HYBRID BATTERY SYSTEM TERMINALS OF ECU
| *1 | Battery Smart Unit | - | - |
| 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 |
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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 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).
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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).
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