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Home >> Toyota >> 2011 >> Camry Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 436 (Automatic Transaxle (U660E) (Diagnostic Codes & Circuit Tests) (Except Hybrid)) >> Automatic Transaxle System >> Circuit Tests >> Transmission Control Switch Circuit >> Procedure

Transmission Control Switch Circuit: Procedure

WARNING: This page is about a different car, the 2013 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH) 
    1. Disconnect the transmission control switch connector.
      Fig 1: Checking Harness And Connector (Battery - Transmission Control Switch)
      GTY319870Courtesy 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
      l44-4 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      TEXT IN ILLUSTRATION

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

    NG → CHECK POWER SOURCE CIRCUIT 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 2: Checking Harness And Connector (Transmission Control Switch - Body Ground)
      GTY319871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      l44-2 (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 

  3. INSPECT LOWER SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH) 
    1. Measure the resistance between each terminal of the transmission control switch when the shift lever is moved to each position.
      Fig 3: Measuring Resistance In Lower Shift Lever Assembly (Transmission Control Switch)
      GTY321610Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      l44-4 (IG) - l44-5 (S) Shift lever in S, "+" or "-" Below 1 Ω
      Shift lever not in S, "+" or "-" 10 kΩ or higher
      l44-3 (SFTU) - l44-2 (E) Shift lever held in "+"
      (Up-shift)      		 Below 1 Ω
      Shift lever not held in "+" 10 kΩ or higher
      l44-1 (SFTD) - l44-2 (E) Shift lever held in "-"
      (Down-shift)      		 Below 1 Ω
      Shift lever not held in "-" 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Transmission Control Switch)

    NG → See step   6 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM) 
    1. Connect the transmission control switch connector.
    2. Disconnect the ECM connector.
      Fig 4: Checking Harness And Connector (Transmission Control Switch - ECM)
      GTY316820Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the engine switch on (IG).
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      A25-37 (S) - Body ground
      • Engine switch on (IG)
      • Shift lever in S, "+" or "-"
      		 11 to 14 V
      A25-37 (S) - Body ground
      • Engine switch on (IG)
      • Shift lever not in S, "+" or "-"
      		 Below 1 V
    5. Turn the engine switch off.
    6. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A25-34 (SFTU) - Body ground Shift lever held in "+"
      (Up-shift)      		 Below 1 Ω
      Shift lever not held in "+" 10 kΩ or higher
      A25-50 (SFTD) - Body ground Shift lever held in "-"
      (Down-shift)      		 Below 1 Ω
      Shift lever not held in "-" 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 

  5. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE 
  6. REPLACE LOWER SHIFT LEVER ASSEMBLY (TRANSMISSION CONTROL SWITCH). Refer to  COMPONENTS 
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