AutoCodes – Ford – P1709 1999 Ford F150

P1709 1999 Ford F150 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 1999 Ford F150 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.

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Code Popularity 3,432

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jul 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1709 1999 Ford F150 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 1999 Ford F150 - Park/ Neutral Position Switch Out Of Self-Test Range - AutoCodes.com — P1709 1999 Ford F150 Code - Park/ Neutral Position Switch Out Of Self-Test Range

What does this mean?

What are the Possible Causes of the DTC P1709 1999 Ford F150?

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 1999 Ford F150?

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 1999 Ford F150 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 1999 Ford F150 code?

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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 1999 Ford F150 Code

1. What are the common symptoms of OBDII code P1709 in a 1999 Ford F150?

The common symptoms of OBDII code P1709 in a 1999 Ford F150 include issues with shifting gears, the transmission not engaging properly, and the vehicle not starting.

2. What does the OBDII code P1709 "Park/Neutral Position Switch Out Of Self-Test Range" mean on a 1999 Ford F150?

The code P1709 indicates that the park/neutral position switch is not functioning correctly or is out of range during the self-test on a 1999 Ford F150.

3. What are the possible causes of OBDII code P1709 in a 1999 Ford F150?

The possible causes of OBDII code P1709 in a 1999 Ford F150 include a faulty park/neutral position switch, damaged wiring or connectors, or issues with the transmission control module.

4. How can I diagnose the OBDII code P1709 in my 1999 Ford F150?

To diagnose OBDII code P1709 in a 1999 Ford F150, you can use a scan tool to retrieve the trouble codes, inspect the park/neutral position switch and its wiring for any damage, and test the switch for proper functionality.

5. Can I still drive my 1999 Ford F150 with OBDII code P1709?

It is not recommended to drive your 1999 Ford F150 with OBDII code P1709, as it can lead to further transmission issues and potential safety hazards.

6. How can I repair OBDII code P1709 in my 1999 Ford F150?

To repair OBDII code P1709 in a 1999 Ford F150, you may need to replace the park/neutral position switch, repair any damaged wiring or connectors, or reset the transmission control module.

7. Is it possible to reset the OBDII code P1709 in my 1999 Ford F150 without repairs?

While you can clear the trouble code with a scan tool, it is important to address the underlying issue causing OBDII code P1709 in a 1999 Ford F150 to prevent further problems.

8. Will OBDII code P1709 cause my 1999 Ford F150 to fail an emissions test?

Yes, OBDII code P1709 can cause your 1999 Ford F150 to fail an emissions test, as it indicates a malfunction in the transmission system that can affect the vehicle's emissions.

9. How much does it cost to repair OBDII code P1709 in a 1999 Ford F150?

The cost to repair OBDII code P1709 in a 1999 Ford F150 can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

10. Can I prevent OBDII code P1709 in my 1999 Ford F150?

To prevent OBDII code P1709 in a 1999 Ford F150, it is important to perform regular maintenance on the transmission system, check for any warning signs of issues, and address them promptly.