P0051 2006 NISSAN PATHFINDER - Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit Low
P0051 2006 NISSAN PATHFINDER Possible Causes
- Faulty Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open shorted to ground
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit poor electrical connection
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit fuse
- Faulty Engine Control Module (ECM)
First diagnose P0051 2006 NISSAN PATHFINDER code
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 terminals.
Cost of diagnosing the P0051 2006 NISSAN PATHFINDER code
Labor: 1.0The cost of diagnosing the P0051 2006 NISSAN PATHFINDER code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the P0051 2006 NISSAN PATHFINDER code detected?The P0051 is set when the ECM detects an excessively low voltage through the heated oxygen sensor heater circuit
P0051 2006 NISSAN PATHFINDER Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0051 2006 Nissan Pathfinder DescriptionAir-Fuel Ratio (A/F) sensor need to reach a minimum operating temperature of 1200 degrees F to produce an accurate voltage signal. The faster the air-fuel ratio sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the air-fuel ratio sensor. The ECM controls the air-fuel ratio sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
P0051 2006 NISSAN PATHFINDER More InformationNeed more information on how to fix the P0051 2006 NISSAN PATHFINDER code?
Get Access to Factory Service Manuals
Need more help?Get the P0051 2006 Nissan Pathfinder code diagnosed by a professional: Find a repair shop in your area
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