Diagnostic Method
- Abnormality Judgment
Judge as NG when the following conditions are established.
Judgment Value
| Malfunction Criteria | Threshold Value |
|---|---|
| Engine oil temperature | <15°C(59°F) |
| After engine start oil temperature sensor characteristic diagnosis timer. | ≥ Judgment value for after engine start oil temperature sensor characteristic diagnosis timer |
After engine start oil temperature sensor characteristic diagnosis timer (timer for diagnosis).
- Timer stop at fuel cut
- During the driving conditions except a) above, timer counts up as follows.
64 ms + TOILCNT ms (at 64 ms)
Where, TOILCNT is determined as follows,
TOILCNT = 0 at idle switch ON
For TOILCNT at Idle switch off, refer to the following table.
VEHICLE SPEED SPECIFICATION CHARTVehicle speed km/h (MPH) 0 (0) 8 (5) 16 (9.9) 24 (14.9) 32 (19.9) 40 (24.9) 48 (29.8) 56 (34.8) Temperature °C (°F) -30 (-22) 64 ms 73.2 ms 83.9 ms 96.3 ms 113.2 ms 133.9 ms 160.2 ms 194.6 ms -20 (-4) 64 ms 73.3 ms 84 ms 96.6 ms 113.7 ms 135 ms 162 ms 197.4 ms -10 (14) 64 ms 73.4 ms 84.2 ms 96.9 ms 114.5 ms 136.4 ms 164.4 ms 201.5 ms 0 (32) 64 ms 73.5 ms 84.5 ms 97.4 ms 115.6 ms 138.5 ms 168 ms 207.6 ms 10 (50) 102.2 ms 114.8 ms 129.4 ms 146.7 ms 171.7 ms 203.4 ms 245.1 ms 302.1 ms
After engine start oil temperature characteristic diagnosis timer judgment value (t).
t = 1882940 ms - 43302 ms x Ti (t ≥ 2400000)
Ti = The lowest coolant temperature after starting the engine.
Time Needed for Diagnosis: Less than 1 second
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.
Judgment Value
| Malfunction Criteria | Threshold Value |
|---|---|
| Engine oil temperature | ≥ 15°C(59°F) |
Time Needed for Diagnosis: Less than 1 second