TERMINALS OF ECU
HINT:
Check from the rear of the connector while it is connected to the components.
1. NAVIGATION RECEIVER ASSEMBLY
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
E38-1 (FR+) - E38-7 (GND1) |
LG - BR*1 R - BR*2 |
Sound signal (Front right)*1 Sound signal (Right)*2 |
Audio system playing |
A waveform synchronized with sound signals is output |
E38-2 (FL+) - E38-7 (GND1) |
P - BR*1 B - BR*2 |
Sound signal (Front left)*1 Sound signal (Left)*2 |
Audio system playing |
A waveform synchronized with sound signals is output |
E38-3 (ACC1) - E38-7 (GND1) |
GR - BR |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
E38-4 (+B1) - E38-7 (GND1) |
SB - BR |
Power source (+B) |
Always |
11 to 14 V |
E38-5 (FR-) - E38-7 (GND1) |
L - BR*1 G - BR*2 |
Sound signal (Front right)*1 Sound signal (Right)*2 |
Audio system playing |
A waveform synchronized with sound signals is output |
E38-6 (FL-) - E38-7 (GND1) |
V - BR*1 W - BR*2 |
Sound signal (Front left)*1 Sound signal (Left)*2 |
Audio system playing |
A waveform synchronized with sound signals is output |
E38-7 (GND1) - Body ground |
BR - Body ground |
Ground |
Always |
Below 1 V |
E38-10 (ILL+) - E38-7 (GND1) |
G - BR |
Illumination signal |
Light control switch off |
Below 1 V |
Light control switch in tail or head position |
11 to 14 V |
|||
E39-1 (RR+) - E38-7 (GND1)*1 |
R - BR |
Sound signal (Rear right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E39-2 (RL+) - E38-7 (GND1) |
B - BR*1 W - BR*2 |
Sound signal (Rear left)*1 Voice signal*2 |
Audio system playing*1 Voice guidance sounding*2 |
A waveform synchronized with sound signals is output*1 A waveform synchronized with voice signals is output*2 |
E39-3 (RR-) - E38-7 (GND1)*1 |
W - BR |
Sound signal (Rear right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E39-5 (ILL-) - E38-7 (GND1) |
W - BR |
Illumination signal |
Light control switch off |
Below 1 V |
Light control switch in tail or head position |
Pulse generation |
|||
E39-6 (RL-) - E38-7 (GND1) |
Y - BR*1 B - BR*2 |
Sound signal (Rear left)*1 Voice signal*2 |
Audio system playing*1 Voice guidance sounding*2 |
A waveform synchronized with sound signals is output*1 A waveform synchronized with voice signals is output*2 |
E51-11 (CA+) - E38-7 (GND1) |
B - BR |
Television camera power supply |
Ignition switch ACC |
5.8 to 6.5 V |
E51-12 (V+) - E38-7 (GND1) |
R - BR |
Video signal |
Ignition switch ON Shift lever in R Camera lens not covered, displaying an image |
Pulse generation (Refer to waveform 1) |
Ignition switch ON Shift lever in R Camera lens covered, blacking out screen |
Pulse generation (Refer to waveform 2) |
|||
E51-23 (CGND) - Body ground |
Shield - Body ground |
Shield ground |
Always |
Below 1 V |
E51-24 (V-) - E38-7 (GND1) |
W - BR |
Ground |
Always |
Below 1 V |
E40-1 (IG) - E38-7 (GND1) |
V - BR |
Power source (IG) |
Ignition switch off |
Below 1 V |
Ignition switch ON |
11 to 14 V |
|||
E40-4 (MACC) - E38-7 (GND1) |
R - BR |
Microphone power supply |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
4.75 to 5.25 V |
|||
E40-5 (MIN+) - E38-7 (GND1) |
B - BR |
Microphone voice signal |
See "Check Microphone" in Operation Check (See page
|
- |
E40-6 (SNS2) - E38-7 (GND1) |
Y - BR |
Microphone connection detection signal |
Always |
Below 1 V |
E40-7 (TX1+)*2 |
R |
AVC-LAN communication signal |
- |
- |
E40-8 (TX1-)*2 |
G |
AVC-LAN communication signal |
- |
- |
E40-9 (CANH) |
SB |
CAN communication signal |
- |
- |
E40-10 (CANL) |
W |
CAN communication signal |
- |
- |
E40-11 (AGND) - Body ground |
Shield - Body ground |
Shield ground |
Always |
Below 1 V |
E40-16 (MUT1) - E38-7 (GND1)*2 |
LG - BR |
Mute signal |
Ignition switch ACC Audio system playing |
2.0 V or higher |
Audio system changing modes |
Below 1 V |
|||
E40-17 (SPD) - E38-7 (GND1) |
BR - BR |
Vehicle speed signal |
See "Check Vehicle Signal" in Operation Check (See page
|
- |
E40-18 (SGND) - Body ground |
Shield - Body ground |
Shield ground |
Always |
Below 1 V |
E40-19 (MIN-) - E38-7 (GND1) |
W - BR |
Microphone voice signal |
See "Check Microphone" in Operation Check (See page
|
- |
E40-21 (SW1) - E40-23 (SWG) |
GR - R |
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 |
|||
E40-22 (SW2) - E40-23 (SWG) |
LG - R |
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 |
|||
E40-23 (SWG) - E38-7 (GND1) |
R - BR |
Steering pad switch ground |
Always |
Below 1 V |
E40-24 (SW3) - E40-23 (SWG) |
L - R |
Steering pad switch signal |
No switch pushed |
2.97 to 3.56 V |
Enter switch pushed |
0.27 to 0.35 V |
|||
Back switch pushed |
0.86 to 1.03 V |
|||
Right switch pushed |
1.51 to 1.79 V |
|||
Left switch pushed |
2.22 to 2.66 V |
|||
E40-25 (ADPG) - E38-7 (GND1) |
SB - BR |
External device connection detection signal |
External device connected |
Below 1 V |
External device not connected |
2.1 to 3 V |
|||
E40-26 (VAR+) - E40-27 (VA-) |
R - W |
Sound signal (Right) |
External device playing (When stereo jack used) |
A waveform synchronized with sound signals is output |
E40-27 (VA-) - E38-7 (GND1) |
W - BR |
Ground |
Always |
Below 1 V |
E40-28 (VAL+) - E40-27 (VA-) |
B - W |
Sound signal (Left) |
External device system playing (when stereo jack used) |
A waveform synchronized with sound signals is output |
V1-3 (ACC2) - E38-7 (GND1)*3 |
Y - BR |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
V1-4 (+B2) - E38-7 (GND1)*3 |
R - BR |
Power source (+B) |
Always |
11 to 14 V |
V1-8 (GND2) - Body ground*3 |
B - Body ground |
Ground |
Always |
Below 1 V |
E47-1 (USV1) |
- |
Power source |
- |
- |
E47-2 (US1-) |
- |
Data signal |
- |
- |
E47-3 (US1+) |
- |
Data signal |
- |
- |
E47-4 (UGD1) |
- |
Ground |
- |
- |
E47-5 (USG1) |
- |
Shield ground |
- |
- |
V5-1 (USV4)*3 |
- |
Power source |
- |
- |
V5-2 (US4-)*3 |
- |
Data signal |
- |
- |
V5-3 (US4+)*3 |
- |
Data signal |
- |
- |
V5-4 (UGD4)*3 |
- |
Ground |
- |
- |
V5-5 (USG4)*3 |
- |
Shield ground |
- |
- |
V3-1 (LV1)*3 |
B |
LVDS communication signal |
- |
- |
RA-5 (ANT+) - E38-7 (GND1) |
- - BR |
Power source of antenna |
Ignition switch ACC Radio switch on and FM or AM selected |
8.0 V or higher |
(a) Reference (Oscilloscope waveform):
(1) Waveform 1 (camera lens not covered, displaying an image)
Item |
Content |
---|---|
Measurement terminal |
E51-12 (V+) - E38-7 (GND1) |
Measurement setting |
200 mV/DIV., 50 μs./DIV. |
Condition |
Ignition switch ON, shift lever in R |
HINT:
*a |
Waveform 1 (camera lens not covered, displaying an image) |
*b |
Synchronization Signal |
*c |
Video Waveform |
(2) Waveform 2 (camera lens covered, blacking out the screen)
Item |
Content |
---|---|
Measurement terminal |
E51-12 (V+) - E38-7 (GND1) |
Measurement setting |
200 mV/DIV., 50 μs./DIV. |
Condition |
Ignition switch ON, shift lever in R |
HINT:
*a |
Waveform 2 (camera lens covered, blacking out the screen) |
*b |
Synchronization Signal |
*c |
Video Waveform |
2. STEREO COMPONENT TUNER ASSEMBLY (w/ SDARS System)
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
V7-3 (ACC2) - V7-8 (GND2) |
Y - B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
V7-4 (+B2) - V7-8 (GND2) |
R - B |
Power source (+B) |
Always |
11 to 14 V |
V7-8 (GND2) - Body ground |
B - Body ground |
Ground |
Always |
Below 1 V |
V9-1 (USV4) |
- |
Power source |
- |
- |
V9-2 (US4-) |
- |
Data signal |
- |
- |
V9-3 (US4+) |
- |
Data signal |
- |
- |
V9-4 (UGD4) |
- |
Ground |
- |
- |
V9-5 (USG4) |
- |
Shield ground |
- |
- |
V8-1 (LV1) |
- |
LVDS communication signal |
- |
- |
3. STEREO COMPONENT AMPLIFIER ASSEMBLY (for 13 Speakers)
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
E13-1 (+B) - E13-2 (GND) |
R - W-B |
Power source (+B) |
Always |
11 to 14 V |
E13-2 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 V |
E13-3 (+B2) - E13-2 (GND) |
R - W-B |
Power source (+B) |
Always |
11 to 14 V |
E13-6 (GND2) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 V |
E14-1 (MUTE) - E13-2 (GND) |
LG - W-B |
Mute signal |
Audio system playing |
Above 3.5 V |
Audio system changing sources |
Below 1 V |
|||
E14-2 (L-) - E13-2 (GND) |
W - W-B |
Sound signal (Left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E14-3 (L+) - E13-2 (GND) |
B - W-B |
Sound signal (Left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E14-4 (R-) - E13-2 (GND) |
G - W-B |
Sound signal (Right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E14-5 (R+) - E13-2 (GND) |
R - W-B |
Sound signal (Right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E14-6 (SLD) - E13-2 (GND) |
Shield - W-B |
Shield ground |
Always |
Below 1 V |
E14-7 (TX-) |
G |
AVC-LAN communication signal |
- |
- |
E14-8 (TX+) |
R |
AVC-LAN communication signal |
- |
- |
E14-11 (SPD) - E13-2 (GND) |
P - W-B |
Vehicle speed signal |
Ignition switch ON Wheels being rotated |
Pulse generation |
E14-12 (ACC) - E13-2 (GND) |
G - W-B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
E14-14 (II1-) - E13-2(GND) |
B - W-B |
Voice signal |
Voice guidance sounding |
A waveform synchronized with voice signals is output |
E14-15 (II1+) - E13-2 (GND) |
W - W-B |
Voice signal |
Voice guidance sounding |
A waveform synchronized with voice signals is output |
E14-18 (SLD1) - E13-2 (GND) |
Shield - W-B |
Shield ground |
Always |
Below 1 V |
E12-1 (WFL+) - E13-2 (GND) |
LG - W-B |
Sound signal (Front left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-2 (WFR+) - E13-2 (GND) |
P - W-B |
Sound signal (Front right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-3 (CTR+) - E13-2 (GND) |
G - W-B |
Sound signal (Front center) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-4 (WF2+) - E13-2 (GND) |
P - W-B |
Sound signal (Rear right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-5 (WFL-) - E13-2 (GND) |
L - W-B |
Sound signal (Front left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-6 (WFR-) - E13-2 (GND) |
V - W-B |
Sound signal (Front right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-7 (RR-) - E13-2 (GND) |
W - W-B |
Sound signal (Rear right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-8 (RR+) - E13-2 (GND) |
R - W-B |
Sound signal (Rear right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-9 (CTR-) - E13-2 (GND) |
R - W-B |
Sound signal (Front center) |
Audio system playing |
A waveform synchronized with sound signals is output |
E12-10 (WF2-) - E13-2 (GND) |
Y - W-B |
Sound signal (Rear right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-1 (SL+) - E13-2 (GND) |
L - W-B |
Sound signal (Rear left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-2 (SR+) - E13-2 (GND) |
LG - W-B |
Sound signal (Rear right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-3 (FL+) - E13-2 (GND) |
G - W-B |
Sound signal (Front left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-4 (RL+) - E13-2 (GND) |
B - W-B |
Sound signal (Rear left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-5 (WF1+) - E13-2 (GND) |
P - W-B |
Sound signal (Rear left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-6 (SL-) - E13-2 (GND) |
LG - W-B |
Sound -signal (Rear left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-7 (SR-) - E13-2 (GND) |
L - W-B |
Sound signal (Rear right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-8 (FL-) - E13-2 (GND) |
R - W-B |
Sound signal (Front left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-9 (FR-) - E13-2 (GND) |
P - W-B |
Sound signal (Front right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-10 (FR+) - E13-2 (GND) |
BR - W-B |
Sound signal (Front right) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-11 (RL-) - E13-2 (GND) |
Y - W-B |
Sound signal (Rear left) |
Audio system playing |
A waveform synchronized with sound signals is output |
E15-12 (WF1-) - E13-2 (GND) |
V - W-B |
Sound signal (Rear left) |
Audio system playing |
A waveform synchronized with sound signals is output |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
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 tab ...
ECU Power Source Circuit
DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the tire pressure warning ECU, read the transmitter IDs
stored in the old ECU using the Techstream and writ ...
Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
NOTICE:
Before installation, apply high temperature grease to the parts indicated by
arrows (See page ).
PROCEDURE
1. INSTALL NO. 2 PARKING BRAKE SHOE HOLD DOWN SPRING PIN (for 2WD)
(a) Install the No. 2 p ...