ENGINE STOP AND START ECU
Disconnect the A65, A66 and G87 engine stop and start ECU connectors.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A65-5 (+B) - Body ground | B - Body ground | Power source of engine stop and start ECU | Ignition switch ON | 9.5 to 14 V |
| A65-7 (BIN) - Body ground | L - Body ground | Battery | Always | 9.5 to 14 V |
| A65-8 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| A66-10 (NE) - Body ground | P - Body ground | Engine speed signal from ECM | Always | 10 kΩ or higher |
| A66-17 (VB-) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| G87-15 (CANH) - Body ground | LG - Body ground | CAN communication | Always | 200 Ω or higher |
| G87-16 (CANL) - Body ground | W - Body ground | CAN communication | Always | 200 Ω or higher |
| G87-17 (IG1) - Body ground | L - Body ground | Ignition or starter switch assembly*1 or push start switch assembly*2 signal | Ignition switch ON | 9.5 to 14 V |
| G87-19 (ACC) - Body ground | W - Body ground | Ignition or starter switch assembly*1 or push start switch assembly*2 signal | Ignition switch ACC | 9.5 to 14 V |
| G87-20 (IG2) - Body ground | V - Body ground | Ignition or starter switch assembly*1 or push start switch assembly*2 signal | Ignition switch ON | 9.5 to 14 V |
*1: w/o Entry and Start System
*2: w/ Entry and Start System
Reconnect the A65, A66 and G87 engine stop and start ECU connectors.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A65-6 (OPO) - A65-8 (GND) | G - W-B | Oil pump assembly with motor (continuously variable transaxle assembly) drive power source signal | Either of the following conditions is met:
|
10.5 to 16 V |
| A66-3 (BRE2) - Body ground | G - Body ground | Ground (vacuum sensor assembly (brake booster pressure sensor)) | Always | Below 1 Ω |
| A66-7 (BNT1) - A65-8 (GND) | R - W-B | Engine hood courtesy switch (Hood lock assembly) signal |
|
0 to 1.5 V |
|
8 to 14 V | |||
| A66-9 (OPM1) - A65-8 (GND) | LG - W-B | Oil pump assembly with motor (continuously variable transaxle assembly) directions signal | Either of the following conditions is met:
|
Pulse generation (see waveform 1) |
| A66-10 (NE) - A65-8 (GND) | P - W-B | Engine speed signal from ECM | Idling after engine warmed up | Pulse generation (see waveform 2) |
| A66-13 (PB) - A66-3 (BRE2) | B - G | Vacuum sensor assembly (Brake booster pressure sensor) signal |
|
1.6 to 2.0 V |
|
2.2 to 2.6 V | |||
|
3.4 to 3.8 V | |||
| A66-14 (BRVC) - A65-8 (GND) | P - W-B | Vacuum sensor assembly (Brake booster pressure sensor) power supply |
|
4.5 to 5.5 V |
| A66-21 (STA) - A65-8 (GND) | LG - W-B | Starter pinion operation signal | Cranking | 6.0 V or more |
| A66-23 (STA2) - A65-8 (GND) | V - W-B | Starter motor operation signal | Cranking | 6.0 V or more |
| A66-27 (NOPM) - A65-8 (GND) | W - W-B | Oil pump assembly with motor (continuously variable transaxle assembly) speed signal | Either of the following conditions is met:
|
Pulse generation (see waveform 3) |
| A66-28 (CLL) - A65-8 (GND) | W - W-B | Park/neutral position switch assembly signal |
|
8 to 14 V |
|
Below 3.0 V | |||
| G87-2 (BO1) - A65-8 (GND) | SB - W-B | Backup boost converter signal | Always | 10.5 to 16 V |
| G87-3 (ACO) - A65-8 (GND) | GR - W-B | Backup boost converter signal | Ignition switch ACC | 10.5 to 16 V |
| G87-11 (IGO2) - A65-8 (GND) | P - W-B | Backup boost converter signal | Ignition switch ON | 10.5 to 16 V |
| G87-12 (IGO1) - A65-8 (GND) | L - W-B | Backup boost converter signal | Ignition switch ON | 10.5 to 16 V |
| G87-17 (IG1) - A65-8 (GND) | L - W-B | Ignition or starter switch assembly*1 or push start switch assembly*2 signal | Ignition switch ACC | Below 1 V |
| Ignition switch ON | 9.5 to 14 V | |||
| G87-19 (ACC) - A65-8 (GND) | W - W-B | Ignition or starter switch assembly*1 or push start switch assembly*2 signal | Ignition switch off | Below 1 V |
| Ignition switch ACC | 9.5 to 14 V | |||
| G87-20 (IG2) - A65-8 (GND) | V - W-B | Ignition switch signal Ignition or starter switch assembly*1 or push start switch assembly*2 signal |
Ignition switch ACC | Below 1 V |
| Ignition switch ON | 9.5 to 14 V | |||
| G87-23 (ECAN) - A65-8 (GND) | V - W-B | Stop and start system cancel switch (Ecorun cancel switch assembly) signal |
|
0 to 1.5 V |
|
8 to 14 V |
*1: w/o Entry and Start System
*2: w/ Entry and Start System
| *a | 5 V/DIV. |
| *b | 5 ms./DIV. |
Waveform 1
| Item | Content |
|---|---|
| Tester Connection | A66-9 (OPM1) - A65-8 (GND) |
| Tool Setting | 5 V/DIV.,5 ms./DIV. |
| Condition | Either of the following conditions is met:
|
| *a | 5 V/DIV. |
| *b | 2 ms./DIV. |
Waveform 2
| Item | Content |
|---|---|
| Tester Connection | A66-10 (NE) - A65-8 (GND) |
| Tool Setting | 5 V/DIV., 2 ms./DIV. |
| Condition | Idling after engine warmed up |
| *a | 5 V/DIV. |
| *b | 5 ms./DIV. |
Waveform 3
| Item | Content |
|---|---|
| Tester Connection | A66-27 (NOPM) - A65-8 (GND) |
| Tool Setting | 5 V/DIV.,5 ms./DIV. |
| Condition | Either of the following conditions is met:
|