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P0146 HO2S3 EC-253 < COMPONENT DIAGNOSIS > [QR25DE FOR CALIFORNIA] C D E F G H I J K L M A EC N P O NO >> GO TO 5. 5. CHECK HEATED OXYGEN SENSOR 3-III Check the voltage between ECM harness connector and ground under the following condition. Is the inspection result normal? YES >> INSPECTION END NO >> GO TO 6. 6. REPLACE HEATED OXYGEN SENSOR 3 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 ECM Ground Condition Voltage Connector Terminal F13 34 (HO2S3 signal) Ground Coasting from 80 The voltage should be JMBIA1590ZZ |