Diagnostic Method
Judge as NG if the criteria below are met.
Judgment value
THRESHOLD VALUE SPECIFICATION - JUDGMENT 1
| Malfunction Criteria | Threshold Value |
|---|---|
| Throttle minimum stop position | 2.2 V or more |
THRESHOLD VALUE SPECIFICATION - JUDGMENT 2
| Malfunction Criteria | Threshold Value |
|---|---|
| Accelerator pedal position learning value in backup RAM area 1 | Not equal to accelerator pedal position learning value in backup RAM area 2 |
THRESHOLD VALUE SPECIFICATION - JUDGMENT 3
| Malfunction Criteria | Threshold Value |
|---|---|
| Total of backup RAM (ECM shutdown) | Not equal to total of backup RAM (ECM startup) |
THRESHOLD VALUE SPECIFICATION - JUDGMENT 4
| Malfunction Criteria | Threshold Value |
|---|---|
| Communication status between main CPU and sub CPU | Malfunction |
THRESHOLD VALUE SPECIFICATION - JUDGMENT 5
| Malfunction Criteria | Threshold Value |
|---|---|
| Throttle control calculation data by main CPU | Not equal to throttle control calculation data by sub CPU |
THRESHOLD VALUE SPECIFICATION - JUDGMENT 6
| Malfunction Criteria | Threshold Value |
|---|---|
| Calculation data by main CPU | Not equal to calculation data by FPU |
THRESHOLD VALUE SPECIFICATION - JUDGMENT 7
| Malfunction Criteria | Threshold Value |
|---|---|
| Actual engine output - Target engine output | More than 20 kw (27 PS) |
Time needed for diagnosis
- Judgment 1, 2, 3, 4, 5: Less than 1 s
- Judgment 6: 200 ms
- Judgment 7: 500 ms
Malfunction indicator light illumination: Illuminates as soon as a malfunction occurs.