OBD Guide

P1709

Park/Neutral Position Switch Out Of Self-Test Range

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–67 (est.)

Symptoms

  • Difficulty starting the engine
  • Incorrect idle speed
  • The car starts in any selector position
  • Gear indication is incorrect
  • Automatic transmission is not working properly

Causes

  • P/N position sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Mechanical problems with the selector cable
  • ECU malfunction

How to Fix

  1. Check the integrity of the wiring to the sensor
  2. Clean the electrical contacts of the sensor
  3. Check gear selector cable adjustment
  4. Replacing the P/N position sensor if necessary
  5. Check the operation of the computer

Related codes

Error P1709 by Vehicle Brand