Inspection Procedure
HINT:
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.
- Warm up the engine.
- Turn the ignition switch OFF.
- Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
- Turn the ignition switch ON and turn the tester ON.
- Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
- Follow the instructions on the tester and read the DATA LIST.DIAGNOSTIC REFERENCE
Item Measurement Item/Range (Display) Normal Condition Diagnostic Note A/T OIL TEMP1 ATF temperature sensor value/Min.: -40°C (-40°F)
Max.: 215°C (419°F)- After stall test:
Approximately 80°C (176°F)
- Equal to ambient temperature while engine is cold
If value is -40°C (-40°F) or "150°C (302°F) or more", ATF temperature sensor circuit is open or short circuited - After stall test:
HINT:
- 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 REFERENCETemperature Displayed Malfunction -40°C (-40°F) Open circuit 150°C (302°F) or more Short circuit
HINT:
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.
- INSPECT TRANSMISSION WIRE (ATF TEMPERATURE SENSOR)
- Disconnect the B27 wire connector.
- Measure the resistance of the transmission wire.
Standard resistance
RESISTANCE REFERENCETester 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 HINT:
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
RESISTANCE REFERENCEATF Temperature Specified Condition 10°C (68°F) 6.4 kΩ 110°C (230°F) 0.2 kΩ
NG: REPAIR OR REPLACE TRANSMISSION WIRE
OK: Go TO NEXT STEP.
- CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM)
- Disconnect the B30 ECM connector.
- Measure the resistance of the wire harness side connector.
Standard resistance
RESISTANCE REFERENCETester Connection Specified Condition B30-72 (THO1) - B30-95 (ETHO) 90 Ω to 156 kΩ B30-72 (THO1) - Body ground 1 MΩ or higher B30-95 (ETHO) - Body ground 1 MΩ or higher
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: REPLACE ECM