P1031
Powertrain Codes
P1031 - NISSAN - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
Possible Causes
- Air Fuel Ratio Sensor 1 circuit is open or shorted - Air Fuel Ratio Sensor 1 circuit electrical connection - Faulty Air Fuel Ratio Sensor 1 Bank 1
When 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.
Tech Notes
There is a service bulletin for the following models: 2005-2006 Nissan Altima 2005-2006 Nissan Altima Service Bulletin P1031 OBDII Code 2004 Nissan Armada 2004 Nissan Titan 2004 Nissan Armada/Titan Service Bulletin P1031 OBDII Code
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.