Engine-Codes - Nissan - P0643 2008 Nissan Rogue

P0643 2008 Nissan Rogue Code - Sensor Power Supply Circuit Short

- Code Popularity: 2,341 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P0643 2008 Nissan Rogue?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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
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How to Fix the DTC P0643 2008 Nissan Rogue?

Check 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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0643 2008 Nissan Rogue code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher than expected

What are Code Possible Symptoms?

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

What Does the P0643 2008 Nissan Rogue Code Mean?

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.

P0643 2008 Nissan Rogue Code - Sensor Power Supply Circuit Short

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