Terminals Of Ecu
HINT:
Inspect the connector from the back side while the connector is connected.
- 4WD CONTROL ECU:
TERMINALS SPECIFIED CONDITIONS
| Symbols (Terminal No.) | Wiring Color | Terminal Description | Conditiona | Specified Condition |
|---|---|---|---|---|
| CANH (A32-1) - CANL (A32-14) | B - V | CAN communication line | Engine switch off | 54 to 67 ohms |
| RRO (A32-2) - GND (A32-30) | P - W-B | Rear right wheel speed sensor signal | Engine switch on (IG), driving at approximately 18 mph (30 km/h) | Pulse generation (see Fig 2 ) |
| FRO (A32-3) - GND (A32-30) | G-W - W-B | Front right wheel speed sensor signal | Engine switch on (IG), driving at approximately 18 mph (30 km/h) | Pulse generation (see Fig 2 ) |
| IG1 (A32-9) - GND (A32-30) | B-W - W-B | Power source voltage | Engine switch on (IG) | 10 to 14 V |
| SLC+ (A32-13) - SLC- (A32-32) | P-L - G-R | Transfer control solenoid signal | Engine switch on (IG) | Pulse generation (see Fig 3 ) |
| RLO (A32-15) - GND (A32-30) | L-R - W-B | Rear left wheel speed sensor signal | Engine switch on (IG), driving at approximately 18 mph (30 km/h) | Pulse generation (see Fig 2 ) |
| FLO (A32-16) - GND (A32-30) | R-L - W-B | Front left wheel speed sensor signal | Engine switch on (IG), driving at approximately 18 mph (30 km/h) | Pulse generation (see Fig 2 ) |
| FREE (A32-23) - GND (A32-30) | G - W-B | Sets the center differential free | Engine switch on (IG), open and short terminals OPA and CG of the DLC3. | 10 to 14 V --> 0 to 1.5 V |
| GND (A32-30) - Body ground | W-B - Body ground | Ground | Always | Below 1 ohms |
- Waveform 1 (Reference):WAVEFORM 1 (REFERENCE)
Item Contents Tool setting 2 V/DIV, 2 ms./DIV Vehicle condition Driving at approximately 18 mph (30 km/h) HINT:
As vehicle speed (wheel rotation speed) increases, the width of the waveform narrows.
- Waveform 2 (Reference):
WAVEFORM 2 (REFERENCE)
| Item | Contents |
|---|---|
| Tool setting | 5 V/DIV, 2 ms./DIV |
| Vehicle condition | Engine stop, Engine switch on (IG) |