B2581

B2581, B2582 INTAKE SENSOR

DTC Logic


DTC DETECTION LOGIC

NOTE:
- If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. CAN Comm Circuit.
- If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. Control Unit.






DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
1.Turn ignition switch ON.
2.Select "Self Diagnostic Result" mode of "HVAC" using CONSULT.
3.Check DTC.
Is DTC detected?
YES- .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK INTAKE SENSOR POWER SUPPLY

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





Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 2.

2. CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR OPEN

1.Turn ignition switch OFF.
2.Disconnect A/C auto amp. connector.
3.Check continuity between intake sensor harness connector and A/C auto amp. harness connector.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair harness or connector.

3. CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR GROUND SHORT

Check continuity between intake sensor harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair harness or connector.

4. CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR BATTERY SHORT

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





Is the inspection result normal?
YES- GO TO 7.
NO- Repair harness or connector.

5. CHECK INTAKE SENSOR GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect A/C auto amp. connector.
3.Check continuity between intake sensor harness connector and A/C auto amp. harness connector.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair harness or connector.

6. CHECK INTAKE SENSOR

Check intake sensor. .
Is the inspection result normal?
YES- GO TO 7.
NO- Replace intake sensor. Removal And Installation.

7. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
Is the inspection result normal?
YES- Replace A/C auto amp. Removal And Installation.
NO- Repair or replace malfunctioning parts.


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. Removal And Installation.