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 |
- |
- |
Lost Communication With ECM/PCM "A" Missing Message (U010087)
DESCRIPTION
The engine control unit and transmission control unit are located inside the
ECM. The engine control unit intercommunicates with the transmission control ECU
via CAN communication. If there is a problem in this intercommunication, the ECM
stores this DTC.
DTC Code
...
Clearance Sonar Main Switch Circuit
DESCRIPTION
The back sonar or clearance sonar switch assembly is installed at the base of
the driver side of the instrument panel.
When the back sonar or clearance sonar switch assembly is turned on, an on signal
is sent to the clearance warning ECU assembly. The intuitive parking assist syste ...
Fail-safe Chart
FAIL-SAFE CHART
1. Fail-safe
This function minimizes the loss of operation when any abnormality occurs in
a sensor or solenoid.
Fail-safe Control List
Malfunction Part
Function
Transmission revolution sensor (NT)
During a transmission revolutio ...