Трансмиссия. Toyota Rav4. Aca30, 33, 38 Ala30
Автоматическая Трансмиссия U241E. Toyota Rav4. Aca30, 33, 38 Ala30
INSPECT TRANSMISSION WIRE (ATF TEMPERATURE SENSOR)
CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM)
DTC P0710 Transmission Fluid Temperature Sensor "A" Circuit |
DTC P0712 Transmission Fluid Temperature Sensor "A" Circuit Low Input |
DTC P0713 Transmission Fluid Temperature Sensor "A" Circuit High Input |
DESCRIPTION
The Automatic Transmission Fluid (ATF) temperature sensor converts the ATF temperature into a resistance value which is input into the ECM.The ECM applies a voltage to the temperature sensor through ECM terminal THO1.
The sensor resistance changes with the ATF temperature.
One terminal of the sensor is grounded so that the sensor resistance and voltage decrease as the temperature becomes higher.
The ECM calculates the ATF based on the voltage signal.
| DTC No. | DTC Detection Condition | Trouble Area |
| P0710 | ATF temperature sensor resistance changes from (a) to (b) or from (b) to (a) in less than 0.5 sec., and P0712 and P0713 are not detected (1 trip detection logic): (a) ATF temperature sensor resistance is less than 79 Ω (b) ATF temperature sensor resistance is more than 156 kΩ |
|
| P0712 | ATF temperature sensor resistance is less than 79 Ω for 0.5 sec. or more (1 trip detection logic) |
|
| P0713 | 15 minutes or more after the engine start, ATF temperature sensor resistance is more than 156 kΩ for 0.5 sec. or more (1 trip detection logic) |
|
MONITOR DESCRIPTION
ATF temperature sensor converts ATF temperature to an electrical resistance value. Based on the resistance, the ECM determines the ATF temperature, and the ECM detects an open or short in the ATF temperature circuit. If the resistance value of the ATF temperature is less than 79 Ω*1 or more than 156 kΩ*2, the ECM interprets this as a fault in the ATF sensor or wiring. The ECM will illuminate the MIL and store the DTC.- УКАЗАНИЕ:
- *1: 150°C (302°F) or more is indicated regardless of the actual ATF temperature.
- *2: -40°C (-40°F) is indicated regardless of the actual ATF temperature.
- The ATF temperature can be checked on the intelligent tester display.
WIRING DIAGRAM
INSPECTION PROCEDURE
- УКАЗАНИЕ:
- Using the intelligent tester's Data List allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time.
- ПРИМЕЧАНИЕ:
- In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
- Warm up the engine.
- Turn the ignition switch off.
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch on (IG) and turn the tester ON.
- Enter the following menus: Powertrain / Engine and ECT / Data List.
- Follow the instructions on the tester and read the Data List.
| Item | Measurement Item/ Range (Display) | Normal Condition | Diagnostic Note |
| A/T Oil Temperature 1 | ATF temperature sensor value/ Min.: -40°C (-40°F) Max.: 215°C (419°F) |
| If value is -40°C (-40°F) or "150°C (302°F) or more", ATF temperature sensor circuit is open or short circuited |
- УКАЗАНИЕ:
- When DTC P0712 is output and the tester output is 150°C (302°F) or more, there is a short circuit.
- When DTC P0713 is output and the tester output is -40°C (-40°F), there is an open circuit.
Measure the resistance between terminal THO1 (THO) and the body ground.
| Temperature Displayed | Malfunction |
| -40°C (-40°F) | Open circuit |
| 150°C (302°F) or more | Short circuit |
- УКАЗАНИЕ:
- If a circuit related to the ATF temperature sensor becomes open, P0713 is set in approximately 0.5 seconds. It is not necessary to inspect the circuit when P0711 is set.
| 1.INSPECT TRANSMISSION WIRE (ATF TEMPERATURE SENSOR) |
Disconnect the B29 wire connector.
 |
Measure the resistance of the transmission wire.
- Standard resistance:
Tester Connection Specified Condition 1 (THO) - 6 (E2) 90 Ω to 156 kΩ 1 (THO) - Body ground 1 MΩ or higher 6 (E2) - Body ground 1 MΩ or higher
- УКАЗАНИЕ:
- If the resistance is out of the specified range of either of the ATF temperatures shown in the table below, the driveability of the vehicle may decrease.
- Standard resistance:
ATF Temperature Specified Condition 10°C (68°F) 6.4 kΩ 110°C (230°F) 0.2 kΩ
|
| ||||
| OK | |
| 2.CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM) |
 |
Disconnect the B32 ECM connector.
Measure the resistance of the wire harness side connector.
- Standard resistance:
Tester Connection Specified Condition B32-72 (THO1) - B32-95 (ETHO) 90 Ω to 156 kΩ B32-72 (THO1) - Body ground 1 MΩ or higher B32-95 (ETHO) - Body ground 1 MΩ or higher
|
| ||||
| OK | ||
| ||