DTC Advanced Diagnostics: P0712, P0713: General Description

Courtesy of HONDA, U.S.A., INC.

The ATF temperature sensor is a thermistor type sensor that changes resistance according to the change in ATF temperature. The transmission control module (TCM) sends a 5 V reference signal to the sensor through a pull-up resistor. When the ATF temperature is low, the sensor resistance increases and the TCM detects a high signal voltage. As the ATF temperature rises, the sensor resistance decreases and the TCM detects a low signal voltage. When the ATF temperature sensor signal voltage to the TCM is below specification or above specification, indicating that the temperature is above specification (a short to ground) or below specification (open), the TCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type