AUTOMATIC TRANSAXLE SYSTEM Transmission Control Switch Circuit

DESCRIPTION

After moving the shift lever to S, it is possible to switch the shift range between "1" (S1 range) and "6" (S6 range) using the transmission control switch.

Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" once lowers the shift range by one.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH)

   
   
   1. 

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

      Disconnect the transmission control switch connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition G36-4 (IG) - Body ground Ignition switch ON 11 to 14 V G36-4 (IG) - Body ground Ignition switch off Below 1 V

      Result
      Proceed to OK NG

   
   

   NG

   CHECK POWER SOURCE CIRCUIT

   OK

2. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)

   
   

   1. Disconnect the transmission control switch connector.

   2. 

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition G36-2 (E) - Body ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

3. INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)

   
   

   1. Disconnect the transmission control switch connector.

   2. 

      *A	for LHD
      *a	Component without harness connected (Transmission Control Switch)

      for LHD:

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

      Standard Resistance
      Tester Connection Condition Specified Condition 4 (IG) - 5 (S) Shift lever in S, "+" or "-" Below 1 Ω 3 (SFTU) - 2 (E) Shift lever held in "+" (Up-shift) Below 1 Ω 1 (SFTD) - 2 (E) Shift lever held in "-" (Down-shift) Below 1 Ω 4 (IG) - 5 (S) Shift lever not in S, "+" or "-" 10 kΩ or higher 3 (SFTU) - 2 (E) Shift lever in S 10 kΩ or higher 1 (SFTD) - 2 (E) Shift lever in S 10 kΩ or higher

   3. 

      *A	for RHD
      *a	Component without harness connected (Transmission Control Switch)

      for RHD:

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

      Standard Resistance
      Tester Connection Condition Specified Condition 4 (IG) - 5 (S) Shift lever in M, "+" or "-" Below 1 Ω 1 (SFTU) - 2 (E) Shift lever held in "+" (Up-shift) Below 1 Ω 3 (SFTD) - 2 (E) Shift lever held in "-" (Down-shift) Below 1 Ω 4 (IG) - 5 (S) Shift lever not in M, "+" or "-" 10 kΩ or higher 1 (SFTU) - 2 (E) Shift lever in M 10 kΩ or higher 3 (SFTD) - 2 (E) Shift lever in M 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY Click here

   OK

4. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

   
   
   1. 

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

      Disconnect the ECM connector.

   2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Condition Specified Condition A62-27 (S) - Body ground Ignition switch ON Shift lever in S, "+" or "-" 11 to 14 V A62-27 (S) - Body ground Ignition switch ON Shift lever not in S, "+" or "-" Below 1 V

   4. Turn the ignition switch off.

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

      Standard Resistance
      Tester Connection Condition Specified Condition A62-42 (SFTU) - Body ground Shift lever held in "+" (Up-shift) Below 1 Ω A62-43 (SFTD) - Body ground Shift lever held in "-" (Down-shift) Below 1 Ω A62-42 (SFTU) - Body ground Shift lever in S 10 kΩ or higher A62-43 (SFTD) - Body ground Shift lever in S 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR