Terminals Of Ecu
HINT:
Inspect the connector from the back side while connector is connected.
- 4WD CONTROL ECU:
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4WD CONTROL ECU CONNECTOR TERMINALS REFERENCESymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition CANH (A48-1) - CANL (A48-14) B-W CAN communication line Engine switch off 54 to 67 Ω RRO (A48-2) - GND (A48-30) P - W-B Rear right wheel speed sensor signal Engine switch on (IG), driving at approximately 18 mph (30 km/h) Pulse generation (see waveform 1) FRO (A48-3) - GND (A48-30) 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 waveform 1) IG1 (A48-9) - GND (A48-30) B - W-B Power source voltage Engine switch on (IG) 10 to 14 V SLC+ (A48-13) - SLC- (A48-32) P-L - G-R Transfer control solenoid signal Engine switch on (IG) Pulse generation (see waveform 2) RLO (A48-15) - GND (A48-30) L - W-B Rear left wheel speed sensor signal Engine switch on (IG), driving at approximately 18 mph (30 km/h) Pulse generation (see waveform 1) FLO (A48-16) - GND (A48-30) 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 waveform 1) FREE (A48-23) - GND (A48-30) GR - 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 (A48-30) - Body ground W-B - Body ground Ground Always Below 1 Ω - 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)
- Waveform 1 (Reference):