DTC P1441 Stuck Open in Secondary Air Injection Vacuum Switching Valve Bank 1; DTC P1444 Stuck Open in Secondary Air Injection Vacuum Switching Valve Bank 2; DTC P2440 Secondary Air Injection System Switching Valve Stuck Open Bank 1: Description
Refer to DTC P0412 .
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1441 | No. 2 air switching valve (bank 1) stuck open: The pressure sensor detects exhaust pulsation, when both of No. 2 air switching valve OFF (and air switching valve ON). (2 trip detection logic) |
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| P1444 | No. 2 air switching valve (bank 2) stuck open: The pressure sensor detects exhaust pulsation, when both of No. 2 air switching valve OFF (and air switching valve ON). (2 trip detection logic) |
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| P2440 | No. 2 air switching valve stuck open: The pressure sensor detects exhaust pulsation when the system is not operating (both of No. 2 air switching valve OFF, and air switching valve OFF and air pump OFF). This DTC means air switching valve and "No. 2 air switching valve bank 1 or bank 2" are stuck open. (1 trip detection logic) |
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