Code P0713, Transaxle Temp Sensor High Temperature Indicated: Notes

Transaxle temperature sensor uses a thermistor to vary signal voltage to PCM according to temperature. PCM applies and monitors a 5-volt reference signal to sensor. When transaxle fluid is cold sensor resistance is high. Thus, PCM will monitor a high signal voltage. As transaxle fluid warms, sensor resistance becomes less and voltage drops. At normal operating temperature of 68-194°F (20-90°C) transaxle temperature signal will measure about 2-4 volts.

Code P0713 will set when the following conditions are present.

• Engine run time is over one minute.
• Transaxle temperature sensor signal indicates a temperature greater than 284°F (140°C).
• All conditions exist for over 1.6 seconds.
  NOTE: Test numbers refer to numbers on diagnostic chart.

1. Determines if conditions necessary to set Code P0713 exist.
2. This test determines if input circuit is shorted to ground which will cause conditions necessary for Code P0713.