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P1031 NISSAN

P1031 NISSAN - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1

Possible causes
- Faulty Air Fuel Ratio Sensor 1 Bank 1
- Air Fuel Ratio Sensor 1 harness is open or shorted
- Air Fuel Ratio Sensor 1 circuit poor electrical connection
Tech notes
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 w/ 5 Speed Automatic Transmission
2004 Nissan Quest w/ 5 Speed Automatic Transmission
2004 Nissan Maxima, Quest Factory Service Bulletin P1031 OBDII Code

2004 Nissan Maxima w/ Manual Transmission or 4 Speed Automatic Transmission
2004 Nissan Quest w/ 4 Speed Automatic Transmission
2004 Nissan Maxima, 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 (A/F) sensor 1 heater circuit is out of the normal range. An excessively low voltage signal is sent to Engine Control Module (ECM) through the heated air fuel ratio (A/F) sensor 1 heater.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1031 NISSAN Description
The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F) sensor 1 heater corresponding to the engine operating condition to keep the temperature of A/F sensor 1 element at the specified range.
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