<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, 3
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| |
More than 0.49 kPa (3.7 mmHg, 0.1 inHg) | P2404 |
| Or, <Judgment 2> Reference pressure for setting the target negative pressure |
Less than value of Map2 | P2404 |
| Or, <Judgment 3> Reference pressure for judgment |
More than value of Map3 | P2404 |
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)) | -3.97 (-30, -1.2) | -4.08 (-31, -1.2) | -4.19 (-31, -1.2) | -4.29 (-32, -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)) | -0.94 (-7.1, -0.3) | -1.05 (-7.9, -0.3) | -1.16 (-8.7, -0.3) | -1.26 (-9.5, -0.4) |