This system pumps air into the exhaust system during startup to help the catalytic converter heat up faster and reduce emissions. The code means the PCM (Powertrain Control Module) isn't receiving the expected signal from the valve's control circuit, indicating a problem with the wiring, the valve itself, or a related sensor or component.
To diagnose the issue properly, you'll likely need to:
* Visually inspect the AIR switching valve and its wiring: Check for loose connections, broken wires, or corrosion.
* Check the fuses and relays associated with the secondary air injection system.
* Use a scan tool to get more detailed information: A scan tool can provide more information about the nature of the fault and may pinpoint the exact problem more precisely.
* Check for vacuum leaks: The AIR system relies on vacuum, so leaks can affect its operation.
* Test the valve itself: This often involves using a multimeter to check for proper operation and continuity.
Important Note: Without a proper scan tool and the ability to test the system's components, accurately determining the cause of P1415 can be difficult. It's generally recommended to have a qualified mechanic diagnose and repair this code. Ignoring it might lead to further damage or emission problems.
