Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Xterra and 2002 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0181 will set when a rationally incorrect voltage from FTT sensor is sent to ECM, compared with voltage signals from engine coolant temperature sensor and intake air temperature sensor. DTC P0182 will set when an excessively low voltage from FTT sensor is sent to ECM. DTC P0183 will set when an excessively high voltage from FTT sensor is sent to ECM. Possible causes are:
- FTT sensor circuit open or shorted.
- Defective FTT sensor.