Malfunction Threshold

One of these conditions is met.

• The FTP sensor output fluctuates by 0.6 kPa (0.1 in.Hg, 5 mmHg) or more, or -0.6 kPa (-0.1 in.Hg, -5 mmHg) or less for at least 3 seconds.
• The FTP sensor output value is -1.3 kPa (-0.3 in.Hg, -10 mmHg) or less for at least 3 seconds.