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Mode B (Measurement of reference pressure for setting the target negative pressure)

Judgment 1

Purpose: Judge the reference pressure stability.

Judgment 2

Purpose: Judge whether the reference pressure is within the normal range, and detect the vacuum pump and orifice malfunctions.

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value DTC
Judgment 1 P2404
|Pressure sensor maximum output value - Pressure sensor minimum output value| > 314Pa (2.355mmHg, 0.1inHg)
or
Judgment 2
Reference pressure for setting the target negative pressure < Value of Map 2
or
Judgment 3
Reference pressure for judgment > Value of Map 3
BAROMETRIC PRESSURE SPECIFICATION - MAP 2

Barometric pressure
(kPa (mmHg, inHg))
70 (525, 20.7) 80 (600, 23.6) 90 (675, 26.6) 100 (750, 29.5)
Reference pressure for setting the target negative pressure
(kPa (mmHg, inHg))
-4 (-29.79, -1.2) -4.1 (-30.593, -1.2) -4.2 (-31.395, -1.2) -4.3 (-32.19, -1.3)
BAROMETRIC PRESSURE SPECIFICATION - MAP 3

Barometric pressure
(kPa (mmHg, inHg))
70 (525, 20.7) 80 (600, 23.6) 90 (675, 26.6) 100 (750, 29.5)
Reference pressure for setting the target negative pressure
(kPa (mmHg, inHg))
-0.9 (-7.065, -0.3) -1 (-7.86, -0.3) -1.2 (-8.663, -0.3) -1.3 (-9.465, -0.4)