TERMINALS OF ECU
1. CHECK AWD CONTROL ECU
(a) Measure the voltage and resistance of the connector.
Terminal No. (Symbol) |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|
14 (CANH) - 16 (CANL) |
CAN communication |
Ignition switch off |
54 to 69 Ω |
23 (GND) - Body ground |
Ground |
Always |
Below 1 Ω |
11 (IG1) - 23 (GND) |
Power source voltage |
Ignition switch ON |
10 to 14 V |
13 (SLC+) - 32 (SLC-) |
Electromagnetic solenoid signal |
D position, Idling |
Pulse generation (See waveform 1) |
9 (BSLC) - 23 (GND) |
Power source voltage |
Always |
10 to 14 V |
If the result is not as specified, the AWD control ECU may have a malfunction.
(b) Using an oscilloscope, check the waveform 1.
Terminal Name |
Content |
---|---|
Tester Range |
2 V/DIV., 1 msec./DIV. |
Condition |
D position, Idling |
Selecting the units
Press the “US/M-M” button.
The unit changes each time the button is pressed.
- Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem to ...
Steering Angle Sensor Initialization Incomplete (C1439/31,C1445/31)
DESCRIPTION
The skid control ECU acquires the steering angle sensor zero point every time
the ignition switch is turned to ON and the vehicle is driven at 50 km/h (31 mph)
or more for approximately 30 seconds. The ECU also stores previous zero points.
Wa ...
System Diagram
SYSTEM DIAGRAM
Transmitting ECU
(Transmitter)
Receiving ECU
Signal
Communication Method
Center Airbag Sensor Assembly
ECM
Crash detection signal
CAN
...