The automatic transmission fluid(ATF) temperature sensor is installed in the Valve Body. This sensor uses a thermistor whose resistance changes according to the temperature changes. The TCM supplies a 5V reference voltage to the sensor, and the output voltage of the sensor changes when the ATF temperature varies. The automatic transmission fluid(ATF) temperature provides very important data for the TCM‘s control of the Torque Converter Clutch, and is also used for many other purposes.
This DTC code is set when the ATF temperature output voltage is higher than a value generated by thermistor resistance, in a normal operating range, for an extended period of time . The TCM regards the ATF temperature as fixed at a value of 80 ℃.
Item | Detecting Condition & Limp Home | Possible Cause | |
DTC Strategy | ● Circuit continuity : open | ● Sensor signal circuit is open. ● Defective sensor ● Defective TCM | |
Enable Conditions | CASE 1 | ● Engine speed > 2000rpm ● Output speed > 1000rpm ● Accumulated time in above condition : 10 min | |
CASE 2 | |||
Threshold Value | ● When DTC code 0713 recorded, After Ignition switch to ON | ||
Diagnostic Time | ● Voltage ＞ 4.57V | ||
Fail Safe | ● Prohibit learning control and INTELLIGENT SHIFT till IG KEY OFF, and regard fluid temp. as 80℃ | ||
