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EC-814 < COMPONENT DIAGNOSIS > [MR18DE] P0132 HO2S1 2. PERFORM DTC CONFIRMATION PROCEDURE 1. Start engine and warm it up to normal operating temperature. 2. Turn ignition switch OFF and wait at least 10 seconds. 3. Restart engine and let it idle for 2 minutes. 4. Check 1st trip DTC. Is 1st trip DTC is detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000001161787 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. 2. RETIGHTEN HEATED OXYGEN SENSOR 1 Loosen and retighten heated oxygen sensor 1. Refer to EM-159, "Removal and Installation" . >> GO TO 3. 3. CHECK HO2S1 GROUND CIRCUIT FOR OPEN AND SHORT 1. Disconnect heated oxygen sensor 1 harness connector. 2. Disconnect ECM harness connector. 3. Check harness continuity between HO2S1 harness connector and ECM harness connector. 4. Also check harness for short to ground and short to power. Is the inspection result normal? YES >> GO TO 4. NO >> Repair open circuit or short to ground or short to power in harness or connectors. 4. CHECK HO2S1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Check harness continuity between HO2S1 harness connector and ECM harness connector. 2. Check harness continuity between HO2S1 harness connector or ECM harness connector and ground. 3. Also check harness for short to power. Is the inspection result normal? YES >> GO TO 5. NO >> Repair open circuit or short to ground or short to power in harness or connectors. 5. CHECK HO2S1 CONNECTOR FOR WATER HO2S1 ECM Continuity Connector Terminal Connector Terminal F12 1 F11 56 existed HO2S1 ECM Continuity Connector Terminal Connector Terminal F12 4 F11 49 existed HO2S1 ECM Ground Continuity Connector Terminal Connector Terminal F12 4 F11 49 Ground Not existed |