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DTC P1143, P1163 HO2S1 EC-1599 [VG33ER] C D E F G H I J K L M A EC 4. CHECK HEATED OXYGEN SENSOR 1 HEATER 1. Stop engine. 2. Check heated oxygen sensor 1 harness protector color. 3. Check resistance between HO2S1 terminals 3 and 1. 4. Check continuity between HO2S1 terminals 2 and 1, 3 and 2. CAUTION: ● Discard any heated oxygen sensor which has been ● Before installing new oxygen sensor, clean exhaust sys- OK or NG OK (With CONSULT-II)>>GO TO 5. >> Replace malfunctioning heated oxygen sensor 1. PBIB0636E Resistance: 2.3 - 4.3 Ω at 25°C (77°F) Continuity should not exist. AEC158A |