P1706Manufacturer-specific code

P1706 Code: Park/Neutral Position Switch (Nissan)

On Nissan and Infiniti vehicles, the P1706 code points to the park/neutral position switch. The engine may not start in P or N and the reverse lights may not work. Other brands may define this number differently.

Severity
Medium
Can I keep driving?
Yes, no immediate risk
Estimated cost
$40 to $250
Difficulty
Easy
System
Transmission
Applies to
Depends on the manufacturer

Common in: Nissan

Updated Reviewed by Renzo Chacca

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What the P1706 code means

P1706 is a manufacturer-specific code: the 1 in the second position means each automaker defines what it means, not the generic SAE standard. The most widespread definition is the one used by Nissan and Infiniti. If your vehicle is another brand, confirm the code text with a scan tool that supports that manufacturer.

ManufacturerMeaning of P1706
Nissan and InfinitiPark/neutral position switch

The park/neutral position (PNP) switch tells the computer whether the lever is in P or N, to allow starting and adjust the idle.

The computer sets the P1706 code when the switch signal does not agree with other signals, such as vehicle speed.

Before you start repairs, confirm the make, model, year and engine. With manufacturer codes, the same number can change even between engines from the same brand.

P1706 code symptoms

  • The engine will not start in P or N.
  • Reverse lights that do not work.
  • Check engine light on.

Likely causes of the P1706 code

  1. Switch out of adjustment. Confirm it with the tests in the diagnosis section.
  2. Failed switch. Confirm it with the tests in the diagnosis section.
  3. Shift cable. Look for wear, rubbing and slack.
  4. Connector. Check the lock tab, the pins and any sign of moisture or corrosion.

How to diagnose the P1706 code step by step

  1. Check starting in P and N.
  2. Read the switch state on the scan tool.
  3. Adjust the switch and test again.

How to fix the P1706 code

  • Adjust or replace the switch.

Technical reference data

  • The switch is on the side of the transmission.
  • P1xxx codes are manufacturer-specific: confirm the definition with a scan tool that supports your brand.
  • Reference values: check the manufacturer data for your vehicle.

Brand-specific notes

If the car only starts when you wiggle the lever, the switch adjustment is the first suspect, and it is a cheap one.

P1706 on Nissan

Common on the Sentra, Tsuru, Tiida, Versa, March, X-Trail, Altima and Frontier.

If your vehicle is another brand, check the table above for the meaning its manufacturer gives this code and confirm it with a compatible scan tool.

Frequently asked questions about P1706

What does the P1706 code mean on a Nissan?
It points to the park/neutral position switch. The reverse lights may not work.
Does P1706 mean the same thing on every brand?
No. It is a manufacturer-specific code, so on other brands it may not exist or may mean something different. Confirm it with a scan tool that supports your make.
Can I drive with a P1706 code?
Yes. With a P1706 code the car usually drives, but check that the reverse lights work and that it starts reliably in P and N.
How much does it cost to fix P1706?
Roughly $40 to $250 on a Nissan. An adjustment is cheap, while a new switch with labor costs more.
Will a P1706 code clear itself?
Not while the switch is out of adjustment or failed. After a repair, clear the code and confirm the car starts in P and N.
What is the most common cause of P1706?
A switch that is out of adjustment or has failed. The shift cable and the connector are the next things to check.

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Questions about the P1706 code

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