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DTC P0507 ISC SYSTEM EC-473 [VQ35DE] C D E F G H I J K L M A EC Diagnostic Procedure NBS00520 1. CHECK PCV HOSE CONNECTION Confirm that PCV hose is connected correctly. OK >> GO TO 2. NG >> Repair or replace. 2. CHECK INTAKE AIR LEAK 1. Start engine and let it idle. 2. Listen for an intake air leak after the mass air flow sensor. OK or NG OK >> GO TO 3. NG >> Discover air leak location and repair. 3. REPLACE ECM 1. Stop engine. 2. Replace ECM. 3. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to BL-248, "ECM Re-Communicating Function" 4. Perform . 5. Perform EC-86, "Accelerator Pedal Released Position Learning" 6. Perform EC-86, "Throttle Valve Closed Position Learning" 7. Perform EC-86, "Idle Air Volume Learning" >> INSPECTION END |