Active Torque Control 4Wd System Terminals Of Ecu
Drive Line. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
CHECK 4WD CONTROL ECU
Active Torque Control 4Wd System -- Terminals Of Ecu |
Measure the voltage and resistance of the connector.
Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
CANH (E67-14) - CANL (E67-16)
| P - W
| CAN communication
| Ignition switch off
| 54 to 69 Ω
|
GND (E67-23) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
4WDL (E67-7) - Body ground
| R - Body ground
| Ground
| Press continuously 4WD lock mode switch
| Below 1 Ω
|
IG1 (E67-11) - GND (E67-23)
| L - W-B
| Power source voltage
| Ignition switch on (IG)
| 10 to 14 V
|
SLC+ (E67-13) - SLC- (E67-32)
| W - B
| 4WD linear solenoid signal
| Ignition switch on (IG)
| Pulse generation (See waveform 1)
|
BSLC (E67-9) - GND (E67-23)
| R - W-B
| Power source voltage
| Ignition switch on (IG)
| 10 to 14 V
|
If the result is not as specified, the 4WD control ECU may have a malfunction.
Using an oscilloscope, check the waveform 1.
Waveform 1 (Reference) Symbols (Terminal No.)
| Content
|
Tool setting
| 5 V/DIV., 2 msec. / DIV.
|
Vehicle condition
| Engine stop, ignition switch on (IG)
|
