Diagnostic Method
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Diagnosis 1: Power supply short
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Terminal voltage | ≥ 4.1 V |
Diagnosis 2: Ground short
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Terminal voltage | ≤ 0.8 V |
Diagnosis 3: Open circuit
JUDGMENT VALUE SPECIFICATION
| Malfunction | Criteria Threshold Value |
|---|---|
| Fuel pump current | ≤ 0.5 A |
Diagnosis 4: Short circuit
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Time for reaching target current | ≤ 0.075 ms |
Diagnosis 5: Diagnosis for overcurrent
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Fuel pump current | ≥ 22 A |
Time needed for diagnosis: TDC x 75 times
Malfunction indicator light illumination: Illuminates as soon as a malfunction occurs.