Terminals Of Ecu

CHECK TRANSPONDER KEY AMPLIFIER

Fig 1: Checking Transponder Key Amplifier
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1. Disconnect the 114 amplifier connector, and check the continuity between the terminal of the wire harness side connector and body ground.
  Standard:
  
  Fig 2: Terminal No And Condition Chart
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  If the result is not as specified, there may be a malfunction on the wire harness side.
2. Reconnect the 114 amplifier connector, and check the continuity or voltage of each terminal of the connector.
  Standard:
  
  Fig 3: Terminal No And Condition Chart
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  If the result is not as specified, the amplifier may have a malfunction.
3. Inspect using an oscilloscope.
  Waveform 1 (Reference):
  
  Fig 4: Waveform 1 (Reference) Chart
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  Fig 5: Waveform Graph
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  Waveform 2 (Reference):
  
  Fig 6: Waveform 2 (Reference) Chart
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  Fig 7: Waveform Graph
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CHECK TRANSPONDER KEY ECU ASSY

Fig 8: Identifying Transponder Key ECU Terminal Connector
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1. Disconnect the T11 ECU connector, and check the voltage or continuity between each terminal of the wire harness side connector.
  Standard:
  
  Fig 9: Terminal No And Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, there may be a malfunction on the wire harness side.
2. Reconnect the T11 ECU connector, and check the voltage between each terminal of the connector.
  Standard:
  
  Fig 10: Terminal No And Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, the ECU may have a malfunction.
3. Inspect using an oscilloscope.
  Waveform 1 (Reference):
  
  Fig 11: Waveform 1 (Reference) Chart
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  Fig 12: Waveform 1 Graph
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  Waveform 2 (Reference):
  
  Fig 13: Waveform 2 (Reference) Chart
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  Fig 14: Waveform 2 Graph
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  Waveform 3 (Reference):
  
  Fig 15: Waveform 3 (Reference) Chart
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  Fig 16: Waveform 3 Graph
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  Waveform 4 (Reference):
  
  Fig 17: Waveform 4 (Reference) Chart
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  Fig 18: Waveform 4 Graph
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CHECK ECM

Fig 19: Checking ECM
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1. Disconnect the E7 and E8 ECM connectors, and check the voltage or continuity between each terminal of the wire harness side connectors.
  Standard:
  
  Fig 20: Terminal No And Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, there may be a malfunction on the wire harness side.
2. Inspect using an oscilloscope.
  Waveform 1 (Reference):
  
  Fig 21: Waveform 1 (Reference) Chart
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  Fig 22: Waveform 1 Graph
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Waveform 2 (Reference):
  
  Fig 23: Waveform 2 (Reference) Chart
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  Fig 24: Waveform 2 Graph
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002