For 1990-2009 cars

## DTC P0713 L61

### Circuit Description

The transaxle fluid temperature (TFT) sensor is a negative coefficient thermistor. The TFT sensor is part of the transaxle fluid pressure (TFP) switch assembly. The PCM supplies a five volt reference signal to the sensor on circuit 1227. When the transmission fluid is cold, the sensor resistance is high and the PCM senses a high signal voltage. As the transmission fluid warms, the sensor resistance decreases and the PCM senses lower voltage. The PCM uses the TFT reading in order to control the torque converter clutch (TCC), line pressure adjustments, and temperature compensated shifts.

### Conditions for Setting the DTC

DTC P0713 will set if TFT temperature is below -37°C (-35°F), TFT sensor voltage less above 4.92 volts when:

• | Condition exists for longer than 6 minutes and 40 seconds

• | Ignition voltage is between 8 and 18 volts with ignition On.

P0713 is a type C DTC.

### Diagnostic Aids

DTC P0713 could set if the vehicle is exposed to temperatures below -37°C (-35°F).

Important: The PCM uses two internal circuits to identify transaxle temperature. One circuit is used for temperatures of 48°C (118°F) and below. If either circuit has failed the DTC will set, however the temperature may look normal in the other range.

Important: Test low scale with engine at room temperature and high scale with engine at normal operating temperature (above 70°C [158°F]).

#### TFT SENSOR - Temperature to Resistance (approximate)

°C | °F | RESISTANCE (OHMS)
--- | --- | ---
0 | 32 | 7987-10859
10 | 50 | 4934-6407
20 | 68 | 3106-3923
30 | 86 | 1991-2483
40 | 104 | 1307-1611
50 | 122 | 878-1067
60 | 140 | 605-728
70 | 158 | 425-507
80 | 176 | 304-359
90 | 194 | 221-259
100 | 212 | 163-190

### DTC P0713

## DTC P0713 L81

### Circuit Description

The transaxle fluid temperature (TFT) sensor is a negative coefficient thermistor. The TFT sensor is part of the transaxle fluid pressure (TFP) switch assembly. The TCM supplies a five volt reference signal to the sensor on circuit 1227. When the transmission fluid is cold, the sensor resistance is high and the TCM senses a high signal voltage. As the transmission fluid warms, the sensor resistance decreases and the TCM senses lower voltage. The TCM uses the TFT reading in order to control the torque converter clutch (TCC), line pressure adjustments, and temperature compensated shifts.

### Conditions for Setting the DTC

DTC P0713 will set if TFT temperature is below -37°C (-35°F), TFT sensor voltage less above 4.92 volts when:

• | Condition exists for longer than 6 minutes and 40 seconds

• | Ignition voltage is between 8 and 18 volts with ignition On.

P0713 is a type C DTC.

### Diagnostic Aids

DTC P0713 could set if the vehicle is exposed to temperatures below -38°C (-38°F).

Important: The PCM uses two internal circuits to identify transaxle temperature. One circuit is used for temperatures of 48°C (118°F) and below. If either circuit has failed the DTC will set, however the temperature may look normal in the other range.

Important: Test low scale with engine at room temperature and high scale with engine at normal operating temperature (above 70°C [158°F]).

#### TFT SENSOR - Temperature to Resistance (approximate)

°C | °F | RESISTANCE (OHMS)
--- | --- | ---
0 | 32 | 7987-10859
10 | 50 | 4934-6407
20 | 68 | 3106-3923
30 | 86 | 1991-2483
40 | 104 | 1307-1611
50 | 122 | 878-1067
60 | 140 | 605-728
70 | 158 | 425-507
80 | 176 | 304-359
90 | 194 | 221-259
100 | 212 | 163-190

### DTC P0713