TERMINALS OF ECU
1. NAVIGATION RECEIVER ASSEMBLY
Terminal No. (Symbols) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
N19-3 (ACC2) - N24-7 (GND1)*3 |
Y - W-B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
N19-4 (+B2) - N24-7 (GND1)*3 |
R - W-B |
Power source (+B) |
Always |
11 to 14 V |
N19-8 (GND2) - Body ground*3 |
B - Body ground |
Ground |
Always |
Below 1 V |
N22-1 (UPO) |
- |
Power source |
- |
- |
N22-2 (UDO-) |
- |
Data signal |
- |
- |
N22-3 (UDO+) |
- |
Data signal |
- |
- |
N22-4 (UESG) |
- |
Ground |
- |
- |
N23-1 (RR+) - N24-7 (GND1)*5 |
L - W-B |
Sound signal (Rear) |
Audio system playing |
A waveform synchronized with sounds is output |
N23-2 (RL+) - N24-7 (GND1)*5 |
W - W-B |
Sound signal (Rear) |
Audio system playing |
A waveform synchronized with sounds is output |
N23-3 (RR-) - N24-7 (GND1)*5 |
LG - W-B |
Sound signal (Rear) |
Audio system playing |
A waveform synchronized with sounds is output |
N23-4 (SLD2) - N24-7 (GND1)*1 |
Shielded - W-B |
Shield ground |
Always |
Below 1 V |
N23-5 (ILL-) - N24-7 (GND1) |
BE - W-B |
Illumination signal |
Light control switch off |
Below 1 V |
Light control switch in tail or head position |
Pulse generation |
|||
N23-6 (RL-) - N24-7 (GND1)*5 |
B - W-B |
Sound signal (Rear) |
Audio system playing |
A waveform synchronized with sounds is output |
N24-1 (FR+) - N24-7 (GND1) |
R - W-B*1 LA-R - W-B*2 |
Sound signal (Right) |
Audio system playing |
A waveform synchronized with sounds is output |
N24-2 (FL+) - N24-7 (GND1) |
B - W-B*1 LA-B - W-B*2 |
Sound signal (Left) |
Audio system playing |
A waveform synchronized with sounds is output |
N24-3 (ACC1) - N24-7 (GND1) |
GR - W-B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
N24-4 (+B1) - N24-7 (GND1) |
W - W-B |
Power source (+B) |
Always |
11 to 14 V |
N24-5 (FR-) - N24-7 (GND1) |
G - W-B*1 LA-G - W-B*2 |
Sound signal (Right) |
Audio system playing |
A waveform synchronized with sounds is output |
N24-6 (FL-) - N24-7 (GND1) |
W - W-B*1 LA-W - W-B*2 |
Sound signal (Left) |
Audio system playing |
A waveform synchronized with sounds is output |
N24-7 (GND1) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 V |
N24-10 (ILL+) - N24-7 (GND1) |
G - W-B |
Illumination signal |
Light control switch off |
Below 1 V |
Light control switch in tail or head position |
11 to 14 V |
|||
N25-1 (IG) - N24-7 (GND1) |
LG - W-B |
Power source (IG) |
Ignition switch off |
Below 1 V |
Ignition switch ON |
11 to 14 V |
|||
N25-2 (REV) - N24-7 (GND1) |
GR - W-B |
Reverse signal |
See "Vehicle Signal Check Mode" in Operation Check (See page
|
- |
N25-4 (MACC) - N24-7 (GND1) |
R - W-B |
Microphone power supply |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
4 to 6 V |
|||
N25-5 (MIN+) - N24-7 (GND1) |
G - W-B |
Microphone voice signal |
See "Microphone Level Test" in Operation Check (See page
|
- |
N25-6 (SNS2) - N24-7 (GND1) |
W - W-B |
Microphone connection detection signal |
Always |
Below 1 V |
N25-7 (TX1+)*1 |
BE |
AVC-LAN communication signal |
- |
- |
N25-8 (TX1-)*1 |
P |
AVC-LAN communication signal |
- |
- |
N25-11 (AGND) - N24-7 (GND1) |
Shielded - W-B |
Shield ground |
Always |
Below 1 V |
N25-15 (PKB) - N24-7 (GND1) |
Y - W-B |
Parking brake signal |
See "Vehicle Signal Check Mode" in Operation Check (See page
|
- |
N25-16 (MUT1) - N24-7 (GND1)*1 |
SB - W-B |
Mute signal |
Audio system playing |
Above 3.5 V |
Audio system changing modes |
Below 1 V |
|||
N25-17 (SPD) - N24-7 (GND1) |
V - W-B |
Vehicle speed signal |
See "Vehicle Signal Check Mode" in Operation Check (See page
|
- |
N25-18 (SGND) - N24-7 (GND1) |
Shielded - W-B |
Shield ground |
Always |
Below 1 V |
N25-19 (MIN-) - N24-7 (GND1) |
B - W-B |
Microphone voice signal |
See "Microphone Level Test" in Operation Check (See page
|
- |
N25-21 (SW1) - N25-23 (SWG) |
V - SB |
Steering pad switch signal |
No switch pushed |
2.97 to 3.56 V |
Up switch pushed |
0.27 to 0.35 V |
|||
Down switch pushed |
0.86 to 1.03 V |
|||
Volume+ switch pushed |
1.51 to 1.79 V |
|||
Volume- switch pushed |
2.22 to 2.66 V |
|||
N25-22 (SW2) - N25-23 (SWG) |
Y - SB |
Steering pad switch signal |
No switch pushed |
2.97 to 3.56 V |
MODE/HOLD switch pushed |
0.27 to 0.35 V |
|||
On hook switch pushed |
0.86 to 1.03 V |
|||
Off hook switch pushed |
1.51 to 1.79 V |
|||
Voice switch pushed |
2.22 to 2.66 V |
|||
N25-23 (SWG) - N24-7 (GND1) |
SB - W-B |
Steering pad switch ground |
Always |
Below 1 V |
N25-25 (ADPG) - N24-7 (GND1) |
W-B - W-B |
External device connection detection signal |
External device connected |
Below 1 V |
N25-26 (VAR+) - N24-7 (GND1) |
W - W-B |
Sound signal (Right) |
External device playing (When stereo jack used) |
A waveform synchronized with sounds is output |
N25-27 (VA-) - N24-7 (GND1) |
R - W-B |
Ground |
Always |
Below 1 V |
N25-28 (VAL+) - N24-7 (GND1) |
B - W-B |
Sound signal (Left) |
External device playing (When stereo jack used) |
A waveform synchronized with sounds is output |
N26-3 (CNH1) |
B |
Local bus communication signal |
- |
- |
N26-4 (CNL1) |
W |
Local bus communication signal |
- |
- |
N26-11 (CA+) - N24-7 (GND1)*4 |
B - W-B |
Power source |
Ignition switch ACC |
5.5 to 7.05 V |
N26-12 (V+) - N26-24 (V-)*4 |
R - W |
Display signal |
Ignition switch ON, shift lever in R |
Pulse generation (See waveform 1) |
Ignition switch ON, shift lever in R, screen blacked out by covering camera lens |
Pulse generation (See waveform 2) |
|||
N26-23 (CGND) - N24-7 (GND1)*4 |
Shielded - W-B |
Shield ground |
Always |
Below 1 V |
N27-1 (USV4)*3 |
- |
Power source |
- |
- |
N27-2 (US4-)*3 |
- |
Data signal |
- |
- |
N27-3 (US4+)*3 |
- |
Data signal |
- |
- |
N27-4 (UGO4)*3 |
- |
Ground |
- |
- |
N27-5 (USG4)*3 |
- |
Shield ground |
- |
- |
N28-1 (LVDS) - N24-7 (GND1)*3 |
B - W-B |
LVDS communication signal |
- |
- |
RA-5 (ANT+) - N24-7 (GND1) |
- - W-B |
Power source of antenna |
Ignition switch ACC Radio switch on and FM or AM selected |
11 to 14 V |
(a) Using an oscilloscope, check the waveform.
(1) Waveform 1
Measurement Condition
Item |
Content |
---|---|
Terminal No. (Symbol) |
N26-12 (V+) - N26-24 (V-) |
Tool Setting |
0.2 V/DIV., 50 μs./DIV. |
Condition |
Ignition switch ON, shift lever in R |
HINT:
The video waveform changes according to the image sent by the television camera assembly.
(2) Waveform 2
Measurement Condition
Item |
Content |
---|---|
Terminal No. (Symbol) |
N26-12 (V+) - N26-24 (V-) |
Tool Setting |
0.2 V/DIV., 50 μs./DIV. |
Condition |
Ignition switch ON, shift lever in R, screen blacked out by covering camera lens |
HINT:
The video waveform changes according to the image sent by the television camera assembly.
Text in Illustration
*a |
Waveform 1 |
*b |
Waveform 2 |
*c |
Synchronized Signal |
*d |
Video Waveform |
2. STEREO COMPONENT TUNER ASSEMBLY (w/ SDARS System)
Terminal No. (Symbols) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
S52-3 (ACC2) - S52-8 (GND2) |
Y - B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
S52-4 (+B2) - S52-8 (GND2) |
R - B |
Power source (+B) |
Always |
11 to 14 V |
S52-8 (GND2) - Body ground |
B - Body ground |
Ground |
Always |
Below 1 V |
S53-1 (USV4) |
- |
Power source |
- |
- |
S53-2 (US4-) |
- |
Data signal |
- |
- |
S53-3 (US4+) |
- |
Data signal |
- |
- |
S53-4 (UGO4) |
- |
Ground |
- |
- |
S53-5 (USG4) |
Shielded |
Shield ground |
- |
- |
S54-1 (LVDS) |
B |
LVDS communication signal |
- |
- |
3. STEREO COMPONENT AMPLIFIER ASSEMBLY (w/ Stereo Component Amplifier)
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
S23-1 (MUTE) - S24-6 (GND) |
SB - W-B |
Mute signal |
Audio system is playing |
Above 3.5 V |
Audio system is changing mode |
Below 1 V |
|||
S23-2 (L-) - S24-6 (GND) |
W - W-B |
Sound signal (Left) |
Audio system is playing |
A waveform synchronized with sounds is output |
S23-3 (L+) - S24-6 (GND) |
B - W-B |
Sound signal (Left) |
Audio system is playing |
A waveform synchronized with sounds is output |
S23-4 (R-) - S24-6 (GND) |
G - W-B |
Sound signal (Right) |
Audio system is playing |
A waveform synchronized with sounds is output |
S23-5 (R+) - S24-6 (GND) |
R - W-B |
Sound signal (Right) |
Audio system is playing |
A waveform synchronized with sounds is output |
S23-6 (SGND) - Body ground |
Shielded - Body ground |
Shield ground |
Always |
Below 1 V |
S23-7 (TX-) |
P |
AVC-LAN communication signal |
- |
- |
S23-8 (TX+) |
BE |
AVC-LAN communication signal |
- |
- |
S23-11 (SPD) - S24-6 (GND) |
V - W-B |
Vehicle speed signal |
Ignition switch ON, drive wheels turned slowly |
Pulse generation |
S23-12 (ACC) - S24-6 (GND) |
GR - W-B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
S23-22 (INT-) - S24-6 (GND) |
B - W-B |
Voice signal |
Voice guidance sounding |
A waveform synchronized with sounds is output |
S23-23 (INT+) - S24-6 (GND) |
W - W-B |
Voice signal |
Voice guidance sounding |
A waveform synchronized with sounds is output |
S24-1 (FL-) - S24-6 (GND) |
LG - W-B |
Sound signal (Front Left) |
Audio system is playing |
A waveform synchronized with sounds is output |
S24-2 (FL+) - S24-6 (GND) |
G - W-B |
Sound signal (Front Left) |
Audio system is playing |
A waveform synchronized with sounds is output |
S24-3 (FR-) - S24-6 (GND) |
L - W-B |
Sound signal (Front Right) |
Audio system is playing |
A waveform synchronized with sounds is output |
S24-4 (WFR+) - S24-6 (GND) |
LA-B - W-B |
Sound signal (Woofer) |
Audio system is playing |
A waveform synchronized with sounds is output |
S24-5 (WFL+) - S24-6 (GND) |
LA-G - W-B |
Sound signal (Woofer) |
Audio system is playing |
A waveform synchronized with sounds is output |
S24-6 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 V |
S24-7 (E) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 V |
S24-9 (FR+) - S24-6 (GND) |
GR - W-B |
Sound signal (Front Right) |
Audio system is playing |
A waveform synchronized with sounds is output |
S24-10 (WFR-) - S24-6 (GND) |
LA-R - W-B |
Sound signal (Woofer) |
Audio system is playing |
A waveform synchronized with sounds is output |
S24-12 (WFL-) - S24-6 (GND) |
LA-Y - W-B |
Sound signal (Woofer) |
Audio system is playing |
A waveform synchronized with sounds is output |
S31-1 (+B) - S24-6 (GND) |
W - W-B |
Power source (+B) |
Always |
11 to 14 V |
S31-2 (TWR+) - S24-6 (GND) |
P - W-B |
Sound signal (Front Right) |
Audio system is playing |
A waveform synchronized with sounds is output |
S31-3 (RL+) - S24-6 (GND) |
W - W-B |
Sound signal (Rear Left) |
Audio system is playing |
A waveform synchronized with sounds is output |
S31-4 (RR-) - S24-6 (GND) |
LA-LG - W-B |
Sound signal (Rear Right) |
Audio system is playing |
A waveform synchronized with sounds is output |
S31-5 (+B2) - S24-6 (GND) |
SB - W-B |
Power source (+B) |
Always |
11 to 14 V |
S31-6 (TWR-) - S24-6 (GND) |
V - W-B |
Sound signal (Front Right) |
Audio system is playing |
A waveform synchronized with sounds is output |
S31-7 (TWL-) - S24-6 (GND) |
R - W-B |
Sound signal (Front Left) |
Audio system is playing |
A waveform synchronized with sounds is output |
S31-8 (TWL+) - S24-6 (GND) |
Y - W-B |
Sound signal (Front Left) |
Audio system is playing |
A waveform synchronized with sounds is output |
S31-9 (RL-) - S24-6 (GND) |
B - W-B |
Sound signal (Rear Left) |
Audio system is playing |
A waveform synchronized with sounds is output |
S31-10 (RR+) - S24-6 (GND) |
LA-L - W-B |
Sound signal (Rear Right) |
Audio system is playing |
A waveform synchronized with sounds is output |
Automatic Light Control Sensor
Components
COMPONENTS
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL AUTOMATIC LIGHT CONTROL SENSOR
(a) Engage the 2 claws to install the automatic light control sensor.
2. INSTALL NO. 2 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY
(See page )
On-vehicle Inspection
ON ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
Customize Parameters
CUSTOMIZE PARAMETERS
1. CUSTOMIZE FUNCTION WITH TECHSTREAM
NOTICE:
Be sure to record the current settings before customizing.
These buzzers should be ON for safe driving. Perform these procedure
only if it is necessary to turn the buzzer OFF (disabled).
HINT:
The following ...