Inside Odor Detecting Sensor

INSIDE ODOR DETECTING SENSOR

Component Function Check


1. CHECK INSIDE ODOR DETECTING SENSOR FUNCTION

1.Operate fan switch. Set fan speed to 7th speed.
2.Check that voltage between A/C auto amp. vehicle side harness connector and body ground changes when cigarette smoke or similar substance is applied to air inlet.





Is the inspection result normal?
YES- INSPECTION END
NO- .


Diagnosis Procedure


1. CHECK INSIDE ODOR DETECTING SENSOR IGNITION POWER SUPPLY

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





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

2. CHECK FUSE

1.Turn ignition switch OFF.
2.10 A fuse [No. 3, located in fuse block (J/B)].
NOTE:
Fuse Block - Junction Box (J/B).
Is the inspection result normal?
YES- GO TO 3.
NO- Replace the fuse after replacing the applicable circuit.

3. CHECK INSIDE ODOR DETECTING SENSOR IGNITION POWER SUPPLY CIRCUIT FOR OPEN

1.Disconnect fuse block (J/B) connector.
2.Check continuity between inside odor detecting sensor harness connector and fuse block (J/B) harness connector.





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

4. CHECK INSIDE ODOR DETECTING SENSOR IGNITION POWER SUPPLY CIRCUIT FOR SHORT

1.Disconnect compressor connector, A/C auto amp. connector and ionizer connector.
2.Check continuity between inside odor detecting sensor harness connector and ground.





Is the inspection result normal?
YES- Check ignition power supply circuit. Ignition Power Supply.
NO- Repair harness or connector.

5. CHECK INSIDE ODOR DETECTING SENSOR GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between inside odor detecting sensor harness connector and ground.





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

6. CHECK INSIDE ODOR DETECTING SENSOR POWER SUPPLY

1.Turn ignition switch ON.
2.Check voltage between inside odor detecting sensor harness connector and ground.





Is the inspection result normal?
YES- GO TO 10.
NO- GO TO 7.

7. CHECK INSIDE ODOR DETECTING SENSOR POWER SUPPLY CIRCUIT FOR OPEN

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





Is the inspection result normal?
YES- GO TO 8.
NO- Repair harness or connector.

8. CHECK INSIDE ODOR DETECTING SENSOR POWER SUPPLY CIRCUIT FOR GROUND SHORT

Check continuity between inside odor detecting sensor harness connector and ground.





Is the inspection result normal?
YES- GO TO 9.
NO- Repair harness or connector.

9. CHECK INSIDE ODOR DETECTING SENSOR POWER SUPPLY CIRCUIT FOR BATTERY SHORT

1.Turn ignition switch ON.
2.Check voltage between inside odor detecting sensor harness connector and ground.





Is the inspection result normal?
YES- GO TO 12.
NO- Repair harness or connector.

10. CHECK INSIDE ODOR DETECTING SENSOR GROUND CIRCUIT

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





Is the inspection result normal?
YES- GO TO 11.
NO- Repair harness or connector.

11. CHECK INSIDE ODOR DETECTING SENSOR

Check inside odor detecting sensor. .
Is the inspection result normal?
YES- GO TO 12.
NO- Replace inside odor detecting sensor. Removal And Installation.

12. 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 INSIDE ODOR DETECTING SENSOR-I

1.Turn ignition switch OFF.
2.Disconnect inside odor detecting sensor connector.
3.Apply voltage between inside odor detecting sensor terminals 4 and 3, and wait for 3 minutes.
4.Check resistance between inside odor detecting sensor terminals while applying voltage.





NOTE:
Resistance value differs depending on measurement environment of the vehicle.
Is the inspection result normal?
YES- GO TO 2.
NO- Replace the inside odor detecting sensor. Removal And Installation.

2. CHECK INSIDE ODOR DETECTING SENSOR-II

Blow sensor portion of inside odor detecting sensor. Check that resistance value between inside odor detecting sensor terminals decreases.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace the inside odor detecting sensor. Removal And Installation.