P2E0B

Code

Generic P — Powertrain

Gear Lever Position Sensor C Circuit High

Brand: Generic

Type: P — Powertrain

Views: UK: 22 EN: 23 RU: 22

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Page language: EN

Causes

Short to battery positive in the sensor C signal wire
Open or corroded ground for the gear lever sensor assembly
Failed Gear Lever Position Sensor (internal short or fault)
Damaged connector or wiring (chafing, pin pushed out, corrosion, water ingress)
Poor connector mating or bent terminal causing intermittent high voltage
Faulty transmission/ECU input circuit

Symptoms

Incorrect or no gear position displayed on dash
Transmission may default to limp or restricted mode
Starter inhibited (vehicle thinks not in Park/Neutral) on some vehicles
Intermittent or stuck shift selection
Related fault lamps (check engine, transmission) illuminated

What to check

Read live data for all gear lever position sensor channels while moving selector through positions
Clear code and attempt to re-create; note whether code returns immediately or under movement
Visually inspect connectors and wiring harness at gear lever and transmission for damage or corrosion
Backprobe sensor C signal and measure voltage with ignition ON while changing lever positions
Measure continuity to ground and check for shorts to battery positive on the signal wire
Inspect for water intrusion or bent pins in connector

Signal parameters

Typical sensor signal: 0–5 V (varies by design). 'High' means voltage above expected range or above reference threshold
Expected idle/position voltages vary by manufacturer — examples (typical ranges only): Park ~4.0–5.0 V, Reverse ~3.0–4.0 V, Neutral ~2.0–3.0 V, Drive ~1.0–2.0 V, Low ~0–1.0 V
Sensor resistance (if potentiometer type) typically changes with lever position; infinite/OL indicates open circuit
Watch for steady high voltage (~battery voltage) on the signal wire with ignition ON — indicates short to B+ or driver fault

Diagnostic algorithm

Connect a qualified scan tool. Record freeze frame and live data for Gear Lever Position Sensor C and related channels. Note when the high condition occurs.
Visually inspect the gear lever sensor connector and wiring for damage, corrosion, or water entry. Repair obvious damage before further testing.
With harness accessible, backprobe the sensor C signal wire. With ignition ON (engine off as required), observe voltage while moving selector through all positions. Confirm whether voltage is consistently high or only in certain positions/movements.
Check for short to B+: with key off remove connector and measure between the signal terminal and battery positive. A near-zero resistance indicates a short. Also check between signal terminal and ground — should not be shorted when connector disconnected (except expected internal resistances).
Check ground and reference power: verify sensor ground is good and any sensor reference voltage (if used) is present and correct.
If wiring and connector are good, bench-test or substitute a known-good gear lever position sensor (if available) or measure sensor resistance across terminals while moving lever. Replace sensor if it shows stuck/high/open values.
Repair or replace damaged wiring/connector pins as needed. After repairs, clear codes and re-test to confirm code does not return and sensor behaves correctly in live data.
If wiring and sensor test good and code persists, consider module input fault; perform module diagnostics and consult manufacturer repair information before replacing ECU/module.