< Timer Diagnosis (During Soaking) >
WARNING: This page is about a different variant/trim than selected.
Until 5, 7 or 9.5 hours have passed since the ignition switch was turned to OFF, execute wake-up every determined time to compare the counter inside soak time IC and the counter inside ECM.
Judge as malfunction if the counter in soaking timer IC is counted up to maximum value (1023 count) when the counter in ECM is 1637 ms, or if the counter in soaking timer IC is not counted up to maximum value (1023 count) when the counter in ECM is 2455 ms.
Fig 1: Ignition Switch, Main Relay, Driving Cycle, ECM Counter And Soak Timer IC Counter Timing Pattern (Timer Diagnosis)
- Abnormality Judgment
Judge as NG when the following conditions are established.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| When any one of the followings is established. | |
|
|
| Counter in ECM | ≤ 1637 ms |
| Counter in soaking timer IC | = $3FF (1023 count) |
|
|
| Counter in ECM | ≤ 2455 ms |
| Counter in soaking timer IC | $3FF (1023 count) |
- Normality Judgment
Judge as OK when the following conditions are established.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| Following conditions are established. | |
|
|
| Counter in ECM | ≤ 1637 ms |
| Counter in soaking timer IC | $3FF (1023 count) |
|
|
| Counter in ECM | ≤ 2455 ms |
| Counter in soaking timer IC | = $3FF (1023 count) |