Transmission Control Switch Circuit [04/2013 - 08/2015]: Procedure

1. Disconnect the transmission control switch connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Transmission Control Switch)

2. Measure resistance between each terminal of transmission control switch when the shift lever is moved to each position.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   4 - 5	M, "+" and "-"	Below 1 Ω
   	Except M, "+" and "-"	10 kΩ or higher
   3 - 2	Press continuously"+"(Up shift)	Below 1 Ω
   	M	10 kΩ or higher
   1 - 2	Press continuously"-"(Down shift)	Below 1 Ω
   	M	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY). Refer to  COMPONENTS [04/2013 - 08/2015] 

Result: 

OK 

See step  2

1. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Transmission Control Switch)

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   K80-4 (IG) - Body ground	Engine switch on (IG)	11 to 14 V
   	Engine switch off	Below 1 V

2. Turn the engine switch off position.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K80-2 (E) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Connect the transmission control switch connector.
2. Disconnect the A77 ECM connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Rear view of wire harness connector (to ECM)

3. Turn the engine switch on (IG) position, and measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.

   Standard Voltage

   Tester Connection	Shift Position	Specified Condition
   A77-16 (S) - Body ground	M, "+" and "-"	11 to 14 V
   	Except M, "+" and "-"	Below 1 V

4. Turn the engine switch off position.
5. Disconnect the spiral cable connector.
6. Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

   Standard Resistance

   Tester Connection	Shift Position	Specified Condition
   A77-8 (SFTU) - Body ground	Press continuously"+"(Up shift)	Below 1 Ω
   	M	10 kΩ or higher
   A77-7 (SFTD) - Body ground	Press continuously"-"(Down shift)	Below 1 Ω
   	M	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [04/2013 - 08/2015] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR