HYBRID BATTERY SYSTEM > TERMINALS OF ECU

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A141504E03


ECU TERMINAL CHART 
Symbols
(Terminal No.)
Wiring Color
Terminal Description
Condition
Standard (V)
TC0 (z13-1) - GC0 (z13-11)
G - G
Intake air temperature sensor
Intake air temperature: -40 to 90°C (-40 to 194°F)
4.8 to 1.0
TB3 (z13-4) - GB3 (z13-14)
L - L
HV battery temperature sensor 3
HV battery temperature: -40 to 90°C (-40 to 194°F)
4.8 to 1.0
TB2 (z13-5) - GB2 (z13-15)
B - B
HV battery temperature sensor 2
HV battery temperature: -40 to 90°C (-40 to 194°F)
4.8 to 1.0
TB1 (z13-6) - GB1 (z13-16)
W - W
HV battery temperature sensor 1
HV battery temperature: -40 to 90°C (-40 to 194°F)
4.8 to 1.0
TB0 (z13-7) - GB0 (z13-17)
R - R
HV battery temperature sensor 0
HV battery temperature: -40 to 90°C (-40 to 194°F)
4.8 to 1.0
IB (z13-9) - GIB (z13-20)
Y - B
Battery Current
Power switch on (READY)
0.5 to 4.5
VIB (z13-10) - GIB (z13-20)
BR - B
Power source for battery current sensor
Power switch on (IG)
4.5 to 5.5
IGCT (Q2-1) - GND (Q2-5)
B - W-B
Control signal
Power switch on (READY)
9 to 14
BTH+ (Q2-2) - GND (Q2-5)
R - W-B
Serial communication
Power switch on (IG)
Pulse generation
(waveform 1)
BTH- (Q2-3) - GND (Q2-5)
G - W-B
Serial communication
Power switch on (IG)
Pulse generation
(waveform 2)
IDH (Q2-4) - GND (Q2-5)
P - W-B
Hybrid Vehicle Converter Cooling Fan Signal
Power switch on (IG)
Pulse generation
(waveform 3)
VM (Q2-8) - GND (Q2-5)
G - W-B
Cooling Fan Monitor Signal
Cooling fan activated
0 to 5
GND (Q2-5) - Body ground
W-B - Body ground
Ground
Always (continuity check)
Continuity
(Below 6 Ω)

Oscilloscope waveforms

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



    A112888E02
  1. Waveform 1
    Item
    Contents
    Terminal
    BTH+ (Q2-2) - GND (Q2-5)
    Equipment Setting
    2 V/DIV, 500 μs/DIV
    Condition
    Power switch on (IG)

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



  2. A112889E02
  3. Waveform 2
    Item
    Contents
    Terminal
    BTH- (Q2-3) - GND (Q2-5)
    Equipment Setting
    2 V/DIV, 500 μs/DIV
    Condition
    Power switch on (IG)

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



  4. A141821E01
  5. Waveform 3
    Item
    Contents
    Terminal
    IDH (Q2-4) - GND (Q2-5)
    Equipment Setting
    2 V/DIV, 2ms/DIV
    Condition
    Power switch on (IG)

    HINT:
    The frequency of the waveform differs according to operation conditions of the cooling fan of the hybrid vehicle converter.