Typical Malfunction Thresholds
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.
P1440:
TYPICAL MALFUNCTION THRESHOLDS TABLE - P1440
| No. 2 air switching valve (bank 1) output terminal level |
Low |
P1443:
TYPICAL MALFUNCTION THRESHOLDS TABLE - P1443
| No. 2 air switching valve (bank 2) output terminal level |
Low |