HYBRID BATTERY SYSTEM TERMINALS OF ECU

A01UXS7E02
Text in Illustration
*1 Battery Smart Unit - -
ECU TERMINAL CHART

Terminal No.

(Symbols)

 Wiring Color Terminal Description Condition Standard (V)
X1-1 (TCO) - X1-7 (GCO) G - G HV battery intake air temperature sensor HV battery intake air temperature: -40 to 90°C (-40 to 194°F) 4.8 (-40°C (-40°F)) to 1.0 (90°C (194°F))
X1-2 (TB2) - X1-8 (GB2) L - L HV battery temperature sensor 2 HV battery temperature: -40 to 90°C (-40 to 194°F) 4.8 (-40°C (-40°F)) to 1.0 (90°C (194°F))
X1-3 (TB1) - X1-9 (GB1) W - W HV battery temperature sensor 1 HV battery temperature: -40 to 90°C (-40 to 194°F) 4.8 (-40°C (-40°F)) to 1.0 (90°C (194°F))
X1-4 (TBO) - X1-10 (GBO) R - R HV battery temperature sensor 0 HV battery temperature: -40 to 90°C (-40 to 194°F) 4.8 (-40°C (-40°F)) to 1.0 (90°C (194°F))
X1-5 (IB) - X1-12 (GIB) Y - B Battery current sensor Ignition switch ON (READY) 0.5 to 4.5
X1-6 (VIB) - X1-12 (GIB) BR - B Power source for battery current sensor Ignition switch ON (IG) 4.6 to 5.4
K32-3 (IGCT) - K32-6 (GND) L - W-B Control signal Ignition switch ON (READY) 11 to 14
K32-1 (BTH+) - K32-6 (GND) R - W-B Serial communication Ignition switch ON (IG)

Pulse generation

(waveform 1)
K32-4 (BTH-) - K32-6 (GND) G - W-B Serial communication Ignition switch ON (IG)

Pulse generation

(waveform 2)
K32-5 (FP0) - K32-6 (GND) B - W-B Battery cooling blower No. 0 monitor signal Cooling blower activated Pulse generation
K32-6 (GND) - Body ground W-B Ground Always (continuity check) Below 1 Ω

  1. Oscilloscope waveforms

    Tech Tips

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


    1. A01V19BE01

      Waveform 1

      Item Content
      Terminal K32-1 (BTH+) - K32-6 (GND)
      Equipment Setting 2 V/DIV., 500 μs/DIV.
      Condition Ignition switch ON (IG)

      Tech Tips

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

    2. A01V18NE01

      Waveform 2

      Item Content
      Terminal K32-4 (BTH-) - K32-6 (GND)
      Equipment Setting 2 V/DIV., 500 μs/DIV.
      Condition Ignition switch ON (IG)

      Tech Tips

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

    3. A01V0KVE02

      Waveform 3

      Item Content
      Terminal K32-5 (FP0) - K32-6 (GND)
      Equipment Setting 5 V/DIV., 1ms/DIV.
      Condition Battery cooling blower assembly operating (Active Test of cooling fan being performed)

      Tech Tips

      The frequency of the waveform will vary with the operating speed of the battery cooling blower assembly.