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Terminals Of Ecu

  1. AIR CONDITIONING AMPLIFIER 
    Fig 1: Identifying Connector Terminals ECU
    G05755208Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    Check from the rear of the connector while it is connected to the A/C amplifier.

    TERMINALS DESCRIPTION AND SPECIFIED CONDITION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
    J58-1 (B) - J58-20 (GND) Y - W-B Power source (Back-up) Always 10 to 14 V
    J58-2 (MHTR) - J58-20 (GND) BR - W-B MIR/HTR relay signal Engine switch on (IG), REAR DEF switch: OFF 10 to 14 V
    J58-2 (MHTR) - J58-20 (GND) BR - W-B MIR/HTR relay signal Engine switch on (IG), REAR DEF switch: ON Below 1 V
    J58-3 (RDFG) - J58-20 (GND) B - W-B DEFOG relay signal Engine switch on (IG), FRONT DEF switch: OFF 10 to 14 V
    J58-3 (RDFG) - J58-20 (GND) B - W-B DEFOG relay signal Engine switch on (IG), FRONT DEF switch: ON Below 1 V
    J58-4 (HTR2) - J58-20 (GND) LG - W-B GLW RLY2 relay signal Engine switch on (IG) 10 to 14 V
    J58-4 (HTR2) - J58-20 (GND) LG - W-B GLW RLY2 relay signal Engine switch on (IG) Engine running at 850 rpm or more, Ambient temperature 0°C (32°F) or less, Engine coolant temperature 69°C (156°F) or less, Temperature switch: MAX HOT, Blower switch: LO Below 1 V
    J58-5 (SOL+) - J58-20 (GND) G-W-B A/C compressor operation signal Engine switch on (IG), A/C switch: ON Pulse generation (See  awaveform 1)
    J58-11 (BLW) - J58-20 (GND) O-W-B Blower motor speed control signal Engine switch on (IG), Blower switch: ON Pulse generation (See  bwaveform 2)
    J58-13 (PRE) - J58-38 (SG-2) V-P Pressure sensor signal Start engine, Operate A/C system, Refrigerant pressure: Abnormal pressure (more than 3,030 kPa (31.0 kgf/cm, 440 psi)) 4.7 V or higher
    J58-13 (PRE) - J58-38 (SG-2) V-P Pressure sensor signal Start engine, Operate A/C system, Refrigerant pressure: Abnormal pressure (less than 180 kPa (1.9 kgf/cm, 27 psi)) Below 0.7 V
    J58-13 (PRE) - J58-38 (SG-2) V-P Pressure sensor signal Start engine, Operate A/C system, Refrigerant pressure: Normal pressure (less than 3,030 kPa (31.0 kgf/cm, 440 psi) and more than 180 kPa (1.9 kgf/cm, 27 psi)) 0.7 to 4.7 V
    J58-14 (TSP) - J58-20 (GND) P-W-B Passenger side solar sensor signal Engine switch on (IG), Solar sensor subjected to electric light 0.8 to 4.3 V
    J58-U (TSP) - J58-20 (GND) P-W-B Passenger side solar sensor signal Engine switch on (IG), Solar sensor is covered with a cloth Below 0.8 V
    J58-16 (TR) - J58-19 (SG-1) G-L Room temperature sensor signal Engine switch on (IG), Cabin temperature: 25°C (77°F) 1.6 to 1.8 V
    J58-16 (TR) - J58-19 (SG-1) G-L Room temperature sensor signal Engine switch on (IG), Cabin temperature: 40°C (104°F) 0.8 to 1.0 V
    J58-18 (SG-3)(2) - Body ground GR - Body ground Ground for low pressure sensor Always Below 1 V
    J58-19 (SG-1) - Body ground L - Body ground Ground for room temperature sensor Always Below 1 V
    J58-20 (GND) - Body ground W-B - Body ground Ground for main power supply Always Below 1 V
    J58-21 (IG+) - J58-20 (GND) B - W-B Power source (IG) Engine switch on (IG) 10 to 14 V
    J58-21 (IG+) - J58-20 (GND) B - W-B Power source (IG) Engine switch off Below 1 V
    J58-23 (HTR1) - J58-20 (GND) L - W-B GLW RLY1 relay signal Engine switch on (IG) 10 to 14 V
    J58-23 (HTR1) - J58-20 (GND) L-W-B GLW RLY1 relay signal Engine switch on (IG) Engine running at 850 rpm or more, Ambient temperature 0°C (32°F) or less, Engine coolant temperature 69°C (156°F) or less, Temperature switch: MAX HOT, blower switch: LO Below 1 V
    J58-26 (S5-2) - J58-38 (SG-2) W - P Power supply for pressure sensor Engine switch on (IG), A/C switch: ON 4.5 to 5.5 V
    J58-26 (S5-2) - J58-38 (SG-2) W - P Power supply for pressure sensor Engine switch on (IG), A/C switch: OFF Below 1 V
    J58-27 (S5-3)(2) - J58-18 (SG-3) O - GR Power supply for low pressure sensor Engine switch on (IG), A/C switch: ON 4.5 to 5.5 V
    J58-27 (S5-3)(2) - J58-18 (SG-3) O - GR Power supply for low pressure sensor Engine switch on (IG), A/C switch: OFF Below 1 V
    J58-30 (MPX+) - J58-20 (GND) BR - W-B Multiplex communication system Engine idling after engine warmed up Pulse generation
    J58-31 (MPX-) - J58-20 (GND) BR - W-B Multiplex communication system Engine idling after engine warmed up Pulse generation
    J58-32 (PSW)(2) - J58-18 (SG-3) P - GR Low pressure sensor signal Start engine, operate A/C system, Refrigerant pressure: Normal pressure (Less than 980 kPa (10.0 kgf/cm2 , 142 psi) and 180 kPa (1.8 kgf/cm2 , 26 psi)) 1.1 to 4.7 V
    J58-33 (DGS1)(1) - J58-39 (SG-6) R - Y Exhaust gas sensor signal (Nox) After 30 seconds from engine switch on (IG) and sensor is exposed to exhaust gas 1.0 to 4.5 V
    J58-34 (DGS)(1) - J58-39 (SG-6) BR - Y Exhaust gas sensor signal (HC, CO) After 30 seconds from engine switch on (IG) and sensor is exposed to exhaust gas 1.0 to 4.5 V
    J58-35 (TSD) - J58-20 (GND) LG - W-B Driver side solar sensor signal Engine switch on (IG), Solar sensor subjected to electric light 0.8 to 4.3 V
    J58-35 (TSD) - J58-20 (GND) LG - W-B Driver side solar sensor signal Engine switch on (IG), Solar sensor is covered with a cloth Below 0.8 V
    J58-38 (SG-2) - Body ground P - Body ground Ground for pressure sensor Always Below 1 V
    J58-39 (SG-6)(1) - Body ground Y - Body ground Ground for exhaust gas sensor Always Below 1 V
    e1-2 (BUSG) - Body ground - Ground for BUS IC Always Below 1 V
    e1-3 (BUS) - e1-2 (BUS G) - BUS IC control signal Engine switch off → on (IG) Pulse generation
    e1-4 (B BUS) - e1-2 (BUS G) - Power supply for BUS IC Engine switch on (IG) 10 to 14 V
    e1-4 (BBUS) - e1-2 (BUS G) - Power supply for BUS IC Engine switch off Below 1 V
    e1-5 (SG) - Body ground - Ground for evaporator temperature sensor signal Always Below 1 V
    e1-6 (TE) - e1-5 (SG) - Evaporator temperature sensor signal Engine switch on (IG), Evaporator temperature 0°C (32°F) 2.0 to 2.4 V
    e1-6 (TE) - e1-5 (SG) - Evaporator temperature sensor signal Engine switch on (IG), Evaporator temperature 15°C (59°F) 1.4 to 1.8V
    (1) 2GR-FSE
    (2) for M/T
    1. Waveform 1:
      WAVEFORM REFERENCE GRAPH

      Item Contents
      Terminal No. (Symbols) J58-5 (SOL+) - J58-20 (GND)
      Tool Setting 5V/DIV., 500 μs/DIV.
      Vehicle Condition Engine switch on (IG) A/C switch: ON
      Fig 2: Identifying Waveform 1
      G04978885Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Waveform 2:
      WAVEFORM REFERENCE CHART

      Item Contents
      Terminal No. (Symbols) J58-11 (BLW) - J58-20 (GND)
      Tool Setting 1 V/DIV., 500 μs/DIV.
      Vehicle Condition Engine switch on (IG)
      Blower switch: ON
      Fig 3: Identifying Waveform 3
      G04978887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. MULTI-DISPLAY (w/ NAVIGATION SYSTEM) 
    Fig 4: Identifying J50 Connector Terminals
    G05831371Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINALS DESCRIPTION AND SPECIFIED CONDITION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
    J50-10 (GND) - Body ground W-B - Body ground Ground for heater control panel Always Below 1 V
    J50-3 (IG) - J50-10 (GND) B - W-B Power source (IG) Engine switch on (IG) 10 to 14 V
    J50-3 (IG) - J50-10 (GND) B - W-B Power source (IG) Engine switch off Below 1 V
    J50-2 (ACC) - J50-10 (GND) O - W-B Power source (ACC) Engine switch on (ACC) 10 to 14 V
    J50-2 (ACC) - J50-10 (GND) O - W-B Power source (ACC) Engine switch off Below 1 V
    J50-1 (+B1) - J50-10 (GND) Y - W-B Power source (Back-up) Always 10 to 14 V
  3. INTEGRATION CONTROL & PANEL ASSEMBLY (w/o NAVIGATION SYSTEM) 
    Fig 5: Identifying J54 Connector Terminals
    G05755211Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINALS DESCRIPTION AND SPECIFIED CONDITION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
    J54-4 (IG+) - J54-8 (E) B-W-B Power source (IG) Engine switch on (IG) 10 to 14 V
    J54-4 (IG+) - J54-8 (E) B-W-B Power source (IG) Engine switch off Below 1 V
    J54-5 (ACC) - J54-8 (E) O-W-B Power source (ACC) Engine switch on (ACC) 10 to 14 V
    J54-5 (ACC) - J54-8 (E) O-W-B Power source (ACC) Engine switch off Below 1 V
    J54-8 (E) - Body ground W-B - Body ground Ground for heater control panel Always Below 1 V
    J54-14 (B) - J54-8 (E) LG - W-B Power source (Back-up) Always 10 to 14 V
    Fig 6: Identifying Connector Terminals Of ECM
    G05831373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINALS DESCRIPTION AND SPECIFIED CONDITION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
    E3-10 (LCKI) - E4-7 (E1) B(1), GR(2) - BR Compressor lock sensor signal Engine idling, Blower switch: LO, A/C switch: ON Pulse generation (See  awaveform 3)
    E4-7 (E1) - Body ground BR - Body ground Ground for ECM Always Below 1 V
    E5-27 (ETAM)(2) - Body ground BR - Body ground Ground for ambient temperature sensor Always Below 1 V
    E5-30 (E3)(1) - Body ground BR - Body ground Ground for ambient temperature sensor Always Below 1 V
    A6-11 (ACMG)(2) - E4-7 (E1) L - BR Compressor operation signal Engine idling, Blower switch: LO, A/C switch: OFF 10 to 14 V
    A6-11 (ACMG)(2) - E4-7 (E1) L - BR Compressor operation signal Engine idling, Blower switch: LO, A/C switch: ON Below 1 V
    A6-13 (ACMG)(1) - E4-7 (E1) L - BR Compressor operation signal Engine idling, Blower switch: LO, A/C switch: OFF 10 to 14 V
    A6-13 (ACMG)(1) - E4-7 (E1) L - BR Compressor operation signal Engine idling, Blower switch: LO, A/C switch: ON Below 1 V
    A5-18 (TAM)(1) - E5-30 (E3)(1) V-R - BR Ambient temperature sensor signal Engine switch on (IG) at 25°C (77°F) 1.8 to 2.2 V
    A5-18 (TAM)(1) - E5-30 (E3)(1) V-R - BR Ambient temperature sensor signal Engine switch on (IG) at 40°C (104°F) 1.2 to 1.6 V
    A5-26 (TAM)(2) - A5-27 (ETAM)(2) V-R - BR Ambient temperature sensor signal Engine switch on (IG) at 25°C (77°F) 1.8 to 2.2 V
    A5-26 (TAM)(2) - A5-27 (ETAM)(2) V-R - BR Ambient temperature sensor signal Engine switch on (IG) at 40°C (104°F) 1.2 to 1.6V
    (1) 4GR-FSE
    (2) 2GR-FSE
    1. Waveform 3:
      WAVEFORM REFERENCE CHART

      Item Contents
      Terminal No. (Symbols) E3-10 (LCKI) - E4-7 (E1)
      Tool Setting 200 mV/DIV., 10 ms/DIV.
      Vehicle Condition Engine switch on (IG)
      Blower switch: LO
      A/C switch: ON
      Fig 7: Identifying Waveform 3
      G04978886Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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