 1.INSPECTION START
Do you have CONSULT-III? Do you have CONSULT-III? YES >>GO TO 2. NO >>GO TO 3.
 2.CHECK HEATED OXYGEN SENSOR 2
With CONSULT-III
- 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 engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
- Let engine idle for 1 minute.
- Select “FUEL INJECTION” in “ACTIVE TEST” mode, and select “HO2S2 (B1)/(B2)” as the monitor item with CONSULT-III.
- Check “HO2S2 (B1)/(B2)” at idle speed when adjusting “FUEL INJECTION” to ±25%.
 “HO2S2 (B1)/(B2)” should be above 0.70 V at least once when the “FUEL INJECTION” is +25%.“HO2S2 (B1)/(B2)” 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.
 3.CHECK HEATED OXYGEN SENSOR 2-I
Without CONSULT-III
- Start engine and warm it up to the normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
- Let engine idle for 1 minute.
- Check the voltage between ECM harness connector terminals under the following condition.
ECM
| Condition
| Voltage
| Connector
| +
| –
| Terminal
| Terminal
| F102
| 73 [HO2S2 (bank 1)]
| 70
| Revving up to 4,000 rpm under no load at least 10 times
| The voltage should be above 0.70 V at least once during this procedure. The voltage should be below 0.18 V at least once during this procedure.
| 77 [HO2S2 (bank 2)]
|
Is the inspection result normal?
YES >>INSPECTION END NO >>GO TO 4.
 4.CHECK HEATED OXYGEN SENSOR 2-II
Check the voltage between ECM harness connector terminals under the following condition. ECM
| Condition
| Voltage
| Connector
| +
| –
| Terminal
| Terminal
| F102
| 73 [HO2S2 (bank 1)]
| 70
| Keeping engine at idle for 10 minutes
| The voltage should be above 0.70 V at least once during this procedure. The voltage should be below 0.18 V at least once during this procedure.
| 77 [HO2S2 (bank 2)]
|
Is the inspection result normal? YES >>INSPECTION END NO >>GO TO 5.
 5.CHECK HEATED OXYGEN SENSOR 2-III
Check the voltage between ECM harness connector terminals under the following condition. ECM
| Condition
| Voltage
| Connector
| +
| –
| Terminal
| Terminal
| F102
| 73 [HO2S2 (bank 1)]
| 70
| Coasting from 80 km/h (50 MPH) in A position
| The voltage should be above 0.70 V at least once during this procedure. The voltage should be below 0.18 V at least once during this procedure.
| 77 [HO2S2 (bank 2)]
|
Is the inspection result normal? YES >>INSPECTION END NO >>GO TO 6.
 6.REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2. ■ CAUTION ■ - Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (1.6 ft) onto a hard surface such as a concrete floor; use a new one.
- Before installing new 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
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