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 |
- |
- |
Satellite Radio Tuner
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE RADIO AND DISPLAY RECEIVER ASSEMBLY WITH BRACKET
(See page )
2. REMOVE NO. 1 NAVIGATION WIRE
(a) Disconnect the 6 connectors to remove the No. 1 navigation wire.
...
Fuel Receiver Gauge Malfunction
DESCRIPTION
The meter CPU uses the fuel sender gauge assembly to determine the level of the
fuel in the fuel tank. The resistance of the fuel sender gauge will vary between
approximately 13.5 Ω with the float at the full position, and 414.5 Ω with the float
at the empty position. The meter ...
Engine does not Start but Initial Combustion Occurs
DESCRIPTION
If the key ID codes of the key and transponder key ECU assembly match, the engine
immobiliser system is unset and the engine start permission signal is sent to the
ECM. When the ID codes of the transponder key ECU assembly and ECM match, the engine
starts.
WIRING DIAGRAM
CAUTI ...