TERMINALS OF ECU
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F47-4 (MACC) - F48-7 (GND1) |
B - LA |
Microphone power supply |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
4 to 6 V |
|||
F47-5 (MIN+) - F48-7 (GND1) |
W - LA |
Microphone voice signal |
"Bluetooth" hands-free voice signal received |
A waveform synchronized with sound signals is output |
F47-6 (SNS2) - F48-7 (GND1) |
V - LA |
Microphone connection detection signal |
Always |
Below 1 V |
F47-17 (SPD) - F48-7 (GND1) |
V - LA |
Vehicle speed signal |
Ignition switch ON Wheel being rotated |
Pulse generation |
F47-18 (SGND) - Body ground |
Shield - Body ground |
Shield ground |
Always |
Below 1 V |
F47-19 (MIN-) - F48-7 (GND1) |
R - LA |
Microphone voice signal |
"Bluetooth" hands-free voice signal received |
A waveform synchronized with sound signals is output |
F47-21 (SW1) - F47-23 (SWG) |
GR - W-B |
Steering pad switch signal |
No switch pushed |
2.97 to 3.56 V |
Seek+ switch pushed |
0.27 to 0.35 V |
|||
Seek- 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 |
|||
F47-22 (SW2) - F47-23 (SWG) |
G - W-B |
Steering pad switch signal |
No switch pushed |
2.97 to 3.56 V |
MODE 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 |
|||
F47-23 (SWG) - Body ground |
W-B - Body ground |
Steering pad switch signal |
Always |
Below 1 V |
F48-1 (FR+) - F48-7 (GND1) |
P - LA |
Sound signal (Front Right) |
Audio system playing |
A waveform synchronized with sound signals is output |
F48-2 (FL+) - F48-7 (GND1) |
W - LA |
Sound signal (Front Left) |
Audio system playing |
A waveform synchronized with sound signals is output |
F48-3 (ACC1) - F48-7 (GND1) |
GR - LA |
Power source (ACC) |
Ignition switch off |
Below 1 V |
Ignition switch ACC |
11 to 14 V |
|||
F48-4 (+B1) - F48-7 (GND1) |
LA-SB - LA |
Power source (+B) |
Always |
11 to 14 V |
F48-5 (FR-) - F48-7 (GND1) |
BR - LA |
Sound signal (Front Right) |
Audio system playing |
A waveform synchronized with sound signals is output |
F48-6 (FL-) - F48-7 (GND1) |
B - LA |
Sound signal (Front Left) |
Audio system playing |
A waveform synchronized with sound signals is output |
F48-7 (GND1) - Body ground |
LA - Body ground |
Ground |
Always |
Below 1 V |
F48-10 (ILL+) - Body ground |
G - Body ground |
Illumination signal |
Light control switch off |
Below 1 V |
Light control switch in tail or head position |
11 to 14 V |
|||
F49-1 (RR+) - F48-7 (GND1) |
R - LA |
Sound signal (Rear Right) |
Audio system playing |
A waveform synchronized with sound signals is output |
F49-2 (RL+) - F48-7 (GND1) |
B - LA |
Sound signal (Rear Left) |
Audio system playing |
A waveform synchronized with sound signals is output |
F49-3 (RR-) - F48-7 (GND1) |
W - LA |
Sound signal (Rear Right) |
Audio system playing |
A waveform synchronized with sound signals is output |
F49-6 (RL-) - F48-7 (GND1) |
Y - LA |
Sound signal (Rear Left) |
Audio system playing |
A waveform synchronized with sound signals is output |
RA-5 (ANT+) - F48-7 (GND1) |
- - LA |
Power source of antenna |
Ignition switch ACC Radio switch on and AM or FM selected |
11 to 14 V |
Toyota CH-R Service Manual > Navigation System: Black Screen
PROCEDURE
1.
CHECK DISPLAY SETTING
(a) Check that the display is not in screen off mode.
OK:
The display setting is not in screen off mode.
NG
CHANGE SCREEN TO SCREEN ON MODE
OK
...
Toyota CH-R Service Manual > Audio And Visual System(for Radio Receiver Type): Radio Broadcast cannot be Received or Poor Reception
PROCEDURE
1.
CHECK RADIO RECEIVER ASSEMBLY
(a) Check the radio automatic station search function.
(1) Check the radio automatic station search function by activating it.
Result
Proceed to
Automatic station search function doe ...