Faulty gear selection actuator position sensor; Open or high-resistance ground circuit to the sensor; Short to voltage on the sensor signal circuit; Damaged or corroded wiring harness or connector at the sensor or PCM; Internal PCM driver or signal circuit fault; Mechanical binding or misalignment of the gear selection actuator affecting sensor reading

DTC codes / P2Exx · Hybrid propulsion / P2E13

P2E13Gear Selection Actuator Position Sensor Circuit High

Q: What does code P2E13 mean?

Gear Selection Actuator Position Sensor Circuit High. P2E13 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the signal circuit of the gear selection actuator position sensor, which is used to confirm the actual gear engaged by the actuator. The PCM expects the sensor voltage to stay within a calibrated range, and a high reading typically means the signal circuit is shorted to voltage, the sensor ground is open, or the sensor itself has failed.

P2E13 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the signal circuit of the gear selection actuator position sensor, which is used to confirm the actual gear engaged by the actuator. The PCM expects the sensor voltage to stay within a calibrated range, and a high reading typically means the signal circuit is shorted to voltage, the sensor ground is open, or the sensor itself has failed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

Symptoms you may notice

Illumination of the check engine light or service transmission message
Transmission may default to a limp-home mode with limited gear selection
Harsh or delayed shifts, or refusal to engage certain gears
Inability to select manual or sport mode, if equipped
Often no symptoms besides the warning light, especially if the fault is intermittent

Common causes, most likely first

Faulty gear selection actuator position sensor
Open or high-resistance ground circuit to the sensor
Short to voltage on the sensor signal circuit
Damaged or corroded wiring harness or connector at the sensor or PCM
Internal PCM driver or signal circuit fault
Mechanical binding or misalignment of the gear selection actuator affecting sensor reading

How to diagnose and fix it

Connect a scan tool and record all stored and pending codes, then clear codes and road test to see if P2E13 returns
Inspect the sensor connector and wiring for corrosion, chafing, or loose pins, and repair as needed
Measure reference voltage and ground at the sensor connector with the key on, engine off, and compare to manufacturer specifications
Back-probe the sensor signal wire and check for a short to voltage by wiggle-testing the harness while monitoring the scan tool data
If wiring and grounds are good, remove the sensor and inspect the actuator for binding or damage that could skew the sensor reading
Replace the gear selection actuator position sensor if it fails resistance or voltage output tests, then clear codes and verify proper operation
If the fault persists after sensor replacement, test the signal circuit from the PCM to the sensor for continuity and shorts, and check for a faulty PCM

What a high sensor voltage really tells you

A high voltage reading on the sensor signal circuit often points to a poor ground rather than a failed sensor, because an open ground causes the signal voltage to float upward.
Intermittent P2E13 codes that appear only on rough roads or after engine wash frequently trace to a chafed wire in the harness near the transmission, not the sensor itself.
Some vehicles use a shared ground for multiple transmission sensors, so a single corroded ground point can set several related codes at once and mislead you into replacing good components.
The gear selection actuator position sensor may be integrated into the actuator assembly on certain designs, making it necessary to replace the entire unit rather than just the sensor.
A binding actuator mechanism can cause the sensor to report an out-of-range high voltage even when the electrical circuit is intact, so always inspect for mechanical freedom of movement.

Can I keep driving with P2E13?

If the transmission has entered limp-home mode or is shifting erratically, avoid highway driving and seek service promptly; if the only symptom is the warning light and the vehicle drives normally, you can drive cautiously to a repair shop but should not ignore the code.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.