Faulty gear lever position sensor A, including internal wear or contamination; Damaged or corroded wiring harness or connector at the sensor or PCM; Poor electrical connection due to loose pins or water intrusion; Open circuit or high resistance in the sensor signal wire; Failed PCM driver or internal circuit issue (less common); Mechanical misalignment of the gear lever mechanism affecting sensor reading

DTC codes / P2Exx · Hybrid propulsion / P2E02

P2E02Gear Lever Position Sensor A Circuit Low

Q: What does code P2E02 mean?

Gear Lever Position Sensor A Circuit Low. P2E02 indicates that the powertrain control module (PCM) has detected a low voltage condition on the signal circuit of the gear lever position sensor A. This sensor, often part of the transmission range sensor or a dedicated lever position sensor, tells the PCM which gear the driver has selected, and a low signal can disrupt transmission operation and starting logic.

P2E02 indicates that the powertrain control module (PCM) has detected a low voltage condition on the signal circuit of the gear lever position sensor A. This sensor, often part of the transmission range sensor or a dedicated lever position sensor, tells the PCM which gear the driver has selected, and a low signal can disrupt transmission operation and starting logic.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

Symptoms you may notice

Illumination of the check engine light or service transmission message
Harsh or delayed transmission shifts, or the transmission may default to a limp mode
Inability to start the engine because the PCM does not recognize Park or Neutral
Incorrect or flashing gear position indicator on the instrument cluster
Unexpected movement or failure to engage the selected gear when shifting
Often no symptoms besides the warning light, especially if the fault is intermittent

Common causes, most likely first

Faulty gear lever position sensor A, including internal wear or contamination
Damaged or corroded wiring harness or connector at the sensor or PCM
Poor electrical connection due to loose pins or water intrusion
Open circuit or high resistance in the sensor signal wire
Failed PCM driver or internal circuit issue (less common)
Mechanical misalignment of the gear lever mechanism affecting sensor reading

How to diagnose and fix it

Verify the code with a scan tool and check for any related transmission or starting codes
Inspect the sensor connector and wiring for corrosion, damage, or loose pins, and repair as needed
Measure the sensor signal voltage with a multimeter while moving the gear lever through its range, comparing to manufacturer specifications
Check the sensor ground and reference voltage circuits for continuity and correct values
If the sensor output is out of specification, replace the gear lever position sensor and clear the code
Perform a relearn or calibration procedure if required by the vehicle manufacturer
Test drive the vehicle to confirm the repair and ensure no codes return

Common misdiagnosis of gear lever sensor codes

A low signal code often results from a simple loose or corroded connector, so always inspect the wiring before condemning the sensor.
The gear lever position sensor may be integrated into the transmission range sensor, and replacing the entire assembly is sometimes necessary even if only one circuit fails.
Intermittent faults can be caused by a worn ignition switch or a faulty neutral safety switch, which can mimic sensor signal issues.
After replacement, some vehicles require a relearn procedure for the transmission control module to recognize the new sensor's range.
This code does not always indicate a failed sensor; a short to ground in the signal wire can also set it, so circuit testing is essential.

Can I keep driving with P2E02?

If the vehicle drives and shifts normally, you can drive cautiously to a repair shop, but avoid relying on the gear indicator and be prepared for unexpected shifting. If the transmission is in limp mode or the engine will not start, do not drive and have the vehicle towed.

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.