HYBRID BATTERY SYSTEM TERMINALS OF ECU
| *1 | Battery Voltage Sensor | - | - |
| Terminal No. (Symbol) |
Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| z12-1 (TC0) - z12-11 (GC0) | G - G | Intake air temperature sensor | HV battery temperature: -40 to 90°C (-40 to 194°F) | 4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
| z12-2 (TB5) - z12-12 (GB5) | P - P | Battery temperature sensor 5 | HV battery temperature: -40 to 90°C (-40 to 194°F) | 4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
| z12-3 (TB4) - z12-13 (GB4) | GR - GR | Battery temperature sensor 4 | HV battery temperature: -40 to 90°C (-40 to 194°F) | 4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
| z12-4 (TB3) - z12-14 (GB3) | SB - SB | Battery temperature sensor 3 | HV battery temperature: -40 to 90°C (-40 to 194°F) | 4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
| z12-5 (TB2) - z12-15 (GB2) | L - L | Battery temperature sensor 2 | HV battery temperature: -40 to 90°C (-40 to 194°F) | 4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
| z12-6 (TB1) - z12-16 (GB1) | W - W | Battery temperature sensor 1 | HV battery temperature: -40 to 90°C (-40 to 194°F) | 4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
| z12-7 (TB0) - z12-17 (GB0) | R - R | Battery temperature sensor 0 | HV battery temperature: -40 to 90°C (-40 to 194°F) | 4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
| z12-9 (IB) - z12-20 (GIB) | Y - B | Current sensor | Power switch on (READY) | 0.5 to 4.5 V |
| z12-10 (VIB) - z12-20 (GIB) | BR - B | Power source for battery current sensor | Power switch on (IG) | 4.5 to 5.5 V |
| y2-1 (IGCT) - y2-5 (GND) | L - W-B | Control signal | Power switch on (READY) | 11 to 14 V |
| y2-2 (BTH+) - y2-5 (GND) | R - W-B | Serial communication | Power switch on (IG) | Pulse generation (waveform 1) |
| y2-3 (BTH-) - y2-5 (GND) | G - W-B | Serial communication | Power switch on (IG) | Pulse generation (waveform 2) |
| y2-8 (FP0) - y2-5 (GND) | LG - W-B | Battery cooling blower No. 1 monitor signal | Cooling blower stopped | 0 Hz |
| Cooling blower activated | Pulse generation | |||
| y2-7 (FP1) - y2-5 (GND) | BR - W-B | Battery cooling blower No. 2 monitor signal | Cooling blower stopped | 0 Hz |
| Cooling blower activated | Pulse generation | |||
| y2-5 (GND) - Body ground | W-B | Ground | Always (continuity check) | Below 1 Ω |
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Oscilloscope waveforms
Tech Tips
Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.
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Waveform 1
Item Content Terminal y2-2 (BTH+) - y2-5 (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).
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Waveform 2
Item Content Terminal y2-3 (BTH-) - y2-5 (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).
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