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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 245 (Active Noise Control System (Except Hybrid) - Diagnostics - Introduction) >> ACTIVE NOISE CONTROL SYSTEM (for Gasoline Model) >> Terminals Of Ecu [09/2022 - ] >> Terminals Of Ecu [09/2022 - ]

Terminals Of Ecu [09/2022 - ]

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  1. STEREO COMPONENT EQUALIZER ASSEMBLY 
    Fig 1: Stereo Component Equalizer Assembly Connector End View
    GTY810509Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    G15-1 (CANH) P CAN communication signal - -
    G15-2 (ACK1) V Serial communication (UART) signal - -
    G15-3 (NEI) - G15-28 (GND) LA-B - LA Engine pulse signal Idling with warm engine Pulse generation
    (See waveform 1)
    G15-5 (MC3+) - G15-28 (GND) W - LA Active noise control microphone input signal No. 3 active noise control microphone tapped with finger Pulse generation
    G15-6 (MC2+) - G15-28 (GND) W - LA Active noise control microphone input signal No. 2 active noise control microphone tapped with finger Pulse generation
    G15-7 (MC1+) - G15-28 (GND) V - LA Active noise control microphone input signal No. 1 active noise control microphone tapped with finger Pulse generation
    G15-10 (CH3+) - G15-28 (GND) W- LA Active noise control microphone output signal Active noise control system operating Pulse generation
    G15-11 (CH2+) - G15-28 (GND) L - LA Active noise control microphone output signal Active noise control system operating Pulse generation
    G15-12 (CH1+) - G15-28 (GND) BR - LA Active noise control microphone output signal Active noise control system operating Pulse generation
    G15-14 (+B) - G15-28 (GND) LA-R - LA Power source Always 11 to 14 V
    G15-15 (CANL) W CAN communication signal - -
    G15-16 (ACK2) BE Serial communication (UART) signal - -
    G15-17 (ACNT) - G15-28 (GND) SB - LA Active noise control system control signal Engine switch on (IG) Below 1 V
    Engine switch on (ACC) 4.5 V or higher
    G15-19 (MC3-) - G15-28 (GND) SB - LA Active noise control microphone input signal Always Below 1 Ω
    G15-20 (MC2-) - G15-28 (GND) SB - LA Active noise control microphone input signal Always Below 1 Ω
    G15-21 (MC1-) - G15-28 (GND) LG - LA Active noise control microphone input signal Always Below 1 Ω
    G15-24 (CH3-) - G15-28 (GND) Y - LA Active noise control microphone output signal Active noise control system operating Pulse generation
    G15-25 (CH2-) - G15-28 (GND) R - LA Active noise control microphone output signal Active noise control system operating Pulse generation
    G15-26 (CH1-) - G15-28 (GND) G - LA Active noise control microphone output signal Active noise control system operating Pulse generation
    G15-27 (IGP) - G15-28 (GND) LA-SB - LA Power source (IG) Engine switch on (IG) 11 to 14 V
    G15-28 (GND) - Body ground LA - Body ground Ground Always Below 1 Ω
    1. Waveform 1

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. The waveform fluctuates according to engine speed.

      Fig 2: Waveform 1
      GTY778476Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Item Condition
      Measurement terminal G15-3 (NEI) - G15-28 (GND)
      Tool setting 5 V/DIV., 20 ms./DIV.
      Vehicle condition Idling after warming up
  2. STEREO COMPONENT AMPLIFIER ASSEMBLY 
    Fig 3: Stereo Component Amplifier Assembly Connector End View
    GTY830738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    G12-2 (ACK1) V Serial communication (UART) signal - -
    G12-3 (ACNT) - G11-3 (GND) SB - W-B Active noise control system control signal Active noise control system operating Below 1 V
    Active noise control system not operating 4.5 V or higher
    G12-6 (AN3+) - G11-3 (GND) W - W-B Active noise control microphone input signal Active noise control system operating Pulse generation
    G12-7 (AN2+) - G11-3 (GND) L - W-B Active noise control microphone input signal Active noise control system operating Pulse generation
    G12-8 (AN1+) - G11-3 (GND) BR - W-B Active noise control microphone input signal Active noise control system operating Pulse generation
    G12-10 (ACK2) BE Serial communication (UART) signal - -
    G12-13 (ASG1) - G11-3 (GND) Shielded - W-B Shield ground Always Below 1 Ω
    G12-14 (AN3-) - G11-3 (GND) Y - W-B Active noise control microphone input signal Active noise control system operating Pulse generation
    G12-15 (AN2-) - G11-3 (GND) R - W-B Active noise control microphone input signal Active noise control system operating Pulse generation
    G12-16 (AN1-) - G11-3 (GND) G - W-B Active noise control microphone input signal Active noise control system operating Pulse generation
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