Diagnosis Procedure

EXHAUST GAS/OUTSIDE ODOR DETECTING SENSOR


Diagnosis Procedure

1.ADJUST EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR SENSITIVITY
1. Turn ignition switch ON.
2. Adjust the exhaust gas / outside odor detecting sensor sensitivity. Exhaust Gas/Outside Odor Detecting Sensor Sensitivity Adjustment Function With Plasmacluster System.
Are the symptoms solved?
YES - INSPECTION END
NO - GO TO 2.
2.CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect exhaust gas / outside odor detecting sensor connector.
3. Turn ignition switch ON.
4. Check voltage between exhaust gas / outside odor detecting sensor harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair harness or connector between exhaust gas / outside odor detecting sensor and fuse.
3.CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR GROUND CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector.
3. Check continuity between exhaust gas / outside odor detecting sensor harness connector and unified meter and A/C amp. harness connector.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair harness or connector.
4.CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR SIGNAL CIRCUIT
1. Reconnect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between exhaust gas / outside odor detecting sensor harness connector and ground using an oscilloscope.





Is the inspection result normal?
YES - Replace exhaust gas / outside odor detecting sensor. Removal and Installation.
NO - GO TO 5.
5.CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector.
3. Check continuity between exhaust gas / outside odor detecting sensor harness connector and unified meter and A/C amp. harness connector.





Is the inspection result normal?
YES - GO TO 6.
NO - Repair harness or connector.
6.CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR SIGNAL CIRCUIT FOR SHORT
Check continuity between exhaust gas / outside odor detecting sensor harness connector and ground.





Is the inspection result normal?
YES - Replace unified meter and A/C amp. Removal and Installation.
NO - Repair harness or connector.