DTC P1440, P1443: Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 1; Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2: Description
WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Refer to DTC P0412 .
DTC TROUBLE DETECTION CONDITION
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1440 | AIV1 terminal voltage becomes less than half of the +B voltage while the VSV for air injection system is not operating. (1 trip detection logic) |
|
| P1443 | AIV2 terminal voltage becomes less than half of the +B voltage while the VSV for air injection system is not operating. (1 trip detection logic) |
|