Judgment Value
MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE
| Malfunction Criteria | Threshold Value |
|---|---|
| parafca = td2faf/td2lmd | ≥ 0.44 (except for U5 model) |
| where, | ≥ 0.3 (U5 model) |
| td2faf (N) = td2faf (n-1) + |d2faf (n)| | |
| td2lmd (N) = td2lmd (n-1) + |d2lmd (n)| | |
| add up to a total of 210 seconds | |
| d2faf (n) = (faf (n) - faf (n-1)) - (faf (n-1) - faf(n-2)) | |
| d2lmd (n) = (Imd (n) - Imd (n-1)) - (Imd (n-1) - lmd(n-2)) | |
| faf = main feedback compensation coefficient every 128 milliseconds | |
| Imd = output lambda every 128 milliseconds |
Time Needed for Diagnosis: 210 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.