Diagnostic Method
- When the conditions during which the differences of AVCS target timing advance amount and AVCS actual timing advance amount is large continues for certain amount of time.
- When the differences of target timing advance amount and actual timing advance amount is calculated during AVCS control, and the difference per predetermined time is the specified value or larger.
- Abnormality Judgment
Judge as NG when the following conditions are established within the predetermined time.
JUDGMENT VALUE CHART
| Malfunction criteria | Threshold value |
|---|---|
| Σ(Target position - Actual position) | > 15000 °CA (Bank 1) > 15000 °CA (Bank 2) |
| or | |
| Sigma;(Target position - Actual position) | < -4800 °CA (Bank 1) < -4800 °CA (Bank 2) |
Time Needed for Diagnosis: 60000 ms
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- Normality Judgment
Judge as OK and clear the NG if the following conditions are established within the predetermined time.
JUDGMENT VALUE CHART
| Malfunction criteria | Threshold value |
|---|---|
| Σ(Target position - Actual position) | ≤ 15000 °CA (Bank 1) ≤ 15000 °CA (Bank 2) and ≥ -4800 °CA (Bank 1) ≥ -4800 °CA (Bank 2) |
Time Needed for Diagnosis: 60000 ms