Nissan Maxima Service and Repair Manual: B2581, B2582 intake sensor

Description

Intake Sensor

Nissan Maxima. Intake Sensor

  • The intake sensor is located on the evaporator.
  • It converts air temperature after it passes through the evaporator into a resistance value which is then input to the A/C auto amp.

Intake Sensor Circuit

Nissan Maxima. Intake Sensor Circuit

DTC Logic

DTC DETECTION LOGIC

NOTE: If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC- 30, "DTC Logic" or HAC-31, "DTC Logic".

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT

  1. Using CONSULT, perform "SELF-DIAGNOSIS RESULTS" of HVAC.
  2. Check if any DTC No. is displayed in the self-diagnosis results.

NOTE: If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010.

Diagnosis Procedure

1.CHECK INTAKE SENSOR POWER SUPPLY

  1. Disconnect intake sensor connector.
  2. Turn ignition switch ON.
  3. Check voltage between intake sensor harness connector M69 terminal 1 and ground.

Nissan Maxima. CHECK INTAKE SENSOR POWER SUPPLY

1 - Ground: Approx. 5V

2.CHECK CONTINUITY BETWEEN INTAKE SENSOR AND A/C AUTO AMP.

  1. Turn ignition switch OFF.
  2. Disconnect A/C auto amp. connector.
  3. Check continuity between intake sensor harness connector M69 (A) terminal 2 and A/C auto amp. harness connector M37 (B) terminal 37.

Nissan Maxima. CHECK CONTINUITY BETWEEN INTAKE SENSOR AND A/C AUTO AMP.

2 - 37: Continuity should exist.

3.CHECK INTAKE SENSOR

Check intake sensor.

4.CHECK CONTINUITY BETWEEN INTAKE SENSOR AND A/C AUTO AMP.

  1. Turn ignition switch OFF.
  2. Disconnect A/C auto amp. connector.
  3. Check continuity between intake sensor harness connector M69 (A) terminal 1 and A/C auto amp. harness connector M37 (B) terminal 16.

Nissan Maxima. CHECK CONTINUITY BETWEEN INTAKE SENSOR AND A/C AUTO AMP.

1 - 16: Continuity should exist.

  1. Check continuity between intake sensor harness connector M69 (A) terminal 1 and ground

1 - Ground: Continuity should not exist.

Component Inspection

1.CHECK INTAKE SENSOR

  1. Turn ignition switch OFF.
  2. Disconnect intake sensor connector.
  3. Check resistance between intake sensor terminals

Nissan Maxima. CHECK INTAKE SENSOR

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