AutoCodes – Nissan – B2604 Nissan

B2604 Nissan Code - Park/Neutral Position Switch

Quick Answer

The Body Control Module (BCM) confirms the shift position with the following 4 signals: CVT selector lever, Park/Neutral Position (PNP) Switch, P position signal from Intelligent Power Distribution Module Engine Room (IPDM E/R)(CAN), P position signal from Transmission Control Module (TCM) (CAN). Common causes include Faulty Park/Neutral Position Switch, Park/Neutral Position Switch harness is open or shorted, Park/Neutral Position Switch circuit 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: B2604 Nissan indicates Park/Neutral Position Switch.
Common causes: Common causes include Faulty Park/Neutral Position Switch, Park/Neutral Position Switch harness is open or shorted, Park/Neutral Position Switch circuit 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 38,620

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 Jan 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2604 Nissan Description

The Body Control Module (BCM) confirms the shift position with the following 4 signals: CVT selector lever, Park/Neutral Position (PNP) Switch, P position signal from Intelligent Power Distribution Module Engine Room (IPDM E/R)(CAN), P position signal from Transmission Control Module (TCM) (CAN). The Diagnostic Trouble Code (DTC) sets when the BCM detects the following status for 500 ms or more when the ignition switch is in the ON position P/N switch indicates the vehicle is in P or N shift position. The signal from TCM indicates the vehicle is in forward or reverse gear and P/N switch indicates the vehicle is in forward or reverse gear. The signal from TCM indicates vehicle is in P or N.

OBDII Code B2604 Nissan - Park/Neutral Position Switch - AutoCodes.com — B2604 Nissan Code - Park/Neutral Position Switch

What does this mean?

What are the Possible Causes of the DTC B2604 Nissan?

Faulty Park/Neutral Position Switch
Park/Neutral Position Switch harness is open or shorted
Park/Neutral Position Switch circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC B2604 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 B2604 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.

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Need Help with the 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 B2604 Nissan Code

1. What are the common symptoms of OBDII code B2604 (Nissan) related to the Park/Neutral Position Switch?

- Common symptoms include issues starting the vehicle, inability to shift out of Park, and the engine not cranking.

2. What are the possible causes of OBDII code B2604 in a Nissan vehicle?

- The code B2604 in a Nissan is often caused by a faulty Park/Neutral Position Switch, wiring issues, or a failed transmission range sensor.

3. How can I diagnose the Park/Neutral Position Switch issue causing OBDII code B2604 in my Nissan?

- You can diagnose the issue by checking the switch for proper operation, inspecting the wiring for any damage, and testing the transmission range sensor.

4. Can a faulty Park/Neutral Position Switch be repaired, or does it need to be replaced?

- In most cases, a faulty Park/Neutral Position Switch needs to be replaced to resolve the OBDII code B2604 issue in a Nissan vehicle.

5. Are there any tips for repairing the Park/Neutral Position Switch on a Nissan experiencing OBDII code B2604?

- When replacing the Park/Neutral Position Switch, ensure to follow the manufacturer's guidelines, properly adjust the switch, and clear the error code after installation.

6. Can a DIY enthusiast fix the OBDII code B2604 related to the Park/Neutral Position Switch in a Nissan?

- While some DIYers may have the skills to replace the Park/Neutral Position Switch, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

7. Will driving with OBDII code B2604 (Nissan) cause any long-term damage to the vehicle?

- Continuously driving with OBDII code B2604 related to the Park/Neutral Position Switch can lead to further transmission problems and potential safety issues, so prompt repair is advised.

8. Is it safe to continue driving my Nissan if the OBDII code B2604 is triggered due to the Park/Neutral Position Switch?

- It is not advisable to drive the vehicle if the OBDII code B2604 is triggered, as it can cause safety hazards and potential transmission failure.

9. Can a malfunctioning Park/Neutral Position Switch affecting OBDII code B2604 impact the fuel efficiency of a Nissan?

- A Park/Neutral Position Switch issue causing OBDII code B2604 may not directly impact fuel efficiency, but it can lead to other operational problems that indirectly affect overall vehicle performance.

10. How much can I expect to pay for repairing the Park/Neutral Position Switch issue causing OBDII code B2604 in my Nissan?

- The cost of repairing the Park/Neutral Position Switch issue can vary depending on the extent of the problem, but it typically ranges from $150 to $400 including parts and labor.