TERMINALS OF ECU
System information
| Symbols (Terminal No.) |
Wiring Color |
Terminal Description |
Condition |
Standard (V) |
| IGCT (B26-1) - GND (B26-8) |
R - W-B |
Control signal |
READY-on state |
9 to 14 |
| VM0 (B26-3) - GND (B26-8) |
L - W-B |
Cooling fan No.0 monitor signal |
Cooling fan No.0 activation |
0 to 10 |
| VM1 (B26-4) - GND (B26-8) |
P - W-B |
Cooling fan No.1 monitor signal |
Cooling fan No.1 activation |
0 to 10 |
| VM2 (B26-5) - GND (B26-8) |
O - W-B |
Cooling fan No.2 monitor signal |
Cooling fan No.2 activation |
0 to 10 |
| BTH+ (B26-7) - GND (B26-8) |
Y - W-B |
Serial communication |
Ignition switch ON |
Pulse generation (waveform 1) |
| BTH- (B26-14) - GND (B26-8) |
BR - W-B |
↑ |
Ignition switch ON |
Pulse generation (waveform 2) |
| TB0 (B28-1) - GB0 (B28-6) |
W - W |
HV battery temperature sensor 0 |
HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 to 1.0 |
| TB1 (B28-2) - GB1 (B28-7) |
L - L |
HV battery temperature sensor 1 |
HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 to 1.0 |
| TB2 (B27-1) - GB2 (B27-4) |
R - R |
HV battery temperature sensor 2 |
HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 to 1.0 |
| TB3 (B27-2) - GB3 (B27-5) |
W - W |
HV battery temperature sensor 3 |
HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 to 1.0 |
| TB4 (B27-3) - GB4 (B27-6) |
G - G |
HV battery temperature sensor 4 |
HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 to 1.0 |
| TB5 (B28-3) - GB5 (B28-8) |
R - R |
HV battery temperature sensor 5 |
HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 to 1.0 |
| TB6 (B28-4) - GB6 (B28-9) |
O - O |
HV battery temperature sensor 6 |
HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 to 1.0 |
| TB7 (B28-5) - GB7 (B28-10) |
G - G |
HV battery temperature sensor 7 |
HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 to 1.0 |
| VIB (B26-10) - GIB (B26-12) |
Y-B - V |
Power source for battery current sensor |
Ignition switch ON |
4.5 to 5.5 |
| IB( B26-11) - GIB (B26-12) |
BR-B - V |
Battery current sensor |
READY-on state |
0.5 to 4.5 |
| GND (B26-8) - Body ground |
W-B - body ground |
Ground |
Always (continuity check) |
Continuity. (Below 6 Ω) |
| Oscilloscope waveform |
- HINT:
- Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.
Waveform 1
Item
Contents
Terminal
BTH+ (B26-7) - GND (B26-8)
Equipment Setting
2V/DIV, 500μs/DIV
Condition
Ignition switch ON
- HINT:
- The waveform shown in the illustration varies depending on the contents of the communication.
Waveform 2
Item
Contents
Terminal
BTH- (B26-14) - GND (B26-8)
Equipment Setting
2V/DIV, 500μs/DIV
Condition
Ignition switch ON
- HINT:
- The waveform shown in the illustration varies depending on the contents of the communication.