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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 515 (MULTIPLEX COMMUNICATION SYSTEM - DIAGNOSIS)TERMINALS OF ECU
2004 Toyota Matrix XR, FWD, Standard

Terminals Of Ecu

2004 Toyota Matrix XR, FWD, StandardSECTION Terminals Of Ecu
WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK GATEWAY ECU 
    Fig 1: Identifying Gateway ECU G1 Connector Terminals
    G02919779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the G1 ECU connector.
    2. Measure the voltage and resistance between each terminal of the wire harness side connector and body ground.

      Standard: 

      G1 ECU CONNECTOR TERMINALS DESCRIPTION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      BATT (G1-10) - Body ground Y - Body ground +B (BATT) power supply Constant 10 to 14 V
      IG (G1-1) - Body ground B - Body ground Ignition power supply Ignition switch ON 10 to 14 V
      ACC (G1-2) - Body ground P - Body ground ACC power supply Ignition switch ACC 10 to 14 V
      SIL (G1-7) - Body ground W - Body ground Bus "+" line During transmission Pulse generation
      MPD2 (G1-12) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      MPD1 (G1-3) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      GTX+ (G1-6) - Body ground B - Body ground AVC-LAN line Constant 10 kΩ or higher
      GTX- (G1-21) - Body ground W - Body ground AVC-LAN line Constant 10 kΩ or higher
      GND (G1-24) - Body ground W-B - Body ground Ground Constant Below 1 Ω

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

  2. CHECK A/C ECU 
    Fig 2: Identifying A8 ECU Connector Terminal
    G02919780Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A8 ECU connector.
    2. Measure the voltage and resistance between each terminal of the wire harness side connector and body ground.

      Standard: 

      A8 ECU TERMINALS DESCRIPTION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (A8-6) - Body ground Y - Body ground +B power supply Constant 10 to 14 V
      MPX+ (A8-3) - Body ground B - Body ground MPX line Constant 10 kΩ or higher
      MPX2+ (A8-11) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      GND (A8-1) - Body ground W-B - Body ground Ground Constant Below 1 Ω

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

  3. CHECK INSTRUMENT PANEL J/B ASSY (MULTIPLEX NETWORK BODY ECU) 
    Fig 3: Identifying Multiplex Network Body ECU Connector Terminals
    G02919781Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the B5 ECU connector.
    2. Disconnect the 1A, 1E and 1G J/B connectors.
    3. Measure the voltage and resistance of each terminal of the wire harness side connectors.

      Standard: 

      B5 ECU TERMINALS DESCRIPTION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      ECUB (1A-30) - Body ground R - Body ground +B (ECUB) power supply Constant 10 to 14 V
      MPX1 (1G-9) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      MPX2 (B5-15) - Body ground B - Body ground MPX line Constant 10 kΩ or higher
      GND (1E-17) - Body ground W-B - Body ground Ground Constant Below 1 Ω

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

  4. CHECK TRANSPONDER KEY ECU 
    Fig 4: Identifying T5 ECU Connector Terminals
    G02919782Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the T5 ECU connector.
    2. Measure the voltage and resistance of each terminal of the wire harness side connector.

      Standard: 

      T5 ECU CONNECTOR TERMINALS DESCRIPTION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      IG (T5-4) - Body ground O - Body ground +B (IG) power supply Constant 10 to 14 V
      MPX1 (T5-17) - Body ground B - Body ground MPX line Constant 10 kΩ or higher
      MPX2 (T5-16) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      GND (T5-22) - Body ground W-B - Body ground Ground Constant Below 1 Ω

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

  5. CHECK TRANSMISSION CONTROL ECU 
    Fig 5: Identifying T4 ECU Connector Terminals
    G02919783Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the T4 ECU connector.
    2. Measure the voltage and resistance of each terminal of the wire harness side connector.

      Standard: 

      T4 ECU CONNECTOR TERMINALS DESCRIPTION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (T4-1) - Body ground L - Body ground +B power supply Constant 10 to 14 V
      MPX1 (T4-19) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      MPX2 (T4-18) - Body ground B - Body ground MPX line Constant 10 kΩ or higher
      E1 (T4-15) - Body ground W-B - Body ground Ground Constant Below 1 Ω

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

  6. CHECK SMART ECU 
    Fig 6: Identifying S11 ECU Connector Terminals
    G02919784Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S11 ECU connector.
    2. Measure the voltage and resistance of each terminal of the wire harness side connector.

      Standard: 

      S11 ECM CONNECTOR TERMINALS DESCRIPTION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (S11-1) - Body ground O - Body ground +B power supply Constant 10 to 14 V
      MPX1 (S11-31) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      MPX2 (S11-32) - Body ground B - Body ground MPX line Constant 10 kΩ or higher
      E (S11-17) - Body ground W-B - Body ground Ground Constant Below 1 Ω

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

  7. CHECK METER ECU (COMBINATION METER) 
    Fig 7: Identifying C10 ECU Connector Terminals
    G02919785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the C10 ECU connector.
    2. Measure the voltage and resistance each terminal of the wire harness side connector.

      Standard: 

      C10 ECU CONNECTOR TERMINALS DESCRIPTION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      - (C10-21) - Body ground Y - Body ground +B power supply Constant 10 to 14 V
      MPX+ (C10-24) - Body ground B - Body ground MPX line Constant 10 kΩ or higher
      MPX- (C10-25) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      - (C10-14) - Body ground BR - Body ground Ground Constant Below 1 Ω

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

  8. CHECK POWER SOURCE CONTROL ECU 
    Fig 8: Identifying P6 ECU Connector Terminals
    G02919786Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P6 ECU connector.
    2. Measure the voltage and resistance of each terminal of the wire harness side connector.

      Standard: 

      P6 ECU CONNECTOR TERMINALS DESCRIPTION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      AM1 (P6-33) - Body ground R - Body ground +B (AM1) power supply Constant 10 to 14 V
      MPX1 (P6-7) - Body ground GR - Body ground MPX line Constant 10 kΩ or higher
      MPX2 (P6-24) - Body ground B - Body ground MPX line Constant 10 kΩ or higher
      GND2 (P6-6) - Body ground W-B - Body ground Ground Constant Below 1 Ω

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

RENDER: 1.0x

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