Confirmation Procedure
DTC CONFIRMATION PROCEDURE
- PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
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GO TO 2.
- DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A
- Start engine and warm it up to the normal operating temperature.
- 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.
- Check 1st trip DTC.
Is 1st trip DTC detected?
YES>>
Refer to DTC Diagnosis Procedure .
NO-1>>
With CONSULT : GO TO 3.
NO-2>>
Without CONSULT : GO TO 5.
- DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-1
With CONSULT Test condition: For better results, perform "DTC WORK SUPPORT" at a temperature of 0 to 30°C (32 to 86°F).
- Turn ignition switch ON and select "DATA MONITOR" mode of "ENGINE" using CONSULT.
- Start engine and warm it up to the normal operating temperature.
- 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 that "COOLANT TEMP/S" indicates more than 70°C (158°F).
If not, warm up engine and go to next step when "COOLANT TEMP/S" indication reaches 70°C (158°F).
- Open engine hood.
- Select "HO2S2 (B1) P1146" of "HO2S2" in "DTC WORK SUPPORT" mode of "ENGINE" using 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-1>>
To check malfunction symptom before repair: Refer to Inspection .
OK-2>>
Confirmation after repair: INSPECTION END
NG>>
Refer to DTC Diagnosis Procedure .
CAN NOT BE DIAGNOSED>>
GO TO 4.
- DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-2
- Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
- Perform DTC confirmation procedure again.
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GO TO 3.
- PERFORM COMPONENT FUNCTION CHECK-1 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.
- Start engine and warm it up to the normal operating temperature.
- 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 F92 84 147 Revving up to 4, 000 RPM quickly under no load at least 10 times. (Depress and release the accelerator pedal as quickly as possible.) The voltage should be below 0.18 V at least once during this procedure.
Is the inspection result normal?
YES-1>>
To check malfunction symptom before repair: Refer to Inspection .
YES-2>>
Confirmation after repair: INSPECTION END
NO>>
GO TO 6.
- PERFORM COMPONENT FUNCTION CHECK-2
ECM Condition Voltage Connector + - Terminal F92 84 147 Keeping engine at idle for 10 minutes. The voltage should be below 0.18 V at least once during this procedure. Is the inspection result normal?
YES-1>>
To check malfunction symptom before repair: Refer to Inspection .
YES-2>>
Confirmation after repair: INSPECTION END
NO>>
GO TO 7.
- PERFORM COMPONENT FUNCTION CHECK-3 CAUTION:
Always drive vehicle at a safe speed.
ECM Condition Voltage Connector + - Terminal F92 84 147 Coasting from 80 km/h (50 MPH) in the D position. The voltage should be below 0.18 V at least once during this procedure. Is the inspection result normal?
YES-1>>
To check malfunction symptom before repair: Refer to Inspection .
YES-2>>
Confirmation after repair: INSPECTION END
NO>>
Refer to DTC Diagnosis Procedure .