Diagnostic Method
WARNING: This page is about a different variant/trim than selected.
Judge as NG when the following conditions are established.
- Judgment 1: Diagnosis for open circuit
JUDGMENT VALUE SPECIFICATIONS
| Malfunction Criteria | Threshold Value |
|---|---|
| High-pressure fuel pump wrong operation signal (0.2 A or less) | ON |
- Judgment 2: Diagnosis for overcurrent
JUDGMENT VALUE SPECIFICATIONS
| Malfunction Criteria | Threshold Value |
|---|---|
| High-pressure fuel pump wrong operation signal (14.2 A or more) | ON |
- Judgment 3: Diagnosis for ground short
JUDGMENT VALUE SPECIFICATIONS
| Malfunction Criteria | Threshold Value |
|---|---|
| High-pressure fuel pump wrong operation signal (1 V or less) | ON |
- Judgment 4: Diagnosis for power supply short
JUDGMENT VALUE SPECIFICATIONS
| Malfunction Criteria | Threshold Value |
|---|---|
| High-pressure fuel pump wrong operation signal (5 V or more) | ON |
- Judgment 5: Diagnosis for ground short (between ECM and high-pressure fuel pump driver)
JUDGMENT VALUE SPECIFICATIONS
| Malfunction Criteria | Threshold Value |
|---|---|
| High-pressure fuel pump control voltage | Less than 3.92 V |
- Judgment 6: Diagnosis for power supply short (between ECM and high-pressure fuel pump driver)
JUDGMENT VALUE SPECIFICATIONS
| Malfunction Criteria | Threshold Value |
|---|---|
| High-pressure fuel pump control voltage | 3.92 V or more |
Time needed for diagnosis:
Judgment 1, 2, 5: Map1
Judgment 3, 4, 6: Map2
ENGINE SPEED SPECIFICATIONS - MAP 1
| Engine speed (rpm) | 500 | 2000 | 4000 |
|---|---|---|---|
| Time when calculation was performed 10 times (sec) | 0.6 | 0.15 | 0.08 |
ENGINE SPEED SPECIFICATIONS - MAP 2
| Engine speed (rpm) | 0 | 500 | 2000 | 4000 |
|---|---|---|---|---|
| Time when calculation was performed 10 times (sec) | 0.04 | 0.6 | 0.15 | 0.08 |
Malfunction indicator light illumination: Illuminates as soon as a malfunction occurs.