W/Harness Inspection

P0712 Transmission Fluid Temperature Sensor \'A\' Circuit Low Input

Inspection/Repair - Component Inspection

Component Inspection

"Oil temperature sensor" Inspection
1. Ignition off.
2. Disconnected Oil temperature sensor connector.
3. Measure a resistance between signal of Oil temperature sensor and chassis ground.

Specification : See blow Oil temperature sensor specification table




[Reference data]





4. Is the measured resistance within specifications?





PCM/TCM Inspection
1. Ignition off & Engine Off.
2. Connect Oil temperature sensor connector.
3. Connect GDS to Data Link Connector (DLC) and select Simulation mode.
4. Input 0 -> 5 voltage at Oil temperature sensor signal line by simulation mode and Monitoring Oil temperature sensor.








Fig 1) Simulation Output 1.00 V -> 73 °C
Fig 2) Simulation Output 2.00 V -> 34 °C
** It is subject to change vehicle condition.
5. Is measured Oil temperature sensor value changed by input voltage?