Diagnosis Procedure
- CHECK FUSE
- Turn ignition switch OFF.
- Check 10A fuse [No. 30, located in fuse block (J/B)]NOTE: Refer to appropriate wiring information .
Is the inspection result normal?
YES
GO TO 2.
NO
If a fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
- CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect exhaust gas / outside odor detecting sensor connector.
- Turn ignition switch ON.
- Check voltage between exhaust gas / outside odor detecting sensor harness and ground.
+
-
Voltage
(Approx.)
Exhaust gas / outside odor detecting sensor
Connector
Terminal
E227
1
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 3.
NO
Repair harness or connector between exhaust gas / outside odor detecting sensor and fuse block (J/B).
- CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Check continuity between exhaust gas / outside odor detecting sensor harness connector and ground.
Exhaust gas / outside odor detecting sensor
--
Continuity
Connector
Terminal
E227
2
Ground
Yes
Is the inspection result normal?
YES
GO TO 4.
NO
Repair harness or connector.
- CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR SIGNAL CIRCUIT
- Connect exhaust gas / outside odor detecting sensor connector.
- Turn ignition switch ON.
- Check voltage between A/C auto amp.harness connector and ground.
+
-
Voltage
(Approx.)
A/C auto amp.
Connector
Terminal
M50
30
Ground
Battery voltage
Is the inspection result normal?
YES
Replace A/C auto amp. Refer to Removal and Installation .
NO
GO TO 5.
- CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR SIGNAL CIRCUIT FOR OPEN
- Turn ignition switch OFF.
- Disconnect exhaust gas / outside odor detecting sensor connector and A/C auto amp.connector.
- Check continuity between exhaust gas / outside odor detecting sensor harness connector and A/C auto amp. connector.
Exhaust gas / outside odor detecting sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
E227
3
M50
30
Yes
Is the inspection result normal?
YES
GO TO 6.
NO
Repair harness or connector.
- CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR SIGNAL CIRCUIT FOR GROUND SHORT
Check continuity between exhaust gas / outside odor detecting sensor harness connector and ground.
Exhaust gas / outside odor detecting sensor
--
Continuity
Connector
Terminal
E227
3
Ground
No
Is the inspection result normal?
YES
GO TO 7.
NO
Repair harness or connector.
- CHECK EXHAUST GAS / OUTSIDE ODOR DETECTING SENSOR SIGNAL CIRCUIT FOR POWER SHORT
Check voltage between exhaust gas / outside odor detecting sensor harness and ground.
+
-
Voltage
(Approx.)
Exhaust gas / outside odor detecting sensor
Connector
Terminal
E227
3
Ground
0 V
Is the inspection result normal?
YES
Replace exhaust gas / outside odor detecting sensor. Refer to Removal and Installation .
NO
Repair harness or connector.