TERMINALS OF ECU
1. CHECK 4 WHEEL DRIVE CONTROL ECU
*a |
Component with harness connected (4 Wheel Drive Control ECU) |
- |
- |
(a) Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F13-12 (SLS) - F12-10 (GND) |
L - W-B |
Differential lock indicator switch |
Ignition switch ON Rear differential FREE |
10 to 14 V |
Ignition switch ON Rear differential LOCK |
Below 1.5 V |
|||
F13-15 (R) - F12-10 (GND) |
R - W-B |
Differential lock switch input |
Ignition switch ON Differential lock switch not pressed |
11 to 14 V |
Ignition switch ON Differential lock switch pressed and held |
Below 1.5 V |
|||
F13-20 (CANH) - F13-40 (CANL) |
BE - W |
HIGH-level CAN bus wire - LOW-level CAN bus wire |
Ignition switch off Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
F13-21 (+B) - F12-10 (GND) |
W - W-B |
ECU power supply |
Always |
10 to 14 V |
F12-1 (SL+) - F12-10 (GND) |
B - W-B |
Differential lock coil drive output (continuity with IG when operating) |
Ignition switch ON Rear differential free |
Below 1.5 V |
Ignition switch ON Switching between free and locked (Condition: A or C) |
Pulse generation (See waveform 1) |
|||
Ignition switch ON Rear differential locked (Condition B) |
Pulse generation (See waveform 1) |
|||
F12-4 (IG) - F12-10 (GND) |
Y - W-B |
ECU and actuator power supply |
Ignition switch ON |
11 to 14 V |
F12-5 (SL-) - F12-10 (GND) |
W - W-B |
Differential lock coil drive output (continuity with GND when operating) |
Ignition switch ON Rear differential free |
Below 1.5 V |
Ignition switch ON Rear differential switching between free and locked (Condition: A or C) |
Pulse generation (See waveform 2) |
|||
Ignition switch ON Rear differential locked (Condition B) |
Pulse generation (See waveform 2) |
|||
F12-10 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
(b) Waveform 1
(1) Rear differential in locked condition
Item |
Content |
---|---|
Tester Connection |
F12-1 (SL+) - F12-10 (GND) |
Tool Setting |
5 V/DIV., 500 ms./DIV. |
Condition: A |
Ignition switch ON Switching between free and locked |
Condition: B |
Ignition switch ON Rear differential locked |
*a |
Condition: A |
*b |
Condition: B |
(2) Rear differential not in locked condition (switching between free and locked)
Item |
Content |
---|---|
Tester Connection |
F12-1 (SL+) - F12-10 (GND) |
Tool Setting |
.5 V/DIV., 500 ms./DIV. |
Condition: C |
Ignition switch ON Switching between free and locked |
(c) Waveform 2
(1) Rear differential in locked condition
Item |
Content |
---|---|
Tester Connection |
F12-5 (SL-) - F12-10 (GND) |
Tool Setting |
5 V/DIV., 500 ms./DIV. |
Condition: A |
Ignition switch ON Switching between free and locked |
Condition: B |
Ignition switch ON Rear differential locked |
*a |
Condition: A |
*b |
Condition: B |
(2) Rear differential not in locked condition (switching between free and locked)
Item |
Content |
---|---|
Tester Connection |
F12-5 (SL-) - F12-10 (GND) |
Tool Setting |
5 V/DIV., 500 ms./DIV. |
Condition: C |
Ignition switch ON Switching between free and locked |
Parking Brake Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT PARKING BRAKE SWITCH ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Text in Illustration
On
Off
...
Skid Control Buzzer Circuit (C1A4A)
DESCRIPTION
Based on dynamic radar cruise control system operation, the forward recognition
camera provides warnings to the driver by sounding the skid control buzzer.
DTC C1A4A is stored when a malfunction is detected in the skid control buzzer
circuit.
DTC No.
Detectio ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Use the same procedures for both the LH and RH sides.
The procedure described below is for the LH side.
PROCEDURE
1. INSTALL OUTER REAR VIEW MIRROR ASSEMBLY
(a) Engage the claw to install the outer rear view mirror assembly.
(b) Ins ...