Diagnostic Method
Significant drop in accumulator pressure continues.
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Case 1 Accumulator Pressure Increase |
Less than 0.25 MPa |
| Brake Booster Motor | Operated |
| Case 2 Accumulator pressure |
Less than 6 MPH |
| Brake Booster Motor (after ECM Power on) | Operated |
| Case 3 Accumulator pressure |
Less than 14 MPH |
| Brake Booster Motor | Operated |
Time needed for diagnosis: Time depends on battery voltage and Brake Booster Pressure.
- Case 1: BATTERY VOLTAGE SPECIFICATION
Battery Voltage Accumulator pressure: 17.1 MPa or more experienced (After ECM ON) 13 V or more Less than 13 V Time Required (sec) 4.5 9 None 1.7 3.4 Once or More - Case 2: 3 s
- Case 3:
BATTERY VOLTAGE SPECIFICATION
| Battery Voltage | Time Required (sec) |
|---|---|
| 13 V or more | 33 |
| 10 - 13 V | 66 |
| Less than 10 V | 99 |
Malfunction indicator light illumination: Illuminates as soon as a malfunction occurs.