Confirmation Procedure
- PRECONDITIONING
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
Will CONSULT be used?
YES
GO TO 2.
NO
GO TO 4.
- PERFORM DTC CONFIRMATION PROCEDURE
WITH CONSULT
TESTING CONDITION:
For better results, perform "DTC WORK SUPPORT" at a temperature of 0 to 30 deg. C (32 to 86 deg. F).
- Start engine and warm it up to the normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Restart 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 "DATA MONITOR" mode with CONSULT.
- Check that "COOLAN TEMP/S" indicates more than 70 deg. C (158 deg. F).
If not, warm up engine and go to next step when "COOLAN TEMP/S" indication reaches 70 deg. C (158 deg. F).
- Open engine hood.
- Select "HO2S2 (B1) P1147" (for DTC P2271) of "HO2S2" in "DTC WORK SUPPORT" mode with CONSULT.
- Follow the instruction of CONSULT display.NOTE: It will take at most 10 minutes until "COMPLETED" is displayed.
- Touch "SELF-DIAG RESULTS".
Which is displayed on CONSULT screen?
OK
INSPECTION END
NG
Refer to DTC Diagnosis Procedure .
CAN NOT BE DIAGNOSED
GO TO 3.
- PERFORM DTC CONFIRMATION PROCEDURE AGAIN
- Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
- Perform DTC confirmation procedure again.
GO TO 2.
- PERFORM COMPONENT FUNCTION CHECK-I NOTE: Use component function check to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st trip DTC might not be confirmed.
WITH GST
- Start engine and warm it up to the normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Restart 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 conditions.
ECM
Condition
Voltage
+
-
Connector
Terminal
Connector
Terminal
F92
84
F91
43
Revving up to 4, 000 RPM under no load at least 10 times
The voltage should be above 0.74 V at least once during this procedure.
Is the inspection result normal?
YES
INSPECTION END
NO
GO TO 5.
- PERFORM COMPONENT FUNCTION CHECK-II
Check the voltage between ECM harness connector terminals under the following conditions.
ECM
Condition
Voltage
+
-
Connector
Terminal
Connector
Terminal
F92
84
F91
43
Keeping engine at idle for 10 minutes
The voltage should be above 0.74 V at least once during this procedure.
Is the inspection result normal?
YES
INSPECTION END
NO
GO TO 6.
- PERFORM COMPONENT FUNCTION CHECK-III
Check the voltage between ECM harness connector terminals under the following conditions.
ECM
Condition
Voltage
+
-
Connector
Terminal
Connector
Terminal
F92
84
F91
43
Coasting from 80 km/h (50 MPH) with selector lever in the D position
The voltage should be above 0.74 V at least once during this procedure.
Is the inspection result normal?
YES
INSPECTION END
NO
Refer to DTC Diagnosis Procedure .