DTC P3175-15: Electric/Auxiliary Transmission Fluid Pump "A" Motor Temperature Sensor Circuit Short to Battery or Open [09/2023 - ]: Procedure

1. Read the Data List according to the display on the GTS.

   Powertrain > Transmission > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   EOP Coil Temperature	EOP coil temperature	Min.: -40.0°C (-40.0°F) Max.: 215.9°C (420.6°F)	Equal to ambient temperature: When engine is cold	Malfunction could be due to a EOP coil temperature signal malfunction

   Powertrain > Transmission > Data List 

   Tester Display
   EOP Coil Temperature

   Result

   Result	Proceed to
   Data display is within Normal Condition range	A
   Data display is not within Normal Condition range	B

Result: 

A 

REPLACE TCM. Refer to  REMOVAL [09/2023 - ] 

Result: 

B 

See step  2

Pre-procedure1

• Disconnect the TCM connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  C25-50 (CT2+) - C25-49 (CT2-)	Always	0.1 to 264 kΩ	kΩ
  C25-50 (CT2+) - Other terminals	Always	10 kΩ or higher	kΩ
  C25-49 (CT2-) - Other terminals	Always	10 kΩ or higher	kΩ

  HINT: 

  If the resistance is out of the specified range at any of the transaxle fluid temperatures shown in the table below, the driveability of the vehicle may decrease.

  Transaxle Fluid Temperature	Specified Condition
  10°C (50°F)	17.5 to 21.8 kΩ
  25°C (77°F)	9.7 to 11.8 kΩ
  110°C (230°F)	0.96 to 1.07 kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None.

Result: 

OK 

REPLACE TCM. Refer to  REMOVAL [09/2023 - ] 

Result: 

NG 

See step  3

Pre-procedure1

• Disconnect the transmission wire connector.
• Disconnect the TCM connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  C25-50 (CT2+) - C65-6 (CT2+)	Always	Below 1 Ω	Ω
  C25-49 (CT2-) - C65-7 (CT2-)	Always	Below 1 Ω	Ω
  C25-50 (CT2+) or C65-6 (CT2+) - Other terminals	Always	10 kΩ or higher	kΩ
  C25-49 (CT2-) or C65-7 (CT2-) - Other terminals	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None.

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

Pre-procedure1

• Disconnect the transmission wire connector.
• Disconnect the EOP coil temperature sensor connector.

• Measure the resistance according to the value(s) in the table below.

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *1	Transaxle Assembly with Motor	*2	EOP Coil Temperature Sensor
  *3	Transmission Wire	-	-
  *a	EOP Coil Temperature Sensor Side	*b	Wire Harness Connector Side

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  Terminal 2 of the EOP coil temperature sensor connector - C65-6 (CT2+)	Always	Below 1 Ω	Ω
  Terminal 1 of the EOP coil temperature sensor connector - C65-7 (CT2-)	Always	Below 1 Ω	Ω
  Terminal 2 of the EOP coil temperature sensor connector or C65-6 (CT2+) - Other terminals	Always	10 kΩ or higher	kΩ
  Terminal 1 of the EOP coil temperature sensor connector or C65-7 (CT2-) - Other terminals	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None.

Result: 

OK 

REPLACE TRANSAXLE ASSEMBLY WITH MOTOR. Refer to  REMOVAL [09/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE TRANSMISSION WIRE. Refer to  REMOVAL [09/2023 - ]