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EC-212 < DTC/CIRCUIT DIAGNOSIS > [MRA8DE] P0130 A/F SENSOR 1 2. Disconnect A/F sensor 1 harness connector. 3. Turn ignition switch ON. 4. Check the voltage between A/F sensor 1 harness connector and ground. *1: Except California *2: For California Is the inspection result normal? YES >> GO TO 3. NO >> GO TO 2. 2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect IPDM E/R harness connector. 3. Check the continuity between A/F sensor 1 harness connector and IPDM E/R harness connector. *1: Except California *2: For California 4. Also check harness for short to ground. YES >> Perform the trouble diagnosis for power supply circuit. NO >> Repair or replace error-detected parts. 3. CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT 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. *1: Except California *2: For California 4. Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector and ground. + − Voltage A/F sensor 1 Connector Terminal F12 *1 F42 *2 4 Ground Battery voltage + − Continuity A/F sensor 1 IPDM E/R Connector Terminal Connector Terminal F12 *1 F42 *2 4 E45 26 Existed + − Continuity A/F sensor 1 ECM Connector Terminal Connector Terminal F12 *1 F42 *2 1 F24 41 Existed 2 45 |