Diagnostic Method
Abnormality Judgment
When the following conditions are established, it is NG.
Judgment Value
JUDGMENT VALUE - ABNORMALITY JUDGMENT
| 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 count up by 64 milliseconds + TCILCNT milliseconds at every 64 milliseconds.
Where, TOILCNT is determined as follows, TOILCNT = 0 at idle switch ON
For TOILCNT at Idle switch off, refer to the following table.
TEMPERATURE SPECIFICATION
| Vehicle speed km/h (MPH) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0 (0) | 8 (5) | 16 (10) | 24 (15) | 32 (20) | 40 (25) | 48 (30) | 56 (35) | ||
| Temperature °C (°F) | -40 (-40) | 0 ms | 32 ms | 76 ms | 130 ms | 149 ms | 171 ms | 176 ms | 181 ms |
| -30 (-22) | 67 ms | 93 ms | 121 ms | 157 ms | 170 ms | 184 ms | 193 ms | 203 ms | |
| -20 (-4) | 98 ms | 123 ms | 148 ms | 184 ms | 193 ms | 204 ms | 214 ms | 226 ms | |
| -10 (14) | 145 ms | 166 ms | 187 ms | 208 ms | 223 ms | 239 ms | 242 ms | 245 ms | |
| 0 (32) | 161 ms | 187 ms | 212 ms | 243 ms | 252 ms | 262 ms | 266 ms | 270 ms | |
After engine start oil temperature characteristic diagnosis timer judgment value (t).
t = 2400000 - 60000 x Ti (t ≥ 2400000)
Ti = The lowest coolant temperature after starting the engine.
Time Needed for Diagnosis: Undecided
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cycles.
Normality Judgment
When the following conditions are established, it is OK.
Judgment Value
JUDGMENT VALUE - NORMALITY JUDGMENT
| Malfunction Criteria | Threshold Value |
|---|---|
| Engine oil temperature | ≥ 15°C (59°F) |