P0412 VOLKSWAGEN Secondary Air Injection System Switching Valve A Circuit Malfunction

Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection When is the code detected? The DTC P0412 is detected the the AIR vacuum control solenoid circuit not

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P0412 TOYOTA Secondary Air Injection System Switching Valve A Circuit Malfunction

Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection When is the code detected? The DTC P0412 is detected the the AIR vacuum control solenoid circuit not

Read More P0412 TOYOTA Secondary Air Injection System Switching Valve A Circuit Malfunction