Diagnostic Procedure

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.

SYMPTOM: Intake sensor circuit is open or shorted.

Fig 1: Identifying Intake Sensor Circuit

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

CHECK INTAKE SENSOR CIRCUIT BETWEEN INTAKE SENSOR AND BODY GROUND
Disconnect intake sensor harness connector.

Fig 2: Intake Sensor And Body Ground Continuity Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Intake Sensor Circuit Between Intake Sensor And Body Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 2.
2. NG: Repair harness or connector.
CHECK INTAKE SENSOR CIRCUIT BETWEEN INTAKE SENSOR AND A/C CONTROL UNIT
Disconnect A/C control unit harness connector.

Fig 4: Intake Sensor And A/C Control Unit Continuity Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Checking Intake Sensor Circuit Between Intake Sensor And A/C Control Unit
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK GO TO 3.
2. NG Repair harness or connector.
CHECK INTAKE SENSOR
Refer to "INTAKE SENSOR ".

OK or NG
1. OK Replace A/C control unit.
2. NG Replace intake sensor.