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Terminals Of Ecu

  1. CHECK CERTIFICATION ECU 
    Fig 1: Identifying Terminals Of ECU Connector
    G04476077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S11 ECU connector.
    2. Measure the resistance and voltage of the wire harness side connector.
      CONNECTOR TERMINAL REFERENCE CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B1 (S11-1) - Body ground R - Body ground +B power supply Always 10 to 14 V
      IG (S11-18) - Body ground B - Body ground Ignition power supply Power switch OFF Below 1 V
      IG (S11-18) - Body ground B - Body ground Ignition power supply Power switch ON (IG) 10 to 14 V
      E (S11-17) - Body ground W-B - Body ground Ground Always Below 1 Ω
      TSW1 (S11-5) - Body ground B - Body ground Outside door handle LH lock switch signal Lock switch OFF 10 kΩ or higher
      TSW1 (S11-5) - Body ground B - Body ground Outside door handle LH lock switch signal Lock switch ON Below 1 Ω
      TSW2 (S11-6) - Body ground R - Body ground Outside door handle RH lock switch signal Lock switch OFF 10 kΩ or higher
      TSW2 (S11-6) - Body ground R - Body ground Outside door handle RH lock switch signal Lock switch ON Below 1 Ω
      TSW6 (S11-8) - Body ground B - Body ground Back door lock switch signal Back door lock switch OFF 10 kΩ or higher
      TSW6 (S11-8) - Body ground B - Body ground Back door lock switch signal Back door lock switch ON Below 1 Ω
      CNSL (S11-25) - Body ground W-B - Body ground Key cancel switch signal Key cancel switch OFF 10 kΩ or higher
      CNSL (S11-25) - Body ground W-B - Body ground Key cancel switch signal Key cancel switch ON Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the S11 ECU connector.
    4. Measure the voltage of the connector.
      CONNECTOR TERMINAL REFERENCE CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CLG1 (S11-13) - E (S11-17) P - W-B Driver door electrical key oscillator sensor signal All doors closed, all doors locked and power switch OFF Alternating between 5 V and below 1 V
      CLG1 (S11-13) - E (S11-17) P - W-B Driver door electrical key oscillator sensor signal Door unlocked or door open Below 1 V
      CLG2 (S11-14) - E (S11-17) R - W-B Front passenger door electrical key oscillator sensor signal All doors closed, all doors locked and power switch OFF Alternating between 5 V and below 1 V
      CLG2 (S11-14) - E (S11-17 R - W-B Front passenger door electrical key oscillator sensor signal Door unlocked or door open Below 1 V
      CLG5 (S11-36) - E (S11-17) G - W-B Indoor electrical key oscillator sensor signal 30 seconds after driver side door opened and closed, power switch OFF Alternating between 5 V and below 1 V
      CLG5 (S11-36) - E (S11-17) G - W-B Indoor electrical key oscillator sensor signal Within 30 seconds after driver side door opened and closed, power switch ON (IG) Below 1 V
      CLG7 (S11-38) - E (S11-17) BR - W-B Luggage electrical key oscillator inner sensor signal Back door opener switch OFF Alternating between 5 V and below 1 V
      CLG7 (S11-38) - E (S11-17) BR - W-B Luggage electrical key oscillator inner sensor signal Back door opener switch ON Below 1 V
      CLG8 (S11-39) - E (S11-17) O - W-B Luggage electrical key oscillator outer sensor signal Back door opener switch OFF Alternating between 5 V and below 1 V
      CLG8 (S11-39) - E (S11-17) O - W-B Luggage electrical key oscillator outer sensor signal Back door opener switch ON Below 1 V
      SEL1 (S11-23) - E (S11-17) Y - W-B Touch sensor activation control signal Key at least 3 m (9.8 ft.) away from closed and locked door 10 to 14 V
      SEL1 (S11-23) - E (S11-17) Y - W-B Touch sensor activation control signal Key is near closed and locked door Below 1 V
      SEL2 (S11-24) - E (S11-17) B - W-B Touch sensor activation control signal Key at least 3 m (9.8 ft.) away from closed and locked door 10 to 14 V
      SEL2 (S11-24) - E (S11-17) B - W-B Touch sensor activation control signal Key is near closed and locked door Below 1 V
      SEN1 (S11-21) - E (S11-17) R - W-B Touch sensor detection signal Outside door handle LH touched 10 to 14 V
      SEN1 (S11-21) - E (S11-17) R - W-B Touch sensor detection signal Outside door handle LH not touched Below 1 V
      SEN2 (S11-22) - E (S11-17) W - W-B Touch sensor detection signal Outside door handle RH touched 10 to 14 V
      SEN2 (S11-22) - E (S11-17) W - W-B Touch sensor detection signal Outside door handle RH not touched Below 1 V
      RDA3 (S11-29) - E (S11-17) L - W-B Door control receiver input signal With power switch OFF, no key and all doors closed Below 1 V
      RDA3 (S11-29) - E (S11-17) L - W-B Door control receiver input signal With power switch OFF, all doors closed and key is moved (outside of vehicle exterior detection area --> inside of detection area) Approx. 6 to 7 V
      PRG (S11-28) - E (S11-17) B - W-B Door control receiver output signal With power switch OFF, no key and all doors closed Below 1 V
      PRG (S11-28) - E (S11-17) B - W-B Door control receiver output signal With power switch OFF, all doors closed and key is moved (outside of vehicle exterior detection area --> inside of detection area) Approx. 6 to 7 V
      RCO (S11-12) - E (S11-17) L - W-B Power source With power switch OFF, no key and doors closed 0 to 5 V
      RCO (S11-12) - E (S11-17) L - W-B Power source With power switch OFF, all doors closed and key is moved (outside of vehicle exterior detection area --> inside of detection area) 5 V
      RSSI (S11-11) - E (S11-17) V - W-B Door control receiver output signal With power switch OFF, no key and all doors closed 0 to 5 V
      RSSI (S11-11) - E (S11-17) V - W-B Door control receiver output signal With power switch OFF, all doors closed and key is moved (outside of vehicle exterior detection area --> inside of detection area) Below 1 V
      RDA (S11-10) - E (S11-17) GR - W-B Door control receiver input signal With power switch OFF, no key and all doors closed Below 1 V
      RDA (S11-10) - E (S11-17) GR - W-B Door control receiver input signal With power switch OFF, all doors closed and key is moved (outside of vehicle exterior detection area --> inside of detection area) Approx. 6 to 7 V
      KSW (S11-4) - E (S11-17) Y - W-B Halfway switch input signal No key in key slot 10 to 14
      V KSW (S11-4) - E (S11-17 Y - W-B Halfway switch input signal Key inserted Below 1 V

      If the result is not as specified, the ECU may have a malfunction.

  2. CHECK DRIVER SIDE JUNCTION BLOCK (MAIN BODY ECU) 
    Fig 2: Identifying Driver Side Junction Block Connector Terminal (Main Body ECU)
    G04476078Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the 1A, 1B and 1E junction block connectors.
    2. Measure the voltage and resistance of the wire harness side connector.
      CONNECTOR TERMINAL REFERENCE CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      ECUB (1A-30) - Body ground R - Body ground +B (ECUB) power supply Always 10 to 14 V
      ALTB (1B-1) - Body ground W - Body ground +B (power system, generator system) power supply Always 10 to 14 V
      GND (1E-17) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the 1A, 1B and 1E junction block connectors.
    4. Measure the voltage of the connectors.
      CONNECTOR TERMINAL REFERENCE CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      PRG (B7-24) - GND (1E-17) B - W-B Door control receiver output signal With power switch OFF, no key and all doors closed 0 to 5 V
      PRG (B7-24) - GND (1E-17) B - W-B Door control receiver output signal With power switch OFF, all doors closed and key is moved (outside of vehicle exterior detection area --> inside of detection area) Below 1 V
      RDA (B7-23) - GND (1E-17) L - W-B Door control receiver input signal With power switch OFF, no key and all doors closed Below 1 V
      RDA (B7-23) - GND (1E-17) L - W-B Door control receiver input signal With power switch OFF, all doors closed and key is moved (outside of vehicle exterior detection area --> inside of detection area) Approx. 6 to 7 V

      If the result is not as specified, the body ECU may have a malfunction.

  3. CHECK TRANSPONDER KEY ECU 
    Fig 3: Identifying Transponder Key ECU Connector Terminal
    G04476079Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the T5 ECU connector.
    2. Measure the resistance and voltage of the wire harness side connector.
      CONNECTOR TERMINAL REFERENCE CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CPUB (T5-3) - GND (T5-22) L - W-B Battery Always 10 to 14 V
      IG (T5-4) - GND (T5-22) O - W-B Power switch (IG) Power switch OFF Below 1 V
      IG (T5-4) - GND (T5-22) O - W-B Power switch (IG) Power switch ON (IG) 10 to 14 V
      CUWS (T5-5) - GND (T5-22) B - W-B Halfway switch No key in key slot 10 kΩ or higher
      CUWS (T5-5) - GND (T5-22) B - W-B Halfway switch Key inserted Below 1 Ω
      AGND (T5-7) - GND (T5-22) P - W-B Ground Always Below 1 Ω
      GND (T5-22) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the T5 ECU connector.
    4. Measure the voltage of the connector.
      CONNECTOR TERMINAL REFERENCE CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CUWS (T5-5) -GND (T5-22) B - W-B Halfway switch No key in key slot 10 to 14 V
      CUWS (T5-5) -GND (T5-22) B - W-B Halfway switch Key inserted Below 1 V
      VC5 (T5-20) - GND (T5-22) Y - W-B Power source No key in key slot Below 1 V
      VC5 (T5-20) - GND (T5-22) Y - W-B Power source Key inserted 4.6 to 5.4 V
      CODE (T5-21) - AGND (T5-7) L - P Transponder key amplifier communication signal No key in key slot --> Key inserted Pulse generation (see WAVEFORM REFERENCE 1 )
      TXCT (T5-6) - AGND (T5-7) LG - P Transponder key amplifier communication signal No key in key slot --> Key inserted Pulse generation (see WAVEFORM REFERENCE 2 )
      HEV0 (T5-19) - GND (T5-22) W - W-B Hybrid vehicle control ECU output signal No key in key slot --> Key inserted Pulse generation (see WAVEFORM REFERENCE 3 )
      HEV1 (T5-18) - GND (T5-22) R - W-B Hybrid vehicle control ECU input signal Always Pulse generation (see WAVEFORM REFERENCE 4 )

      If the result is not as specified, the ECU may have a malfunction.

    5. Inspect using an oscilloscope.

      Waveform 1 (Reference) 

      WAVEFORM REFERENCE 1

      Item Content
      Symbols (Terminal No.) TXCT (T5-6) - GND (T5-22)
      Tool Setting 2.0 V/DIV., 10 msec./DIV.
      Condition Key inserted
      Fig 4: Identifying Waveform Graph 1
      G04476080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Inspect using an oscilloscope.

      Waveform 2 (Reference) 

      WAVEFORM REFERENCE 2

      Item Content
      Symbols (Terminal No.) CODE (T5-21) - GND (T5-22)
      Tool Setting 2.0 V/DIV., 10 msec./DIV.
      Condition Key inserted
      Fig 5: Identifying Waveform Graph 2
      G04476081Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Inspect using an oscilloscope.

      Waveform 3 (Reference) 

      WAVEFORM REFERENCE 3

      Item Content
      Symbols (Terminal No.) HEV0 (T5-19) - GND (T5-22)
      Tool Setting 10 V/DIV., 100 msec./DIV.
      Condition Power switch ON (IG)
      Fig 6: Identifying Waveform Graph 3
      G04476082Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Inspect using an oscilloscope.

      Waveform 4 (Reference) 

      WAVEFORM REFERENCE 4

      Item Content
      Symbols (Terminal No.) HEV1 (T5-18) - GND (T5-22)
      Tool Setting 10 V/DIV., 100 msec./DIV.
      Condition Always
      Fig 7: Identifying Waveform Graph 4
      G04476083Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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