AutoCodes – Nissan – P2846 Nissan

P2846 Nissan Code - Shift Fork 'B' Position Sensor Incorrect Neutral Position Indicated

Quick Answer

There are two electric motors used to shift the gears in the transmission, on for gears 1-3-5 and one for gears R-2-4-6. Common causes include Outdated Transmission Control Module (TCM) program (Reprogram TCM), Faulty Transmission Control Module (TCM), Faulty Transmission Assembly. 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: P2846 Nissan indicates Shift Fork 'B' Position Sensor Incorrect Neutral Position Indicated.
Common causes: Common causes include Outdated Transmission Control Module (TCM) program (Reprogram TCM), Faulty Transmission Control Module (TCM), Faulty Transmission Assembly.
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 1,350

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2846 Nissan Description

There are two electric motors used to shift the gears in the transmission, on for gears 1-3-5 and one for gears R-2-4-6. The gear shifting is made by two shift drums connected to shift motor pinion via two ideal gears. The maximum shift force is 1500N (337 lb). The motors are integrated in the Transmission Control Module (TCM) and work independently of each other.

OBDII Code P2846 Nissan - Shift Fork 'B' Position Sensor Incorrect Neutral Position Indicated - AutoCodes.com — P2846 Nissan Code - Shift Fork 'B' Position Sensor Incorrect Neutral Position Indicated

What does this mean?

What are the Possible Causes of the DTC P2846 Nissan?

Outdated Transmission Control Module (TCM) program (Reprogram TCM)
Faulty Transmission Control Module (TCM)
Faulty Transmission Assembly

How to Fix the DTC P2846 Nissan?

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 P2846 Nissan 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 P2846 Nissan code?

Need more information on how to fix the P2846 Nissan code? Get Access to Factory Service Manuals

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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 P2846 Nissan Code

1. What are the common symptoms of OBDII code P2846 in a Nissan?

The common symptoms of OBDII code P2846 in a Nissan include difficulty shifting gears, transmission slipping, and the transmission staying in neutral.

2. What does the OBDII code P2846 in a Nissan indicate?

The OBDII code P2846 in a Nissan indicates that the Shift Fork 'B' Position Sensor is indicating an incorrect neutral position.

3. What are the possible causes of OBDII code P2846 in a Nissan?

Possible causes of OBDII code P2846 in a Nissan include a faulty Shift Fork 'B' Position Sensor, wiring issues, or a malfunction in the transmission control module.

4. How can I diagnose the OBDII code P2846 in my Nissan?

Diagnosing OBDII code P2846 in a Nissan involves using a diagnostic scanner to read the code and inspecting the Shift Fork 'B' Position Sensor and related wiring for any signs of damage or malfunction.

5. Is it safe to continue driving my Nissan with OBDII code P2846?

It is not recommended to continue driving your Nissan with OBDII code P2846, as it can lead to further damage to the transmission and affect the vehicle's performance.

6. How can I repair OBDII code P2846 in my Nissan?

Repairing OBDII code P2846 in a Nissan may involve replacing the Shift Fork 'B' Position Sensor, repairing any damaged wiring, or reprogramming the transmission control module.

7. Can I reset the OBDII code P2846 in my Nissan by disconnecting the battery?

While disconnecting the battery may temporarily clear the code, it is not a recommended method to reset OBDII code P2846 in a Nissan. Proper diagnosis and repair are necessary to address the underlying issue.

8. How much does it cost to fix OBDII code P2846 in a Nissan?

The cost to fix OBDII code P2846 in a Nissan can vary depending on the specific issue, parts needed, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.

9. Can OBDII code P2846 in a Nissan cause damage to other components?

If left unchecked, OBDII code P2846 in a Nissan can cause damage to the transmission components, leading to more extensive and costly repairs down the line.

10. Is OBDII code P2846 specific to Nissan vehicles only?

While OBDII code P2846 is commonly associated with Nissan vehicles, it may also appear in other makes and models with similar transmission systems.