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DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER EC-889 [VK45DE] C D E F G H I J K L M A EC 5. CHECK A/F SENSOR 1 HEATER Refer to EC-889, "Component Inspection" OK or NG OK >> GO TO 6. NG >> GO TO 7. 6. CHECK INTERMITTENT INCIDENT Perform EC-857, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" OK or NG OK >> GO TO 7. NG >> Repair or replace. 7. REPLACE AIR FUEL RATIO (A/F) SENSOR 1 Replace air fuel ratio (A/F) sensor 1. CAUTION: ● Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a ● Before installing new A/F sensor, clean exhaust system threads using Oxygen Sensor Thread >> INSPECTION END Component Inspection NBS005BN AIR FUEL RATIO (A/F) SENSOR 1 HEATER Check resistance between terminals 3 and 4. Check continuity between terminals 3 and 1, 2, 5, 6, terminals 4 and If NG, replace the A/F sensor 1. CAUTION: ● Discard any A/F sensor which has been dropped from a ● Before installing new A/F sensor, clean exhaust system Removal and Installation NBS005BO AIR FUEL RATIO (A/F) SENSOR 1 Refer to EM-183, "EXHAUST MANIFOLD AND THREE WAY CATALYST" Resistance: 2.3 - 4.3 Ω [at 25 ° C (77 ° F)] Continuity should not exist. PBIB1684E |