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| | > 314Pa (2.355mmHg, 0.1inHg) | P2404 |
| or | ||
| Judgment 2 | ||
| Reference pressure for setting the target negative pressure | < Value of Map 2 or > Value of Map 3 |
P2404 |
MAP SPECIFICATION 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) |
MAP SPECIFICATION 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 judgment (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) |