TERMINALS OF ECU
1. RADIO AND DISPLAY RECEIVER ASSEMBLY
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
R30-1 (FR+) - R30-7 (GND1) |
LA-R - W-B |
Sound signal (Front Right) |
Audio system playing |
A waveform synchronized with sounds is output |
R30-2 (FL+) - R30-7 (GND1) |
LA-B - W-B |
Sound signal (Front Left) |
Audio system playing |
A waveform synchronized with sounds is output |
R30-3 (ACC1) - R30-7 (GND1) |
GR - W-B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
R30-4 (+B1) - R30-7 (GND1) |
W - W-B |
Power source (+B) |
Always |
11 to 14 V |
R30-5 (FR-) - R30-7 (GND1) |
LA-G - W-B |
Sound signal (Front Right) |
Audio system playing |
A waveform synchronized with sounds is output |
R30-6 (FL-) - R30-7 (GND1) |
LA-W - W-B |
Sound signal (Front Left) |
Audio system playing |
A waveform synchronized with sounds is output |
R30-7 (GND1) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 V |
R30-10 (ILL+) - R30-7 (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 |
|||
R29-1 (RR+) - R30-7 (GND1) |
L - W-B |
Sound signal (Rear Right)*2 |
Audio system playing |
A waveform synchronized with sounds is output |
R29-2 (RL+) - R30-7 (GND1) |
W - W-B |
Sound signal (Rear Left)*2 |
Audio system playing |
A waveform synchronized with sounds is output |
R29-3 (RR-) - R30-7 (GND1) |
LG - W-B |
Sound signal (Rear Right)*2 |
Audio system playing |
A waveform synchronized with sounds is output |
R29-5 (ILL-) - R30-7 (GND1) |
BE - W-B |
Illumination (rheostat) signal |
Light control switch off and rheostat switch position medium |
Below 1 V |
Light control switch in tail or head position |
Pulse generation |
|||
R29-6 (RL-) - R30-7 (GND1) |
B - W-B |
Sound signal (Rear Right)*2 |
Audio system playing |
A waveform synchronized with sounds is output |
R31-1 (IG) - R30-7 (GND1) |
LG - W-B |
Power source (IG) |
Ignition switch off |
Below 1 V |
Ignition switch ON |
11 to 14 V |
|||
R31-2 (REV) - R30-7 (GND1) |
GR - W-B |
Reverse signal |
Ignition switch ON, shift lever not in R |
Below 1 V |
Ignition switch ON, shift lever in R |
11 to 14 V |
|||
R31-4 (MACC) - R30-7 (GND1) |
R - W-B |
Microphone power supply |
Ignition switch off |
Below 1 V |
Ignition switch ON |
4 to 6 V |
|||
R31-5 (MIN+) - R30-7 (GND1) |
G - W-B |
Microphone voice signal |
"Bluetooth" hands-free function on |
A waveform synchronized with sounds is output |
R31-6 (SNS2) - R30-7 (GND1) |
W - W-B |
Microphone connection detection signal |
Always |
Below 1 V |
R31-9 (CANH) |
V |
CAN communication signal |
- |
- |
R31-10 (CANL) |
W |
CAN communication signal |
- |
- |
R31-11 (AGND) - Body ground |
Shielded - Body ground |
Shield ground |
Always |
Below 1 V |
R31-15 (PKB) - R30-7 (GND1) |
Y - W-B |
Parking brake switch signal |
Parking brake switch off |
Below 1 V |
Parking brake switch on |
11 to 14 V |
|||
R31-18 (SGND) - Body ground |
Shielded - Body ground |
Shield ground |
Always |
Below 1 V |
R31-19 (MIN-) - R30-7 (GND1) |
B - W-B |
Microphone voice signal |
"Bluetooth" hands-free function on |
A waveform synchronized with sounds is output |
R31-17 (SPD) - R30-7 (GND1) |
V - W-B |
Vehicle Speed signal |
Ignition switch ON Wheel being rotated |
Pulse generation |
R31-21 (SW1) - R30-7 (GND1)*1 |
V - W-B |
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 |
|||
R31-22 (SW2) - R30-7 (GND1)*1 |
Y - W-B |
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 |
|||
R31-23 (SWG) - R30-7 (GND1)*1 |
SB - W-B |
Steering pad switch ground |
Always |
Below 1 V |
R31-25 (ADPG) - R30-7 (GND1) |
W-B - W-B |
External device connection detection signal |
External device connected |
Below 1 V |
R31-26 (VAR+) - R30-7 (GND1) |
W - W-B |
Sound signal (Right) |
External device playing (When stereo jack used) |
A waveform synchronized with sounds is output |
R31-27 (VA-) - R30-7 (GND1) |
R - W-B |
Ground |
Always |
Below 1 V |
R31-28 (VAL+) - R30-7 (GND1) |
B - W-B |
Sound signal (Left) |
External device playing (When stereo jack used) |
A waveform synchronized with sounds is output |
R32-3 (CNH1) |
B |
Local bus communication signal |
- |
- |
R32-4 (CNL1) |
W |
Local bus communication signal |
- |
- |
R32-24 (V-) - R30-7 (GND1) |
W - W-B |
Ground |
Always |
Below 1 V |
R32-12 (V+) - R32-24 (V-) |
R - W |
Video 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) |
|||
R32-23 (CGND) - Body ground |
Shield - Body ground |
Shield ground |
Always |
Below 1 V |
R32-11 (CA+) - R30-7 (GND1) |
B - W-B |
Power source |
Ignition switch ON, shift lever in R |
5.5 to 7.05 V |
R27-3 (ACC2) - R30-7 (GND1)*1 |
Y - W-B |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
R27-4 (+B2) - R30-7 (GND1)*1 |
R - W-B |
Power source (+B) |
Always |
11 to 14 V |
R27-8 (GND2) - Body ground*1 |
B - Body ground |
Ground |
Always |
Below 1 V |
R28-1 (UPO) |
- |
Power source |
- |
- |
R28-2 (UDO-) |
- |
Data signal |
- |
- |
R28-3 (UDO+) |
- |
Data signal |
- |
- |
R28-4 (UESG) |
- |
Ground |
- |
- |
R33-2 (US4-)*1 |
- |
Data signal |
- |
- |
R33-3 (US4+)*1 |
- |
Data signal |
- |
- |
R33-4 (UGO4)*1 |
- |
Ground |
- |
- |
R33-5 (USG4)*1 |
- |
Shield ground |
- |
- |
R34-1 (LVDS)*1 |
B |
LVDS communication signal |
- |
- |
RA-5 (ANT+) - R30-7 (GND1) |
B - W-B |
Power source of antenna |
Ignition switch ACC Radio switch on and AM or FM |
11 to 14 V |
(a) Using an oscilloscope, check the waveform.
(1) Waveform 1 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
R32-12 (V+) - R32-24 (V-) |
Tool Setting |
200 mV/DIV., 50 μsec./DIV. |
Condition |
Ignition switch ON, shift lever in R |
HINT:
The video waveform changes according to the image sent by the rear television camera assembly.
(2) Waveform 2 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
R32-12 (V+) - R32-24 (V-) |
Tool Setting |
200 mV/DIV., 50 μsec./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 rear 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. (Symbol) |
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) |
B |
Shield ground |
- |
- |
S54-1 (LVDS) |
- |
LVDS communication signal |
- |
- |
CD Sound Skips
PROCEDURE
1.
CHECK CD
(a) Check that the CD is not deformed or cracked.
OK:
No deformation or cracks on the CD
NG
CD IS FAULTY
OK
...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
NOTICE:
Always use a new grommet and valve core when installing the tire pressure
warning valve and transmitter.
Check that the washer and nut are not damaged, and replace them if necessary.
If installing a new tire pressure warning valv ...
Disassembly
DISASSEMBLY
PROCEDURE
1. INSPECT COUNTERSHAFT REVERSE GEAR THRUST CLEARANCE
(a) Using a dial indicator, measure the countershaft reverse gear thrust
clearance.
Standard clearance:
0.150 to 0.300 mm (0.0060 to 0.0118 in.)
If the clearance is outside the specification, repl ...