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EC-220 < COMPONENT DIAGNOSIS > [QR25DE] P0145 HO2S3 2. Check the continuity between HO2S3 harness connector or ECM harness connector and ground. 3. Also check harness for short to power. YES >> GO TO 7. NO >> GO TO 6. 6. DETECT MALFUNCTIONING PART Check the following. • Harness connectors F58, F101 • Harness for open or short between heated oxygen sensor 3 and ECM >> Repair open circuit or short to ground or short to power in harness or connectors. 7. CHECK INTERMITTENT INCIDENT GI-42, "Intermittent Incident" Is the inspection result normal? YES >> GO TO 8. NO >> Repair or replace. 8. REPLACE HEATED OXYGEN SENSOR Replace heated oxygen sensor 3. CAUTION: • Discard any sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one. • Before installing new 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 HO2S3 ECM Continuity Connector Terminal Connector Terminal F102 4 F13 34 Existed HO2S3 ECM Ground Continuity Connector Terminal Connector Terminal F102 4 F13 34 Ground Not existed |