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DTC P0130, P0150 A/F SENSOR 1 EC-235 C D E F G H I J K L M A EC 2006 Pathfinder 4. CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check harness continuity between A/F sensor 1 terminal and ECM terminal as follows. 4. Check harness continuity between the following terminals and ground. 5. Also check harness for short to power. OK or NG OK >> GO TO 5. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 5. CHECK INTERMITTENT INCIDENT Perform EC-144, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" OK or NG OK >> GO TO 6. NG >> Repair or replace. 6. REPLACE A/F SENSOR 1 Replace 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 Heated Oxygen Sensor >> INSPECTION END A/F sensor 1 terminal ECM terminal Bank1 1 16 2 75 5 35 6 56 Bank 2 1 76 2 77 5 57 6 58 Continuity should exist. Bank 1 Bank 2 A/F sensor 1 terminal ECM terminal A/F sensor 1 terminal ECM terminal 1 16 1 76 2 75 2 77 5 35 5 57 6 56 6 58 Continuity should not exist. |