Component Inspection
- INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES: Go to 2.
NO: Go to 3.
- CHECK HEATED OXYGEN SENSOR 3
With CONSULT-III
CAUTION: Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.- Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-III.
- Start engine and warm it up to the normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- Start the engine and drive vehicle at a speed of 80 km/h (50 MPH) or more for at least 3 consecutive minutes.NOTE: Keep the vehicle speed as steady as possible during the cruising.
- Select "FUEL INJECTION" in "ACTIVE TEST" mode, and select "HO2S3 (B1)" as the monitor item with CONSULT-III.
- Check "HO2S3 (B1)" at idle speed when adjusting "FUEL INJECTION" to ±25%.
"HO2S3 (B1)" should be above 0.68 V at least once when the "FUEL INJECTION" is +25% .
"HO2S3 (B1)" should be below 0.18 V at least once when the "FUEL INJECTION" is -25% .
Is the inspection result normal?
YES: INSPECTION END
NO: Go to 6.
- CHECK HEATED OXYGEN SENSOR 3-I
Without CONSULT-III
CAUTION: Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.- Start engine and warm it up to the normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- Start the engine and drive vehicle at a speed of 80 km/h (50 MPH) or more for at least 3 consecutive minutes.NOTE: Keep the vehicle speed as steady as possible during the cruising.
- Check the voltage between ECM harness connector terminals under the following condition.
VOLTAGE REFERENCE CHARTECM Condition Voltage Connector Terminal Connector Terminal F8 34 (HO2S3 signal) F8 35 (Sensor ground) Revving up to 4, 000 RPM under no load at least 10 times The voltage should be above 0.68 V at least once during this procedure. The voltage should be below 0.18 V at least once during this procedure. Is the inspection result normal?
YES: INSPECTION END
NO: Go to 4.
- CHECK HEATED OXYGEN SENSOR 3-II
- Keep vehicle at idling for 10 minutes.
- Check the voltage between ECM harness connector and ground under the following condition.
VOLTAGE REFERENCE CHARTECM Condition Voltage Connector Terminal Connector Terminal F8 34 (HO2S3 signal) F8 35 (Sensor ground) Revving up to 4, 000 RPM under no load at least 10 times The voltage should be above 0.68 V at least once during this procedure. The voltage should be below 0.18 V at least once during this procedure. Is the inspection result normal?
YES: INSPECTION END
NO: Go to 5.
- CHECK HEATED OXYGEN SENSOR 3-III
Check the voltage between ECM harness connector and ground under the following condition.
VOLTAGE REFERENCE CHARTECM Condition Voltage Connector Terminal Connector Terminal F8 34 (HO2S3 signal) F8 35 (Sensor ground) Coasting from 80 km/h (50 MPH) in D position The voltage should be above 0.68 V at least once during this procedure. The voltage should be below 0.18 V at least once during this procedure. Is the inspection result normal?
YES: INSPECTION END
NO: Go to 6.
- REPLACE HEATED OXYGEN SENSOR 3
Replace heated oxygen sensor 3. Refer to " EXPLODED VIEW ".
CAUTION:
- Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
- Before installing new heated oxygen sensor, clean exhaust system threads using oxygen sensor thread cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant (commercial service tool).
INSPECTION END