P1031 NISSAN Possible Causes
- Faulty Air/Fuel Ratio Sensor 1, Bank 1
- Air/Fuel Ratio Sensor 1 harness is open or shorted
- Poor electrical connection in Air/Fuel Ratio Sensor 1 circuit
How is P1031 NISSAN Code Repaired?
Start by checking 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.
Technical Notes
What Does It Mean?
There is a service bulletin for the following models:
2005-2006 Nissan Altima
2005-2006 Nissan Altima Factory Service Bulletin OBDII Code P1031
2004 Nissan Maxima with 5-speed automatic transmission
2004 Nissan Quest with 5-speed automatic transmission
Nissan Maxima 2004, Quest Factory Service Bulletin P1031 OBDII Code
2004 Nissan Maxima with manual transmission or 4-speed automatic transmission
2004 Nissan Quest with 4-speed automatic transmission
Nissan Maxima 2004, Quest Factory Service Bulletin P1031 OBDII Code
2004 Nissan Armada
2004 Nissan Titan
2004 Nissan Armada/Titan Factory Service Bulletin OBDII Code P1031
When is the Code Detected?
The current amperage in the Heated Air/Fuel Ratio Sensor 1 heater circuit is outside the normal range. A voltage signal that is too low is sent to the Engine Control Module (ECM) via the Heated Air/Fuel Ratio Sensor 1 heater.
Possible Symptoms
Check Engine Light on (or Service Engine Soon warning light)
P1031 NISSAN Meaning
The Engine Control Module (ECM) performs ON/OFF service control of the Heated Air/Fuel Ratio Sensor 1 heater corresponding to the engine operating condition to maintain the A/F Sensor 1 element temperature within the specified range.