DTC P0987-14: Transmission Fluid Pressure Sensor/Switch "E" Circuit Short to Ground or Open [10/2014 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Transmission / Trouble Codes.

   Powertrain > Transmission > Trouble Codes 

5. Read the DTCs using the Techstream.

   Result

   Result	Proceed to
   Only DTC P0987-14 is output	A
   P0987-14 and other DTCs are output	B

   HINT: 

   If a solenoid is stuck OFF, DTCs for several solenoids including the malfunctioning solenoid will be stored.

Result: 

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2014 - 09/2015]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2015 - 09/2016]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2016 - 09/2017]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2017 - 05/2018]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [05/2018 - 05/2019]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [05/2019 - 07/2020]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [07/2020 - ] 

Result: 

A 

See step  2

1. Disconnect the C21 wiring harness connector.
2. Disconnect the C20 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C21-10 (TPS3) - C20-85 (TPS3)	Always	Below 1 Ω
   C21-10 (TPS3) or C20-85 (TPS3) - Body ground and 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

1. Remove the wiring harness connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Wiring Harness Connector	-	-
   *a	Transmission Wire Side	*b	ECM Side

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A-10 (TPS3) - C21-10 (TPS3)	Always	Below 1 Ω
   A-10 (TPS3) - All other terminals except C21-10 (TPS3)	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE WIRING HARNESS CONNECTOR. Refer to  REMOVAL [10/2014 - 09/2015]  , or refer to  REMOVAL [09/2015 - 05/2019]  , or refer to  REMOVAL [05/2019 - ] 

Result: 

OK 

See step  4

1. Disconnect the ATF temperature sensor assembly connector.

   Refer to REMOVAL [10/2014 - ]

2. Remove the wiring harness connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Transmission Wire
   *a	ATF Temperature Sensor Assembly Side
   *b	Wiring Harness Connector Side

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   TPS3 ATF temperature sensor assembly side - A-10 (TPS3) wiring harness connector side	Always	Below 1 Ω
   TPS3 ATF temperature sensor assembly side - Body ground and all other terminals except A-10 (TPS3) wiring harness connector side	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE TRANSMISSION WIRE. Refer to  REMOVAL [10/2014 - ] 

Result: 

OK 

See step  5

1. Replace the ATF temperature sensor assembly.

   Refer to REMOVAL [10/2014 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Connect the Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2014 - 05/2019] , or refer to DTC CHECK / CLEAR [05/2019 - ]

   Powertrain > Transmission > Clear DTCs 

   HINT: 

   Write down the currently output DTCs before clearing them.

4. Perform the monitor drive pattern.

   Refer to MONITOR DRIVE PATTERN [10/2014 - ]

5. Enter the following menus: Powertrain / Transmission / Trouble Codes.

   Powertrain > Transmission > Trouble Codes 

6. Read the DTCs using the Techstream.

   Result

   Result	Proceed to
   Only DTC P0987-14 is output	A
   DTCs are not output	B

Result: 

A 

REPLACE ECM. Refer to  REMOVAL [10/2014 - 05/2019]  , or refer to  REMOVAL [05/2019 - ] 

Result: 

B 

END