Diagnostic Method
- Judge NG when the difference of the amount of AVCS target timing advance and the amount of AVCS actual timing advance becomes large.
- Judge NG when the most retarded learning value is outside of the normal range.
- Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criteria below becomes 20 seconds or more.
Judgment Value
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| (1) Judgment value 1 | |
| |AVCS - AVCS actual position | | ≥ 0° |
| (2) Judgment value 1 | |
| AVCS control | During most timing retard learning |
| Most timing retard learning value | < -13°CA or > 25°CA |
Time Needed for Diagnosis: 20 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- Normality Judgment
Judge as OK and clear the NG when the continuous time with the following criteria established is more than 1 second.
Judgment Value
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| (1) Judgment value 1 | |
| AVCS control | Operating |
| Amount of AVCS target timing advance | 5 - 30°CA |
| AVCS target position - AVCS actual position | < 10° |
| (2) Judgment value 1 | |
| Most timing retard learning value | -13 - 25°CA |