AutoCodes – Generic – P1709

P1709 Code - Park/Neutral Position Switch Out Of Self-Test Range

Quick Answer

The Park/Neutral Position (PNP) Switch completes the start circuit in PARK and NEUTRAL, the back-up lamp circuit in REVERSE, and a neutral sense circuit. Common causes include Faulty Park/Neutral Position (PNP) Switch, Park/Neutral Position Switch harness is open or shorted, Park/Neutral Position Switch poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1709 indicates Park/Neutral Position Switch Out Of Self-Test Range.
Common causes
Common causes include Faulty Park/Neutral Position (PNP) Switch, Park/Neutral Position Switch harness is open or shorted, Park/Neutral Position Switch poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 36,769
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 13, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1709 Description

The Park/Neutral Position (PNP) Switch completes the start circuit in PARK and NEUTRAL, the back-up lamp circuit in REVERSE, and a neutral sense circuit. The sensor also opens/closes a set of four switches that are monitored by the Powertrain Control Module (PCM) to determine the position of the manual lever (P, R, N, (D), 2, 1). The Diagnostic Trouble Code (DTC) indicates that the voltage is high from the Park/Neutral Position Switch when it should be low.
OBDII Code P1709 - Park/Neutral Position Switch Out Of Self-Test Range - AutoCodes.com
P1709 Code - Park/Neutral Position Switch Out Of Self-Test Range

What are the Possible Causes of the DTC P1709?

  • Faulty Park/Neutral Position (PNP) Switch
  • Park/Neutral Position Switch harness is open or shorted
  • Park/Neutral Position Switch poor electrical connection
  • FaultyPowertrain Control Module (PCM)

How to Fix the DTC P1709?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1709 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1709 code?

Need more information on how to fix the P1709 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1709 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1709 Code

1. What are the common symptoms of OBDII code P1709?

- Common symptoms include difficulty starting the vehicle, hesitation or jerking when shifting gears, and the inability to shift out of park or neutral.

2. What can cause the OBDII code P1709 to trigger?

- The code P1709 is typically triggered by a malfunction in the park/neutral position switch, which may be caused by electrical issues, a faulty switch, or misalignment.

3. How can I diagnose the park/neutral position switch issue related to code P1709?

- To diagnose the park/neutral position switch, you can perform a visual inspection of the switch and its wiring, test the switch for continuity, and use a scan tool to check for any related trouble codes.

4. Can a DIYer repair the park/neutral position switch issue causing code P1709?

- Depending on your mechanical skills and tools, replacing the park/neutral position switch can be a DIY repair. However, if you are unsure, it is best to consult a professional mechanic for assistance.

5. Are there any temporary fixes for code P1709 related to the park/neutral position switch?

- In some cases, cycling the gear shifter through all positions several times can temporarily resolve the issue by reestablishing proper contact within the switch. However, this may not provide a permanent solution.

6. How critical is it to address OBDII code P1709 promptly?

- It is important to address code P1709 promptly as it can affect the vehicle's drivability and safety. Ignoring the issue may lead to further transmission problems and potential safety hazards.

7. Can a faulty park/neutral position switch cause other transmission-related issues besides code P1709?

- Yes, a malfunctioning park/neutral position switch can cause other transmission-related issues such as incorrect gear selection, harsh shifting, and even transmission failure if left unresolved.

8. Is resetting the OBDII code P1709 enough to fix the underlying problem?

- Simply resetting the code P1709 will not fix the underlying issue with the park/neutral position switch. It is essential to diagnose and address the root cause of the problem to prevent the code from recurring.

9. What is the typical cost to replace a park/neutral position switch causing code P1709?

- The cost to replace a park/neutral position switch can vary depending on the vehicle make and model, labor rates, and whether you choose to use an OEM or aftermarket part. On average, the repair may cost between $100 to $300.

10. Can code P1709 be triggered by issues unrelated to the park/neutral position switch?

- While code P1709 is primarily associated with park/neutral position switch problems, it can also be triggered by issues such as wiring faults, transmission control module issues, or other related components.

Discuss the causes and fixes for P1709 OBDII Code

Code P1709 comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play