OBD Guide

P086A

Neutral Position Sensor A Circuit/Open

P086A is an OBD-II diagnostic trouble code meaning: Neutral Position Sensor A Circuit/Open. Common causes: neutral position sensor circuit open, poor contact in the sensor connector. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Difficulty starting the engine
  • Incorrect operation of the gearbox
  • Check Engine Light Is On
  • The vehicle may not recognize the neutral position
  • Activating the emergency transmission mode

Causes

  • Neutral position sensor circuit open
  • Poor contact in the sensor connector
  • Malfunction of the neutral position sensor itself
  • Wiring harness damage
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect and clean connector contacts
  3. Check sensor resistance (compare with manufacturer specifications)
  4. Replace neutral position sensor if necessary
  5. Check the operation of the system after repair

Related codes

Error P086A by Vehicle Brand

FAQ

What does the P086A code mean?

P086A is an OBD-II diagnostic trouble code that indicates: Neutral Position Sensor A Circuit/Open

What causes a P086A error code?

The most common causes of P086A include: Neutral position sensor circuit open; Poor contact in the sensor connector; Malfunction of the neutral position sensor itself; Wiring harness damage.

How do I fix a P086A diagnostic trouble code?

To fix P086A: Check the integrity of the sensor circuit. Inspect and clean connector contacts. Check sensor resistance (compare with manufacturer specifications). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P086A?

Limited driving only, diagnose soon

How much does it cost to fix P086A?

The estimated repair cost for P086A is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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