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Shift Paddle Switch Circuit [10/2014 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (SHIFT PADDLE SWITCH CIRCUIT) 
    1. Disconnect the ECM connector.
      GTY587996Courtesy 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
      A18- 50 (SFTD) - Body ground Pull "-" continuously
      (Down-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      A18-34 (SFTU) - Body ground Pull "+" continuously
      (Up-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      TEXT IN ILLUSTRATION

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

    Result: 

    OK 

    GO TO TRANSMISSION CONTROL SWITCH CIRCUIT 

    (Refer to Transmission Control Switch Circuit [10/2014 - 10/2015]  or Transmission Control Switch Circuit [10/2015 - ] )

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - BODY GROUND) 
    1. Disconnect the negative (-) terminal cable from the battery.
    2. Wait for at least 90 seconds.
    3. Remove the steering wheel assembly.
    4. Remove the steering column cover.
    5. Disconnect the spiral cable connector.
    6. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D20-2 (ECC) - Body ground Always Below 1 Ω

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - ECM) 
    1. Disconnect the ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A18-50 (SFTD) - D20-7 (SDN) Always Below 1 Ω
      A18-50 (SFTD) or D20-7 (SDN) - Body ground Always 10 kΩ or higher
      A18-34 (SFTU) - D20-14 (SUP) Always Below 1 Ω
      A18-34 (SFTU) or D20-14 (SUP) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - SHIFT PADDLE SWITCH) 
    1. Remove the horn button assembly.
      GTY543487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the steering pad switch connector from the spiral cable sub-assembly.
    3. Measure the resistance according to the value(s) in the table below when the shift paddle switch is moved to each position.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      z9-6 (SUP) - z9-7 (ECC) Pull "+" continuously
      (Up-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      z9-12 (SDN) - z9-7 (ECC) Pull "-" continuously
      (Down-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Spiral Cable Sub-assembly)

    Result: 

    NG 

    See step  6

    Result: 

    OK 

    See step  5

  5. INSPECT SPIRAL CABLE SUB-ASSEMBLY 
    1. Inspect the spiral cable sub-assembly (Refer to INSPECTION [10/2014 - 10/2015] or INSPECTION [10/2015 - ] ).

    Result: 

    OK 

    CHECK FOR INTERMITTENT PROBLEMS 

    (Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [10/2014 - ] )

    Result: 

    NG 

    REPLACE SPIRAL CABLE SUB-ASSEMBLY 

    (Refer to COMPONENTS [10/2014 - ] )

  6. INSPECT TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH) 
    1. Disconnect the connector from the transmission shift switch LH and RH.
      GTY559585Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      TRANSMISSION SHIFT SWITCH LH:

      Tester Connection Condition Specified Condition
      C-3 (ECC) - C-2 (SFTD) Pull "-" continuously
      (Down-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      C-4 (ECC1) - C-2 (SFTD) Pull "-" continuously
      (Down-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      TRANSMISSION SHIFT SWITCH RH:

      Tester Connection Condition Specified Condition
      B-3 (SFTU) - B-2 (ECC1) Pull "+" continuously
      (Up-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Shift paddle switch LH)
      *b Component without harness connected
      (Shift paddle switch RH)

    Result: 

    NG 

    REPLACE TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH) 

    (Refer to COMPONENTS [10/2014 - ] )

    Result: 

    OK 

    See step  7

  7. INSPECT NO. 1 SWITCH WIRE 
    1. Connect the transmission shift switch LH and RH connector.
    2. Disconnect the No. 1 switch wire from steering pad switch connector.
      GTY554090Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A-3 (SFTD) - A-7 (ECC) Pull "-" continuously
      (Down-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      A-2 (SFTU) - A-7 (ECC) Pull "+" continuously
      (Down-shift)      		 Below 1 Ω
      Release 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Steering Pad Switch Connector)

    Result: 

    OK 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 SWITCH WIRE - SPIRAL CABLE SUB-ASSEMBLY) 

    Result: 

    NG 

    REPLACE NO. 1 SWITCH WIRE 

    (Refer to COMPONENTS [10/2014 - ] )

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