Transmission Control Switch Circuit: Procedure

1. Disconnect the transmission control switch connector.
   Fig 1: Inspecting Transmission Control Switch

   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
   6 (IG) - 13 (S)	Shift lever in S, "+" or "-"	Below 1 Ω
   5 (SFTU) - 11 (E)	Shift lever held in "+" (Up-shift)	Below 1 Ω
   4 (SFTD) - 11 (E)	Shift lever held in "-" (Down-shift)	Below 1 Ω
   6 (IG) - 13 (S)	Shift lever not in S, "+" or "-"	10 kΩ or higher
   5 (SFTU) - 11 (E)	Shift lever in S	10 kΩ or higher
   4 (SFTD) - 11 (E)	Shift lever in S	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Transmission Control Switch)

NG → See step   4 

OK: Go to next step 

1. Disconnect the transmission control switch connector.
   Fig 2: Checking Harness And Connector (Transmission Control Switch - Battery And Body Ground)

   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
   C47-6 (IG) - Body ground	Ignition switch ON	11 to 14 V
   C47-6 (IG) - Body ground	Ignition switch off	Below 1 V

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C47-11 (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 ECM connector.
   Fig 3: Checking Harness And Connector (Transmission Control Switch - ECM)

   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
   A35-14 (S) - Body ground	Ignition switch ON Shift lever in S, "+" or "-"	11 to 14 V
   A35-14 (S) - Body ground	Ignition switch ON Shift lever not in S, "+" or "-"	Below 1 V

3. Turn the ignition switch off.
4. Disconnect the spiral cable with sensor sub-assembly connector.
5. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A35-16 (SFTU) - Body ground	Shift lever held in "+" (Up-shift)	Below 1 Ω
   A35-51 (SFTD) - Body ground	Shift lever held in "-" (Down-shift)	Below 1 Ω
   A35-16 (SFTU) - Body ground	Shift lever in S	10 kΩ or higher
   A35-51 (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   5