DTC P0710-15: Transmission Fluid Temperature Sensor "A" Circuit Short to Battery or Open [11/2021 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT TRANSMISSION WIRE (ATF TEMPERATURE SENSOR)
- Disconnect the B39 transmission wire connector.
*a Component without harness connected
(Transmission Wire) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition B39-1 (OIL) - B39-2 (E2) Always 79 Ω to 156 kΩ B39-1 (OIL) or B39-2 (E2) - Other terminals Always 10 kΩ or higher HINT:
If the resistance is out of the specified range at any of the ATF temperatures shown in the table below, the driveability of the vehicle may decrease.
ATF Temperature Specified Condition 10°C (50°F) 5 to 8 kΩ 25°C (77°F) 2.5 to 4.5 kΩ 110°C (230°F) 0.22 to 0.28 kΩ Result
Proceed to OK NG
Result:
NG
REPLACE TRANSMISSION WIRE (ATF TEMPERATURE SENSOR). Refer to REMOVAL [11/2021 - ]
Result:
OK
See step 2
- Disconnect the B39 transmission wire connector.
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
- Disconnect the B51 ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition B51-40 (THO1) - B51-41 (ETHO) Always 79 Ω to 156 kΩ B51-40 (THO1) or B51-41 (ETHO) - Other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 3
- REPLACE ECM
Refer to REMOVAL [11/2021 - ]
Result
Proceed to NEXT Result:
NEXT
PERFORM REGISTRATION. Refer to REGISTRATION [11/2021 - ]