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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Engine Control System (2UZ-FE)) >> SFI System >> DTC P1440 Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 1: DTC P1443 Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2 >> Monitor Description

Monitor Description

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

The ECM detects an open or short in the circuit of the VSV for air injection system according to the AIV1 (AIV2) terminal voltage, stores the DTC, and then illuminates the MIL. When the AIV1 (AIV2) terminal voltage is less than half of the +B voltage while the VSV for air injection system is not operating, the ECM determines it as a malfunction.

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