The automatic transmission fluid(ATF) temperature sensor A is installed in the Transmission Range Switch and fluid(ATF) temperature sensor B is installed in the valve body. The TCM supplies a 5V reference voltage to the sensor, and the output voltage of the sensor changes when the ATF temperature varies.
This DTC is for checking sensor failure. This code is set if the temperture data from Oil Temperture sensor is fixed between -20℃ and 0℃ or 0℃ and 20℃ for 10min. after driving a vehicle.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Circuit continuty-ground | ※ ATF T/S :Automatic Transmission Fluid Temperature Sensor
•
Short to ground in circuit
•
Faulty ATF T/S 1
•
TCM |
Enable Conditions |
•
Battery voltage > 10V | |
Threshold Value |
•
Input voltage < 0.05V | |
Diagnostic Time |
•
More than 2 sec | |
Fail Safe |
•
OTS2 temperature(If OTS2 is error, 80['C] is fixed)
•
Shift prevention over 4th gear
•
Prevention of manual shift
•
Prevention of pressure adaptation |
Temperature(℃) | Resistance(KΩ) | Voltage(V) | |
ATF T/S 1 | 0℃ | Approx. 15KΩ | Approx. 3.3V |
20℃ | Approx. 6.5KΩ | Approx. 2.7V | |
80℃ | Approx. 0.9KΩ | Approx. 0.9V | |
ATF T/S 2 | 0℃ | Approx. 10.5KΩ | Approx. 3.3V |
20℃ | Approx. 4.3KΩ | Approx. 2.5V | |
80℃ | Approx. 0.5KΩ | Approx. 0.7V |
