TERMINALS OF ECU
1. CHECK TIRE PRESSURE WARNING ECU
HINT:
Inspect the connectors from the back side while the connectors are connected.
(a) Disconnect the L14 tire pressure warning antenna and receiver connector.
(b) Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D31-12 (RDA) - D31-9 (GND) |
Y - W-B |
Tire pressure warning antenna and receiver signal |
Ignition switch ON |
11 to 14 V |
(c) Connect the L14 tire pressure warning antenna and receiver connector.
(d) Measure the voltage and resistance according to the value(s) in the table below. If the result is not as specified, the ECU may have a malfunction.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D31-2 (SPD) - D31-9 (GND) |
P - W-B |
Vehicle speed signal |
Vehicle driving |
Pulse generation (see waveform 1) |
D31-3 (TC) - D31-9 (GND) |
BR - W-B |
TC terminal |
Terminal TC not connected |
11 to 14 V |
D31-4 (TACH) - D31-9 (GND) |
V - W-B |
Engine speed signal |
Engine running |
Pulse generation (see waveform 2) |
D31-5 (IND) - D31-9 (GND) |
LG - W-B |
Tire pressure warning light output signal |
|
Below 0.5 V |
After ignition switch is turned to ON, tire pressure warning light illuminates for 3 seconds. |
0.9 to 3.2 V |
|||
D31-6 (RF5V) - D31-9 (GND) |
R - W-B |
Tire pressure warning antenna and receiver power source |
Ignition switch ON |
11 to 14 V |
D31-7 (IG) - D31-9 (GND) |
GR - W-B |
IG power source |
Ignition switch ON |
11 to 14 V |
D31-9 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
D31-10 (SIL) - D31-9 (GND) |
P - W-B |
Diagnostic communication |
Ignition switch ON |
8 to 14 V |
D31-11 (GND2) - D31-9 (GND) |
W - W-B |
Tire pressure warning antenna and receiver ground |
Always |
Below 1 Ω |
D31-12 (RDA) - D31-9 (GND) |
Y - W-B |
Tire pressure warning antenna and receiver signal |
Ignition switch ON |
11 to 14 V |
(e) Using an oscilloscope, check waveform 1.
Item |
Content |
---|---|
Terminal |
D31-2 (SPD) - D31-9 (GND) |
Tool setting |
5 V/DIV, 20 ms./DIV. |
Vehicle condition |
Driving at approximately 20 km/h (12 mph) |
HINT:
The wavelength becomes shorter as the vehicle speed increases.
(f) Using an oscilloscope, check waveform 2.
Item |
Content |
---|---|
Terminal |
D31-4 (TACH) - D31-9 (GND) |
Tool setting |
5 V/DIV., 10 ms./DIV. |
Vehicle condition |
Idling |
HINT:
The wavelength becomes shorter as the engine speed increases.
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure listed to troubleshoot the Active Torque
Control 4WD system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
...
Power Back Door Touch Sensor
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE UPPER BACK WINDOW PANEL TRIM
2. REMOVE BACK DOOR PANEL TRIM ASSEMBLY
3. DISCONNECT POWER BACK DOOR ROD (for LH Side)
4. REMOVE BACK DOOR TRIM COVER
5. REMOVE POW ...
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT DOOR SCUFF PLATE LH
2. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH
3. REMOVE LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL
4. REMOVE LOWER STEERING COLUMN COVER
(a) Turn the steering wheel assembly to the right ...