[SOLVED] P1709 Code: Fixing Park/Neutral Position Switch Self-Test Range Issue

The automobile fault code P1709 indicates a problem with the ParkNeutral Position (PNP) switch. This can be identified by the Engine Light or Service Engine Soon Warning Light turning on. The cause of this fault code could be a faulty PNP switch, an open or shorted PNP switch harness, a poor electrical connection, or a faulty Powertrain Control Module (PCM).

To fix this issue, it is recommended to visually inspect the wiring harness and connectors, checking for any damaged components or broken, bent, pushed out, or corroded connector pins. The repair time for this issue is estimated to be around 1.0. It is important to address this fault code promptly to ensure proper functioning of the vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level6.67 (Out of 10)

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When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the automobile fault code: p1709.

  • The symptoms of the automobile fault code P1709 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code P1709 can be caused by a faulty ParkNeutral Position (PNP) switch, an open or shorted PNP switch harness, a poor electrical connection in the PNP switch, or a faulty Powertrain Control Module (PCM).

  • The fault code P1709 can be caused by the following: a faulty Park/Neutral Position (PNP) switch, an open or shorted harness for the Park/Neutral Position switch, a poor electrical connection for the Park/Neutral Position switch, or a faulty Powertrain Control Module (PCM).

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To fix the automobile fault code p1709, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1709, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the diagnosis and fixing cost of the automobile fault code p1709 are the estimated repair time of 1.0 hour and the average hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P1709 fault code refers to a problem with the ParkNeutral Position (PNP) Switch in your automobile. This switch is responsible for completing the start circuit in PARK and NEUTRAL, the back-up lamp circuit in REVERSE, and a neutral sense circuit.

It also helps determine the position of the manual lever (P, R, N, (D), 2, 1) by opening and closing a set of four switches.

When the P1709 code is triggered, it means that the voltage from the ParkNeutral Position Switch is higher than it should be when it should actually be low. This issue is detected by the Powertrain Control Module (PCM) in your vehicle.

It is important to address this fault code promptly to ensure proper functioning of your vehicle’s start circuit and other related systems.

What are the possible causes for the automobile fault code P1709 and how can I visually inspect them?

If you’re seeing the engine light on or the service engine soon warning light, the fault code P1709 could be the culprit. This code is often caused by a faulty Park/Neutral Position (PNP) switch, an open or shorted PNP switch harness, a poor electrical connection in the PNP switch, or a faulty Powertrain Control Module (PCM). To visually inspect these possible causes, check the wiring harness and connectors related to the PNP switch. Look for any damaged components and examine the connector’s pins for any signs of being broken, bent, pushed out, or corroded.

How does a faulty Park/Neutral Position (PNP) switch contribute to the engine light being ON and what steps can I take to fix it?

If you notice that your engine light is ON or you see a Service Engine Soon Warning Light, it could be due to a faulty Park/Neutral Position (PNP) switch. This switch can cause the engine light to come on if it is not functioning properly. To fix this issue, you can start by checking the possible causes mentioned above. Take a close look at the wiring harness and connectors, making sure there are no visible signs of damage. Additionally, check for any broken, bent, pushed out, or corroded pins in the connectors.

What should I do if I find damaged components or broken, bent, pushed out, or corroded connector’s pins while inspecting the wiring harness and connectors for the P1709 fault code?

If you come across damaged components or broken, bent, pushed out, or corroded connector’s pins while inspecting the wiring harness and connectors for the P1709 fault code, there are a few steps you can take to address the issue. First, visually inspect the related wiring harness and connectors. Look for any signs of damage or corrosion. If you find any damaged components or connector pins, they will need to be repaired or replaced. This will help ensure a proper electrical connection and resolve the issue.

p1709 error fault code explained

If your engine light is on and you’re getting the P1709 fault code, it could be due to a faulty ParkNeutral Position (PNP) switch, an open or shorted PNP switch harness, a poor electrical connection, or a faulty Powertrain Control Module (PCM).

To fix this issue, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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