System Wiring Diagram
WARNING: This page is about a different variant/trim than selected.
- Not applicable
Function Explanation (DTC Detection Outline)
- If both the intake valve and exhaust valve for the deactivated cylinders open mistakenly, the intake air flows to the exhaust pipe and the A/F in the exhaust gas changes to lean. If a large A/F fluctuation during cylinder deactivation is determined, the PCM determines that both the intake valve and exhaust valve for the No. 1 or 4 cylinder are open, and stores a DTC.