Transmission Control Switch Circuit: Procedure

1. Disconnect the G36 transmission control switch connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3 (IG) - 7 (S)	Shift lever in S, "+" or "-"	Below 1 Ω
   2 (SFTU) - 5 (E)	Shift lever held in "+" (Up-shift)	Below 1 Ω
   1 (SFTD) - 5 (E)	Shift lever held in "-" (Down-shift)	Below 1 Ω
   3 (IG) - 7 (S)	Shift lever not in S, "+" or "-"	10 kΩ or higher
   2 (SFTU) - 5 (E)	Shift lever in S	10 kΩ or higher
   1 (SFTD) - 5 (E)	Shift lever in S	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Transmission Control Switch)

NG → See step   5 

OK: Go to next step 

1. Disconnect the G36 transmission control switch connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   G36-3 (IG) - Body ground	Engine switch on (IG)	11 to 14 V
   	Engine switch off	Below 1 V

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G36-5 (E) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the G45 ECM connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   G45-24 (S) - Body ground	Engine switch on (IG) Shift lever in S, "+" or "-"	11 to 14 V
   	Engine switch on (IG) Shift lever not in S, "+" or "-"	Below 1 V

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G45-16 (SFTU) - Body ground	Shift lever held in "+" (Up-shift)	Below 1 Ω
   G45-22 (SFTD) - Body ground	Shift lever held in "-" (Down-shift)	Below 1 Ω
   G45-16 (SFTU) - Body ground	Shift lever in S	10 kΩ or higher
   G45-22 (SFTD) - Body ground	Shift lever in S	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   4