Diagnostic Method
- Abnormality Judgment
Judge as NG when the following conditions are established.
Judgment Value
MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCEMalfunction 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 milliseconds + TOILCNT milliseconds (at the time of 64 milliseconds).
Where, TOILCNT is determined as follows,
TOILCNT = 0 at idle switch ON
For TOILCNT at Idle switch off, refer to VEHICLE SPEED SPECIFICATIONS .
VEHICLE SPEED SPECIFICATIONSVehicle 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) -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 ms - 60000 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 AND THRESHOLD VALUE REFERENCEMalfunction Criteria Threshold Value Engine oil temperature ≥ 15°C(59°F) Time Needed for Diagnosis: Less than 1 second