Mode B (Measurement of reference pressure for setting the target negative pressure)
Judgment 1
Purpose: Judge the reference pressure stability.
Judge as NG when the following conditions are established.
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> | ||
| |Pressure sensor maximum output value - Pressure sensor minimum output value| | > 493 Pa (3.7 mmHg, 0.1 inHg) | P2404 |
| or | ||
| <Judgment 2> | ||
| Reference pressure for setting the target negative pressure | < Value of Map 2 | P2404 |
| 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 (Pa (mmHg, inHg)) |
-3972 (-29.8, -1.2) | -4079 (-30.6, -1.2) | -4186 (-31.4, -1.2) | -4292 (-32.2, -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 (Pa (mmHg, inHg)) |
-942 (-7.1, -0.3) | -1048 (-7.9, -0.3) | -1155 (-8.7, -0.3) | -1262 (-9.5, -0.4) |