Code
P2E02
Generic
P — Powertrain
Gear Lever Position Sensor A Circuit Low
Views:
UK: 14
EN: 24
RU: 17
AI status
Completed
Completed
100%
Causes
- Damaged or pinched wiring in the gear lever sensor harness
- Poor/loose/corroded connector or terminal at the sensor or module
- Short to ground on the sensor signal or supply circuit
- Failed gear lever position sensor (potentiometer / position sensor)
- Poor ground or missing reference voltage from control module
- Intermittent connector contact or water intrusion
Symptoms
- DTC P2E02 stored (Gear Lever Position Sensor A Circuit Low)
- Incorrect or no gear position displayed on dash
- Vehicle may not shift or may be stuck in a limp/neutral state
- Shift interlock or starter inhibit may prevent engine start (PRNDL related)
- Intermittent or fixed loss of shift-by-wire functionality
What to check
- Retrieve freeze frame and live data for gear lever position sensor A and related channels
- Perform a visual inspection of the gear lever area, sensor connector and harness for damage, corrosion, or water intrusion
- Check for any related DTCs (other gear lever sensor codes, PRNDL/gear range codes, communication errors)
- Verify battery voltage and battery condition before testing sensors
- With ignition ON (engine off), measure sensor reference (typically 5 V) and ground at the harness connector
- Measure the sensor output voltage while moving the lever through range and note if it stays low or changes
Signal parameters
- Typical sensor type: potentiometer or position sensor with reference ~5 V, output 0–5 V proportional to lever position
- ‘Circuit Low’ generally means signal voltage near 0 V or below the module’s low threshold (often
- Expected behavior: output should vary smoothly through range as lever moves; no output or stuck near 0 V indicates low circuit condition
Diagnostic algorithm
- Read and record freeze frame and all related codes; clear codes and attempt to re-create the fault
- Perform a thorough visual inspection of sensor, connector, and wiring for damage, pin corrosion, or water contamination
- With connector connected and ignition ON, back-probe and verify reference voltage (5 V) and signal ground at the sensor connector
- Measure sensor output voltage while an assistant moves the gear lever through its full range; observe live data for smooth change — if signal remains low, proceed
- If reference or ground are missing, trace and repair wiring to the control module; check module grounds and connectors
- If reference and ground are present but signal is low, disconnect sensor and measure resistance between signal wire and ground to check for a short to ground (low resistance suggests short)
- If wiring checks OK, replace the gear lever position sensor and retest; clear codes and verify operation over multiple ignition cycles and a short drive if required
- If fault returns after sensor replacement and wiring verified, inspect module connector and wiring to module and consider control module diagnosis/repair only after wiring and sensor confirmed good
Likely causes
- Wiring chafe near the lever or under-dash harness
- Corroded connector at the gear lever module or harness splice
- Sensor internal failure (worn potentiometer or failed electronics)
- Short to ground on the signal wire after recent repair or collision
Fault status
Status
PCM detected the gear lever position sensor A output voltage below the expected threshold (circuit low). The condition is stored when the signal is below the configured limit for the required monitoring time or when an open/short is present at key-on/engine-off or during operation.
Repair difficulty: Medium
Diagnostic time: 0.5-2.5 hours
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