Mode B (Measurement of reference pressure for setting the target negative pressure)
- Purpose: Judge the reference pressure stability.
Judge as NG when the following conditions are established.
JUDGMENT VALUEMalfunction Criteria Threshold Value DTC |Pressure sensor maximum output value - Pressure sensor minimum output value| > 0.3 kPa (2.355 mmHg, 0.1 inHg) P2404 - 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 VALUEMalfunction Criteria Threshold Value DTC Reference pressure for setting the target negative pressure < Value of Map 2
or
> Value of Map 3P2404
MAP 2
| Atmospheric 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 3
| Atmospheric 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) |