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Terminals Of Ecu

Fig 1: Plugin Charge Control ECU Assembly Connector Terminal Identification
GTY331209Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION

*a Component without harness connected
(Plugin Charge Control ECU Assembly)		 - -
PLUGIN CHARGE CONTROL ECU ASSEMBLY

Terminal No.
(Symbol)		 Wiring Color Terminal Description Condition Specified Condition
z12-18 (CHRQ) - S31-14 (E1) - Electric vehicle charger assembly operation request signal Plug-in charging 7.5 to 8.5 V
Power switch on (IG), not plug-in charging 0 to 1.5 V
z12-22 (ILMT) - S31-14 (E1) - Electric vehicle charger assembly AC input current limit command signal Plug-in charging Pulse generation
(Waveform 1)
z12-23 (VAC) - z12-21 (CGND) - Electric vehicle charger assembly AC input side voltage sensor Power switch on (IG), electric vehicle charger cable assembly not connected 4.83 to 6.16 V
z12-24 (ICHG) - z12-21 (CGND) - Electric vehicle charger assembly output side current sensor Power switch on (IG), electric vehicle charger cable assembly not connected 1.64 to 2.36 V
Plug-in charging 1.64 to 7.0 V
z12-25 (VCHG) - z12-21 (CGND) - Electric vehicle charger assembly output side voltage sensor Power switch on (IG), electric vehicle charger cable assembly not connected 1.72 to 2.22 V
Plug-in charging 1.72 to 6.0 V
z12-29 (CHST) - S31-14 (E1) - Electric vehicle charger assembly operation status Power switch on (IG) (charging stand-by) → Plug-in charging Pulse generation
(Waveform 2)
z12-30 (CHPW) - S31-14 (E1) - Electric vehicle charger assembly output power command signal Plug-in charging Pulse generation
(Waveform 3)
S31-2 (PISW) - S31-3 (CPG) R - Y Charging connector connection signal Power switch on (IG), electric vehicle charger cable assembly not connected 4.2 to 4.8 V
Power switch on (IG), electric vehicle charger cable assembly connected and latch release button (PI switch) pressed 2.5 to 3.1 V
Power switch on (IG), electric vehicle charger cable assembly connected and latch release button (PI switch) not pressed 1.2 to 1.8 V
S31-4 (CHRB) - S31-27 (E01) SB - W-B CHRB relay operation signal Power switch on (IG), electric vehicle charger cable assembly not connected 0 to 1.5 V
Plug-in charging 10 to 14 V
S31-9 (PILB) - S31-14 (E1) B - W-B Charging indicator Power switch on (IG), charging indicator turned off 11 to 14 V
Charging, charging indicator illuminated 1.5 to 4.5 V
S31-10 (IG2) - S31-14 (E1) R - W-B IG2 signal Power switch on (IG) 11 to 14 V
S31-11 (AM21) - S31-14 (E1) SB - W-B Constant power source Power switch on (IG) 11 to 14 V
S31-12 (CA4H) - S31-14 (E1) L - W-B CAN communication signal
(Plug-in Bus)		 Power switch on (IG) Pulse generation
(Waveform 4)
S31-13 (CA4L) - S31-14 (E1) W - W-B CAN communication signal
(Plug-in Bus)		 Power switch on (IG) Pulse generation
(Waveform 4)
S31-15 (CHRG) - S31-27 (E01) P - W-B CHRG relay operation signal Power switch on (IG), electric vehicle charger cable assembly not connected 0 to 1.5 V
Plug-in charging 10 to 14 V
S31-16 (PTML) - S31-14 (E1) G - W-B Charging timer indicator Charging timer function is set (Charging timer indicator illuminated) 7 to 13 V
S31-17 (PTMS) - S31-14 (E1) V - W-B Charging timer switch status Charging timer switch pressed 0 to 1.5 V
Charging timer switch not pressed 11 to 14 V
S31-21 (CPLT) - S31-3 (CPG) G - Y Charge voltage judgment and allowable amperage recognition signals Plug-in charging Pulse generation
(Waveform 5)
S31-23 (+B1) - S31-14 (E1) B - W-B Charging power source Power switch on (IG) 11 to 14 V
S31-24 (MREL) - S31-14 (E1) W - W-B PIMR relay operation signal Power switch on (IG) 11 to 14 V
S31-25 (CA1H) - S31-14 (E1) B - W-B CAN communication signal
(V1 Bus)		 Power switch on (IG) Pulse generation
(Waveform 6)
S31-26 (CA1L) - S31-14 (E1) W - W-B CAN communication signal
(V1 Bus)		 Power switch on (IG) Pulse generation
(Waveform 6)
S31-29 (LDLP) - S31-14 (E1) V - W-B Charging port lid switch signal Power switch on (IG), charging port lid open 5 to 10 V
  1. Oscilloscope waveforms 

    HINT: 

    Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.

    1. Waveform 1 (Electric vehicle charger assembly AC input current limit command signal)
      Item Content
      Terminal z12-22 (ILMT) - S31-14 (E1)
      Equipment Setting 5 V/DIV., 50 ms/DIV.
      Condition Plug-in charging

      HINT: 

      Duty ratio varies by the AC input current limit value of the electric vehicle charger assembly.

      Fig 2: Identifying Waveform 1
      GTY333909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Waveform 2 (Electric vehicle charger assembly operation status)
      Item Content
      Terminal z12-29 (CHST) - S31-14 (E1)
      Equipment Setting 5 V/DIV., 50 ms/DIV.
      Condition Power switch on (IG) (charging stand-by) → Plug-in charging
      Fig 3: Identifying Waveform 2
      GTY338449Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Power switch on (IG) (charging stand-by)
      *b Plug-in charging
    3. Waveform 3 (Electric vehicle charger assembly output power command signal)
      Item Content
      Terminal z12-30 (CHPW) - S31-14 (E1)
      Equipment Setting 5 V/DIV., 50 ms/DIV.
      Condition Plug-in charging

      HINT: 

      Duty ratio varies by the output power command value of the electric vehicle charger assembly.

      Fig 4: Identifying Waveform 3
      GTY333909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Waveform 4 (CAN communication signal (Plug-in Bus))
      Item Content
      Terminal CH1: S31-12 (CA4H) - S31-14 (E1)
      CH2: S31-13 (CA4L) - S31-14 (E1)
      Equipment Setting 1 V/DIV., 50 μs/DIV.
      Condition Power switch on (IG)

      HINT: 

      The waveform will vary depending on the content of the digital communication (digital signal).

      Fig 5: Identifying Waveform 4
      GTY324578Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Waveform 5 (Charge voltage judgment and allowable amperage recognition signals)
      Item Content
      Terminal S31-21 (CPLT) - S31-3 (CPG)
      Equipment Setting 5 V/DIV., 500 μs/DIV.
      Condition Plug-in charging

      HINT: 

      Duty ratio varies by the AC input allowable amperage of the charging cable and charging station.

      Fig 6: Identifying Waveform 5
      GTY327789Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Waveform 6 (CAN communication signal (V1 Bus))
      Item Content
      Terminal CH1: S31-25 (CA1H) - S31-14 (E1)
      CH2: S31-26 (CA1L) - S31-14 (E1)
      Equipment Setting 1 V/DIV., 50 μs/DIV.
      Condition Power switch on (IG)

      HINT: 

      The waveform will vary depending on the content of the digital communication (digital signal).

      Fig 7: Identifying Waveform 6
      GTY324578Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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