HYBRID BATTERY SYSTEM TERMINALS OF ECU

A01KR2PC03
*1 Battery Voltage Sensor - -
ECU TERMINAL CHART

Terminal No.

(Symbols)

 Wiring Color Terminal Description Condition Standard (V)
z8-1 (TCO) - z8-7 (GCO) G - G Intake air temperature sensor 0 HV battery temperature: -40 to 90 °C (-40 to 194 °F) 4.8 (-40 °C (-40 °C)) to 1.0 (90 °C (194 °F))
z8-2 (TB2) - z8-8 (GB2) L - L Battery temperature sensor 2 HV battery temperature: -40 to 90 °C (-40 to 194 °F) 4.8 (-40 °C (-40 °C)) to 1.0 (90 °C (194 °F))
z8-3 (TB1) - z8-9 (GB1) W - W Battery temperature sensor 1 HV battery temperature: -40 to 90 °C (-40 to 194 °F) 4.8 (-40 °C (-40 °C)) to 1.0 (90 °C (194 °F))
z8-4 (TBO) - z8-10 (GBO) R - R Battery temperature sensor HV battery temperature: -40 to 90 °C (-40 to 194 °F) 4.8 (-40 °C (-40 °C)) to 1.0 (90 °C (194 °F))
z8-5 (IB) - z8-12 (GIB) Y - B Current sensor Power switch on (READY) 0.5 to 4.5
z8-6 (VIB) - z8-12 (GIB) BR - B Power source for battery current sensor Power switch on (IG) 4.5 to 5.5
L48-3 (IGCT) - L48-6 (GND) L - W-B Control signal Power switch on (READY) 11 to 14
L48-1 (BTH+) - L48-6 (GND) R - W-B Serial communication Power switch on (IG)

Pulse generation

(waveform 1)
L48-4 (BTH-) - L48-6 (GND) G - W-B Serial communication Power switch on (IG)

Pulse generation

(waveform 2)
L48-5 (FP0) - L48-6 (GND) B - W-B Battery cooling blower No. 0 monitor signal Cooling blower activated Pulse generation
L48-6 (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. A01KRP2E01

      Waveform 1

      Item Content
      Terminal L48-1 (BTH+) - L48-6 (GND)
      Equipment Setting 2 V/DIV., 500 μs/DIV.
      Condition Power switch on (IG)

      Tech Tips

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

    2. A01KTSRE01

      Waveform 2

      Item Content
      Terminal L48-4 (BTH-) - L48-6 (GND)
      Equipment Setting 2 V/DIV., 500 μs/DIV.
      Condition Power switch on (IG)

      Tech Tips

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

    3. A01KU1VN04

      Waveform 3

      Item Content
      Terminal L48-5 (FP0) ←→ L48-6 (GND)
      Equipment Setting 5 V/DIV., 1 ms/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 (No. 0).