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EC-902 < COMPONENT DIAGNOSIS > [MR18DE] P1144 HO2S1 Do you have CONSULT-III? YES >> GO TO 2. NO >> GO TO 3. 2. PERFORM DTC CONFIRMATION PROCEDURE 1. Start engine and warm it up to normal operating temperature. 2. Stop engine and wait at least 10 seconds. 3. Turn ignition switch ON and select “HO2S1 (B1) P1144” of “HO2S1” in “DTC WORK SUPPORT” mode 4. Touch “START”. 5. Start engine and let it idle for at least 3 minutes. 6. When the following conditions are met, “TESTING” will be displayed on the CONSULT-III screen. Maintain CAUTION: Always drive vehicle at a safe speed. If “TESTING” is not displayed after 5 minutes, retry from step 2. 7. Touch “SELF-DIAG RESULT” Which is displayed on CONSULT-III screen? OK >> INSPECTION END NG >> Go to 3. PERFORM COMPONENT FUNCTION CHECK With GST 1. Start engine and warm it up to normal operating temperature. 2. Set voltmeter probes between ECM harness connector terminals as follows under the following condition. NOTE: Is the inspection result normal? YES >> INSPECTION END NO >> Go to Diagnosis Procedure INFOID:0000000001161878 1. CHECK GROUND CONNECTION 1. Turn ignition switch OFF. 2. Check ground connection E15. Refer to Ground Inspection in . Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. ENG SPEED 1,375 - 2,600 rpm VHCL SPEED SE Less than 100 km/h (62 MPH) B/FUEL SCHDL 3.7 - 10.0 msec Shift lever Suitable position (+) (–) Condition Voltage Connector Terminal Connector Terminal F11 49 (HO2S1 signal) F11 56 Engine speed held at 2,000 rpm • The maximum voltage is over 0.8 at least 1 time. • The minimum voltage is over 0.35 at least 1 time. |