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P0130 A/F SENSOR 1 EC-199 < DTC/CIRCUIT DIAGNOSIS > [QR25DE] C D E F G H I J K L M A EC N P O 2. Loosen and retighten two ground screws on the body. Refer to . OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 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 voltage between A/F sensor 1 terminal 4 and ground with CONSULT or tester. OK or NG OK >> GO TO 4. NG >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. • Harness connectors E2, F32 • IPDM E/R harness connector E119 • 15A fuse(No.54) • Harness for open or short between A/F sensor 1 and fuse >> 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 harness continuity between the following terminals. Refer to Wiring Diagram. 4. Check harness continuity between ECM terminals 45, 49 or A/F sensor 1 terminals 1, 2 and ground. Refer to Wiring Diagram. 5. Also check harness for short to power. OK >> GO TO 5. NG >> Repair open circuit, short to ground or short to power in harness or connectors. BBIA0614E Voltage: Battery voltage BBIA0617E A/F sensor 1 terminal ECM terminal 1 45 2 49 Continuity should exist. Continuity should not exist. |