AutoCodes – Nissan – P0643 2011 Nissan Rogue

P0643 2011 Nissan Rogue Code - Sensor Power Supply Circuit Short

Quick Answer

The control module has 2 internal 5-volt reference buses called "5-volt reference 1" and"5-volt reference 2". Common causes include Faulty Engine Control Module (ECM), ECM harness is open or shorted, ECM 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: P0643 2011 Nissan Rogue indicates Sensor Power Supply Circuit Short.
Common causes: Common causes include Faulty Engine Control Module (ECM), ECM harness is open or shorted, ECM 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 2,746

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 May 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0643 2011 Nissan Rogue Description

The control module has 2 internal 5-volt reference buses called "5-volt reference 1" and"5-volt reference 2". Each reference bus provided 5-volt reference circuit for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to the reference bus. The control module monitors the voltage on the 5-volt reference buses.

OBDII Code P0643 2011 Nissan Rogue - Sensor Power Supply Circuit Short - AutoCodes.com — P0643 2011 Nissan Rogue Code - Sensor Power Supply Circuit Short

What does this mean?

What are the Possible Causes of the DTC P0643 2011 Nissan Rogue?

Faulty Engine Control Module (ECM)
ECM harness is open or shorted
ECM circuit poor electrical connection
Shorted sensor on 5 volt circuit
Accelerator pedal position sensor (APP sensor 1)
Power steering pressure sensor
EVAP control system pressure sensor
Refrigerant pressure sensor

How to Fix the DTC P0643 2011 Nissan Rogue?

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 P0643 2011 Nissan Rogue 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 P0643 2011 Nissan Rogue code?

Need more information on how to fix the P0643 2011 Nissan Rogue code? Get Access to Factory Service Manuals

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 P0643 2011 Nissan Rogue Code

1. What does OBDII code P0643 mean on a 2011 Nissan Rogue?

The code P0643 indicates a problem with the Sensor Power Supply Circuit Short in the vehicle.

2. What are the common symptoms of a Sensor Power Supply Circuit Short in a 2011 Nissan Rogue?

Common symptoms include issues with engine performance, rough idling, stalling, and problems with starting the vehicle.

3. What are the possible causes of OBDII code P0643 in a 2011 Nissan Rogue?

Possible causes of this code include a short circuit in the sensor power supply circuit, damaged wiring or connectors, or a faulty sensor.

4. How can I diagnose a Sensor Power Supply Circuit Short in my 2011 Nissan Rogue?

Diagnosing this issue typically involves using a multimeter to test the sensor power supply circuit and checking for any visible signs of wiring damage or corrosion.

5. Can I drive my 2011 Nissan Rogue with the P0643 trouble code?

It is not recommended to drive your vehicle with the P0643 code present, as it can lead to potential damage to other components and affect the overall performance of the vehicle.

6. How can I repair the Sensor Power Supply Circuit Short in my 2011 Nissan Rogue?

Repairing this issue may involve replacing damaged wiring, connectors, or the sensor itself. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

7. Is it possible to reset the OBDII code P0643 in a 2011 Nissan Rogue?

Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue causing the code is not addressed, it is likely to reappear.

8. Can a DIY enthusiast fix the Sensor Power Supply Circuit Short in a 2011 Nissan Rogue?

While some basic troubleshooting steps can be taken by a DIY enthusiast, diagnosing and repairing the exact cause of the issue may require specialized tools and expertise best handled by a professional mechanic.

9. How much does it cost to fix the Sensor Power Supply Circuit Short in a 2011 Nissan Rogue?

The cost of repairing this issue can vary depending on the exact cause of the problem, parts needed for replacement, and labor charges. It is advisable to get a few quotes from different mechanics to compare prices.

10. Are there any preventive measures to avoid OBDII code P0643 in a 2011 Nissan Rogue?

Regular maintenance checks, avoiding rough driving conditions, and promptly addressing any warning signs related to the vehicle's performance can help prevent issues leading to the Sensor Power Supply Circuit Short code.