Intake Sensor

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

The intake sensor is located on the heater and cooling unit. It converts temperature of air after it passes through the evaporator into a resistance value which is then input to the A/C control unit.

After disconnecting intake sensor harness connector, measure resistance between terminals 1 and 2 at sensor harness side, using Fig 1.

Fig 1: Intake Sensor Circuit Temperature Resistance Table

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Locating Intake Sensor Connector

Courtesy of NISSAN MOTOR CO., U.S.A.

If NG, replace intake sensor.