STOP AND START SYSTEM(for 3ZR-FAE) TERMINALS OF ECU

  1. ENGINE STOP AND START ECU

    A348145E01

    1. Disconnect the A65, A66 and G87 engine stop and start ECU connectors.

    2. Measure the resistance and voltage according to the value(s) in the table below.

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      A65-5 (+B) - Body ground

      B - Body ground

      Power source of engine stop and start ECU

      Ignition switch ON

      9.5 to 14 V

      A65-7 (BIN) - Body ground

      L - Body ground

      Battery

      Always

      9.5 to 14 V

      A65-8 (GND) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      A66-10 (NE) - Body ground

      P - Body ground

      Engine speed signal from ECM

      Always

      10 kΩ or higher

      A66-17 (VB-) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      G87-15 (CANH) - Body ground

      LG - Body ground

      CAN communication

      Always

      200 Ω or higher

      G87-16 (CANL) - Body ground

      W - Body ground

      CAN communication

      Always

      200 Ω or higher

      G87-17 (IG1) - Body ground

      L - Body ground

      Ignition or starter switch assembly*1 or push start switch assembly*2 signal

      Ignition switch ON

      9.5 to 14 V

      G87-19 (ACC) - Body ground

      W - Body ground

      Ignition or starter switch assembly*1 or push start switch assembly*2 signal

      Ignition switch ACC

      9.5 to 14 V

      G87-20 (IG2) - Body ground

      V - Body ground

      Ignition or starter switch assembly*1 or push start switch assembly*2 signal

      Ignition switch ON

      9.5 to 14 V

      • *1: w/o Entry and Start System

      • *2: w/ Entry and Start System

    3. Reconnect the A65, A66 and G87 engine stop and start ECU connectors.

    4. Measure the resistance and voltage according to the value(s) in the table below.

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      A65-6 (OPO) - A65-8 (GND)

      G - W-B

      Oil pump assembly with motor (continuously variable transaxle assembly) drive power source signal

      Either of the following conditions is met:

      • Engine stopped by stop and start control

      • Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed

      10.5 to 16 V

      A66-3 (BRE2) - Body ground

      G - Body ground

      Ground (vacuum sensor assembly (brake booster pressure sensor))

      Always

      Below 1 Ω

      A66-7 (BNT1) - A65-8 (GND)

      R - W-B

      Engine hood courtesy switch (Hood lock assembly) signal

      • Ignition switch ON

      • Engine stopped

      • Engine hood closed

      0 to 1.5 V

      • Ignition switch ON

      • Engine stopped

      • Engine hood open

      8 to 14 V

      A66-9 (OPM1) - A65-8 (GND)

      LG - W-B

      Oil pump assembly with motor (continuously variable transaxle assembly) directions signal

      Either of the following conditions is met:

      • Engine stopped by stop and start control

      • Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed

      Pulse generation

      (see waveform 1)

      A66-10 (NE) - A65-8 (GND)

      P - W-B

      Engine speed signal from ECM

      Idling after engine warmed up

      Pulse generation

      (see waveform 2)

      A66-13 (PB) - A66-3 (BRE2)

      B - G

      Vacuum sensor assembly (Brake booster pressure sensor) signal

      • Ignition switch ON

      • Absolute pressure of 40 kPa (300 mmHg, 11.8 in.Hg) applied to vacuum sensor assembly (brake booster pressure sensor)

      1.6 to 2.0 V

      • Ignition switch ON

      • Absolute pressure of 60 kPa (450 mmHg, 17.7 in.Hg) applied to vacuum sensor assembly (brake booster pressure sensor)

      2.2 to 2.6 V

      • Ignition switch ON

      • Atmospheric pressure applied to vacuum sensor assembly (brake booster pressure sensor)

      3.4 to 3.8 V

      A66-14 (BRVC) - A65-8 (GND)

      P - W-B

      Vacuum sensor assembly (Brake booster pressure sensor) power supply

      • Ignition switch ON

      • Engine stopped

      4.5 to 5.5 V

      A66-21 (STA) - A65-8 (GND)

      LG - W-B

      Starter pinion operation signal

      Cranking

      6.0 V or more

      A66-23 (STA2) - A65-8 (GND)

      V - W-B

      Starter motor operation signal

      Cranking

      6.0 V or more

      A66-27 (NOPM) - A65-8 (GND)

      W - W-B

      Oil pump assembly with motor (continuously variable transaxle assembly) speed signal

      Either of the following conditions is met:

      • Engine stopped by stop and start control

      • Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed

      Pulse generation

      (see waveform 3)

      A66-28 (CLL) - A65-8 (GND)

      W - W-B

      Park/neutral position switch assembly signal

      • Ignition switch ON

      • Shift lever not in P or N

      8 to 14 V

      • Ignition switch ON

      • Shift lever in P or N

      Below 3.0 V

      G87-2 (BO1) - A65-8 (GND)

      SB - W-B

      Backup boost converter signal

      Always

      10.5 to 16 V

      G87-3 (ACO) - A65-8 (GND)

      GR - W-B

      Backup boost converter signal

      Ignition switch ACC

      10.5 to 16 V

      G87-11 (IGO2) - A65-8 (GND)

      P - W-B

      Backup boost converter signal

      Ignition switch ON

      10.5 to 16 V

      G87-12 (IGO1) - A65-8 (GND)

      L - W-B

      Backup boost converter signal

      Ignition switch ON

      10.5 to 16 V

      G87-17 (IG1) - A65-8 (GND)

      L - W-B

      Ignition or starter switch assembly*1 or push start switch assembly*2 signal

      Ignition switch ACC

      Below 1 V

      Ignition switch ON

      9.5 to 14 V

      G87-19 (ACC) - A65-8 (GND)

      W - W-B

      Ignition or starter switch assembly*1 or push start switch assembly*2 signal

      Ignition switch off

      Below 1 V

      Ignition switch ACC

      9.5 to 14 V

      G87-20 (IG2) - A65-8 (GND)

      V - W-B

      Ignition switch signal

      Ignition or starter switch assembly*1 or push start switch assembly*2 signal

      Ignition switch ACC

      Below 1 V

      Ignition switch ON

      9.5 to 14 V

      G87-23 (ECAN) - A65-8 (GND)

      V - W-B

      Stop and start system cancel switch (Ecorun cancel switch assembly) signal

      • Ignition switch ON

      • Stop and start system cancel switch (Ecorun cancel switch assembly) pressed

      0 to 1.5 V

      • Ignition switch ON

      • Stop and start system cancel switch (ecorun cancel switch assembly) not pressed

      8 to 14 V

      • *1: w/o Entry and Start System

      • *2: w/ Entry and Start System

    5. A329962E01

      Waveform 1

      Item

      Content

      Tester Connection

      A66-9 (OPM1) - A65-8 (GND)

      Tool Setting

      5 V/DIV.,5 ms./DIV.

      Condition

      Either of the following conditions is met:

      • Engine stopped by stop and start control

      • Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed
    6. A318633E03

      Waveform 2

      Item

      Content

      Tester Connection

      A66-10 (NE) - A65-8 (GND)

      Tool Setting

      5 V/DIV., 2 ms./DIV.

      Condition

      Idling after engine warmed up
    7. A112562E03

      Waveform 3

      Item

      Content

      Tester Connection

      A66-27 (NOPM) - A65-8 (GND)

      Tool Setting

      5 V/DIV.,5 ms./DIV.

      Condition

      Either of the following conditions is met:

      • Engine stopped by stop and start control

      • Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed