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Terminals Of Ecu

  1. CHECK RADIO RECEIVER 
    Fig 1: Identifying Radio Receiver Terminals
    G04833493Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D10 receiver connector.
    2. Measure the resistance and voltage of the wire harness side connector.

      Standard: 

      RADIO RECEIVER CONNECTOR TERMINALS VOLTAGE AND RESISTANCE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND (D10-7)- Body ground W-B - Body ground Ground Always Below 1 Ω
      ACC (D10-3)- GND (D10-7) GR - W-B ACC power supply Ignition switch ACC 11 to 14 V
      B (D10-4)- GND (D10-7) L-W-B Battery power supply Always 11 to 14 V

      HINT:

      If the results are not as specified, there may be a malfunction in the wire harness.

    3. Reconnect the D10 receiver connector.
    4. Measure the voltage and resistance of the connector.

      Standard: 

      TERMINAL DESCRIPTION AND SPECIFIED CONDITION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      FR+ (D10-1)- GND (D10-7) GR - W-B Sound signals (front right) Audio system operating Waveform synchronized with sound output
      FL+ (D10-2)- GND (D10-7) P-W-B Sound signals (front left) Audio system operating Waveform synchronized with sound output
      FR- (D10-5)- GND (D10-7) Y-W-B Sound signals (front right) Audio system operating Waveform synchronized with sound output
      FL- (D10-6)- GND (D10-7) V-W-B Sound signals (front left) Audio system operating Waveform synchronized with sound output
      RR+ (D11-1)- GND (D10-7) R-W-B Sound signals (rear right) Audio system operating Waveform synchronized with sound output
      RL+ (D11-2)- GND (D10-7) B-W-B Sound signals (rear left) Audio system operating Waveform synchronized with sound output
      RR- (D11-3)- GND (D10-7) W-W-B Sound signals (rear right) Audio system operating Waveform synchronized with sound output
      RL- (D11-6)- GND (D10-7) Y-W-B Sound signals (rear left) Audio system operating Waveform synchronized with sound output
      ANT (D10-8)- GND (D10-7) B-W-B Power source of antenna Radio switch ON (AM or FM) 11 to 14 V
      ARI (D74-15)- GND (D10-7) R-W-B Sound signal (Right) External device playing (When stereo jack adapter used) Waveform synchronized with sound output
      ASGN (D74-16) GND (D10-7) B - W-B *1
      W - W-B *2      		 Ground (Shielded) Always Below 1 Ω
      ALI (D74-17)- GND (D10-7) B - W-B *1
      W - W-B *2      		 Sound signal (Left) External device playing (When stereo jack adapter used) Waveform synchronized with sound output
      AGND (D74-18)- GND (D10-7) (Shielded)- W-B Ground (Shielded) Always Below 1 Ω
      AUXI (D74-19)- GND (D10-7) R-W-B External device connection detection signal External device connected Below 1 Ω
      SPD (D74-3) W-W-B Speed signal Ignition switch ON, drive wheels turned slowly Pulse generation
      *1: for Hatchback
      *2: for Sedan

      HINT:

      If the results are not as specified, there may be a malfunction in the wire harness.

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