With Color Display

B2581, B2582 INTAKE SENSOR





Description
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 etc.

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. With Color Display or With Color Display.






DTC CONFIRMATION PROCEDURE
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
1. Using CONSULT-III, 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. With Color Display or With Color Display.
Is DTC No."B2581" or "B2582" displayed?
YES - Perform trouble diagnosis for the intake sensor. With Color Display.
NO - Inspection End.




Diagnosis Procedure
Regarding Wiring Diagram information, With Navi, "Wiring Diagram - Air Conditioner Control - With
NAVI" or Without Navi.
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.

1 - Ground : Approx. 5V

Is the inspection result normal?
YES - GO TO 2.
NO - GO TO 4.
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.

2 - 37 : Continuity should exist.

Is the inspection result normal?
YES - GO TO 3.
NO - Repair harness or connector.
3.CHECK INTAKE SENSOR
Check intake sensor. With Color Display.
Is the inspection result normal?
YES - Replace A/C auto amp. With Color Display.
NO - Replace intake sensor. With Color Display.
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.

1 - 16 : Continuity should exist.

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

1 - Ground : Continuity should not exist.

Is the inspection result normal?
YES - Replace A/C auto amp. With Color Display.
NO - Repair harness or connector.




Component Inspection
1.CHECK INTAKE SENSOR
1. Turn ignition switch OFF.
2. Disconnect intake sensor connector.
3. Check resistance between intake sensor terminals.





Is the inspection result normal?
YES - Inspection End.
NO - Replace intake sensor. With Color Display.