Sensor with an internal intermittent fault

Symptoms

Occasional refused or delayed shifts
Short drops to neutral while driving
Warning lamp that comes and goes

Repair estimate

DifficultyHardWorkshop job

Parts and labour€80–1,500

Time1–5 h

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

Parts involved

gear selection actuator position sensorwiring harnesstcm

References: gsi.ext.gm.com, newtonnet.co.uk, law.cornell.edu.