P2E13Gear Selection Actuator Position Sensor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2E13 is the opposite case to P2E12: the position signal of the gear selection actuator sits above its highest plausible value. A short between the signal line and a supply wire is the classic cause; an open ground or, on pull-up inputs, a broken signal wire produce the same picture. No manufacturer documents P2E13 publicly. GM's 2023 TCM tables for a dual-clutch gearbox treat the high fault of a rod position sensor (P2834) as missing pulses with the pin above 3500 mV, or a duty cycle above 92 %, judged for 150 ms and only with valid sensor supply and battery voltage, Type A. CARB requires such out-of-range tests on transmission sensors. Measuring the line with the sensor unplugged separates a harness short from a sensor defect. The gearbox then normally stops shifting or keeps a fixed gear.
- What you may notice
- MIL and transmission warning
- Gearbox stays in one gear or in neutral
- Shift lever input ignored
- Likely causes
- LikelySignal wire shorted to a supply or 5 V reference line
- PossibleSensor ground open or high resistance
- PossiblePosition sensor faulty, output stuck high
- RareMoisture in the actuator connector bridging pins
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.