Engine-Codes - Nissan - P0850 2009 NISSAN ALTIMA SEDAN

P0850 2009 NISSAN ALTIMA SEDAN - Park/Neutral Switch

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P0850 2009 NISSAN ALTIMA SEDAN Possible Causes

  • Misadjusted Park/Neutral Switch
  • Faulty Park/Neutral Switch
  • Park/Neutral Switch harness is open or shorted
  • Park/Neutral Switch circuit poor electrical connection
  • Combination meter
  • TCM (CVT models)

How is the P0850 2009 NISSAN ALTIMA SEDAN code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

For the CVT transmission the Park/Neutral Switch is located inside the shifter assembly, for the manual transmission it is located on the transmission (see picture)

What is the cost to diagnose the P0850 2009 NISSAN ALTIMA SEDAN code

Labor: 1.0

The cost to diagnose the P0850 2009 NISSAN ALTIMA SEDAN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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When is the code detected?

The signal of the park/neutral position (PNP) switch is not changed in the process of engine starting and driving.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0850 2009 NISSAN ALTIMA SEDAN Meaning

When the shift position is P or N, Park/Neutral Position (PNP) switch is turned ON. The Engine Control Module (ECM) detects the position because the continuity of the line (the ON signal) exists.
The Park/Neutral Position (PNP) switch assembly also indicates a transmission range switch to detect shift lever position.

More Information

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