Transmission oil temperature sensor is installed at valve body. This sensor is used thermistor which is changed by temperature variation. If PCM/TCM supplied about 3.3 voltage to sensor, then sensor output value is changed by ATF temperature variation. Transmission oil temperature sensor is very important for Transmission and sensor value is input to PCM/TCM and That information (sensor value) is important used for Damper clutch, Detected Non performance area, Controlled oil temperature variation and oil pressure at change of speed and other use.
This code is set when oil temperature sensor value is without as below 3 cases of detection condition.
Item | Detecting Condition 1 | Possible Cause |
DTC Strategy |
•
Stuck | 1. Oil temperature sensor 2. PCM/TCM |
Enable Conditions |
•
Baterry voltage > 10V
•
Engine spped > 400 RPM | |
Threshold value |
•
Oil temperture sensor < -10℃ | |
Detecting Time |
•
Consecutively 300 sec & 2 D/C | |
Fail safe |
•
Oil temperture fixed at 80℃
•
Teaching / Fuzzy not allowed |
Item | Detecting Condition 2 | Possible Cause |
DTC Strategy |
•
Stuck | 1. Oil temperature sensor 2. PCM/TCM |
Enable Conditions |
•
Baterry voltage > 10V
•
Engine spped > 1500 RPM
•
TR switch = "D" range or Sports mode | |
Threshold value |
•
-10℃ < Oil temperture sensor( IG ON)<20℃ | |
Detecting Time |
•
For 800 sec & 2 D/C | |
Fail safe |
•
Oil temperture fixed at 80℃
•
Teaching / Fuzzy not allowed |
Item | Detecting Condition 3 | Possible Cause |
DTC Strategy |
•
Stuck | 1. Oil temperature sensor 2. PCM/TCM |
Enable Conditions |
•
Baterry voltage > 10V
•
Engine spped > 400 RPM
•
Oil temperture sensor at IG OFF in the previous D/C >60℃
•
Water temperture sensor at IG OFF in the previous D/C >73.5℃
•
Water temperture sensor at IG OFF in the previous D/C - Water temperture sensor at IG ON in the current D/C >34℃ | |
Threshold value |
•
Oil temperture sensor > 180℃ | |
Detecting Time |
•
More than 5sec & 2 D/C | |
Fail safe |
•
Oil temperture fixed at 80℃
•
Teaching / Fuzzy not allowed |
Oil Temperature Sensor | TEMP.(℃) | RESISTANCE(kΩ) | TEMP.(℃) | RESISTANCE(kΩ) |
-40℃ | Approx. 139.5 | 80℃ | Approx. 1.08 | |
-20℃ | Approx. 47.4 | 100℃ | Approx. 0.63 | |
0℃ | Approx. 18.6 | 120℃ | Approx. 0.38 | |
20℃ | Approx. 8.1 | 140℃ | Approx. 0.25 | |
40℃ | Approx. 3.1 | 160℃ | Approx. 0.16 | |
60℃ | Approx. 1.98 |
