Faulty gear lever position sensor A; Wiring damage such as chafed, corroded, or broken wires in the sensor circuit; Loose or corroded electrical connector at the sensor or PCM; Mechanical misalignment or binding in the shift lever assembly; Water intrusion or contamination inside the sensor connector; PCM software calibration issue or internal PCM fault

DTC codes / P2Exx · Hybrid propulsion / P2E01

P2E01Gear Lever Position Sensor A Range/Performance

Q: What does code P2E01 mean?

Gear Lever Position Sensor A Range/Performance. P2E01 indicates that the powertrain control module (PCM) has detected an out-of-range or erratic signal from the gear lever position sensor A, which is responsible for reporting the selected gear or shift lever position. The PCM compares this signal against expected values for the current operating conditions and sets the code when the voltage or rationality check fails.

P2E01 indicates that the powertrain control module (PCM) has detected an out-of-range or erratic signal from the gear lever position sensor A, which is responsible for reporting the selected gear or shift lever position. The PCM compares this signal against expected values for the current operating conditions and sets the code when the voltage or rationality check fails.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

Symptoms you may notice

Illumination of the check engine light or service engine soon light
Harsh or delayed shifting because the PCM cannot determine the intended gear
Inability to start the engine if the PCM does not recognize park or neutral
Erratic operation of reverse lamps, backup camera, or park assist
Transmission stuck in a single gear or default limp mode
Often no symptoms besides the warning light

Common causes, most likely first

Faulty gear lever position sensor A
Wiring damage such as chafed, corroded, or broken wires in the sensor circuit
Loose or corroded electrical connector at the sensor or PCM
Mechanical misalignment or binding in the shift lever assembly
Water intrusion or contamination inside the sensor connector
PCM software calibration issue or internal PCM fault

How to diagnose and fix it

Verify the code with a scan tool and check for any related transmission or body control codes
Inspect the sensor connector and wiring for corrosion, damage, or loose pins
Check the sensor's reference voltage and ground circuits with a multimeter
Compare the sensor signal voltage across the full range of lever positions against the manufacturer's specification
Inspect the shift lever mechanism for binding, wear, or misalignment that could affect sensor movement
Replace the gear lever position sensor if electrical and mechanical checks pass but the signal remains out of range
Clear the code and perform a road test to confirm the repair, reprogramming the PCM if required

Before you replace the gear lever sensor

A misadjusted shift cable or worn linkage can cause the sensor to report an implausible position even when the sensor itself is healthy.
Corrosion inside the connector is a frequent culprit, especially on vehicles with floor-mounted shifters exposed to spills or humidity.
The PCM may set P2E01 as a rationality code when the sensor signal is plausible but does not match the expected pattern during a shift sequence.
Some vehicles use the gear lever position signal for reverse lamps and park assist, so those systems may act up without any transmission symptoms.
After replacing the sensor, a relearn or calibration procedure is often required; skipping it can cause the code to return immediately.

Can I keep driving with P2E01?

If the vehicle drives and shifts normally, you can drive cautiously to a repair shop, but avoid aggressive acceleration or towing. If the transmission is in limp mode or the engine will not start, stop driving and arrange a tow to prevent further damage.

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.