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EC-182 < DTC/CIRCUIT DIAGNOSIS > [MR18DE] P0130 A/F SENSOR 1 3. Shift the selector lever to the D position (CVT) or 1st position (M/T), then release the accelerator pedal CAUTION: Always drive vehicle at a safe speed. 4. Repeat steps 2 to 3 for five times. 5. Stop the vehicle and turn ignition switch OFF. 6. Wait at least 10 seconds and restart engine. 7. Repeat steps 2 to 3 for five times. 8. Stop the vehicle. 9. Check 1st trip DTC. Is 1st trip DTC detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000009947309 1. CHECK GROUND CONNECTION 1. Turn ignition switch OFF. 2. Check ground connection E38. Refer to Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. 2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT 1. Disconnect A/F sensor 1 harness connector. 2. Turn ignition switch ON. 3. Check the voltage between A/F sensor 1 harness connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. >> Repair or replace harness or connectors. 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 the continuity between A/F sensor 1 harness connector and ECM harness connector. A/F sensor 1 Ground Voltage Connector Terminal F50 4 Ground Battery voltage A/F sensor 1 ECM Continuity Connector Terminal Connector Terminal F50 1 F8 49 Existed 2 53 |