NAVIGATION SYSTEM(for HDD) TERMINALS OF ECU
NAVIGATION ECU SUB-ASSEMBLY
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specification
G137-1 (FR+) - G137-7 (GND1)
LG - BR
Sound signal (Right)
Audio system playing
A waveform synchronized with sound is output
G137-2 (FL+) - G137-7 (GND1)
P- BR
Sound signal (Left)
Audio system playing
A waveform synchronized with sound is output
G137-3 (ACC1) - G137-7 (GND1)
GR - BR
Power source (ACC)
Engine switch off
Below 1 V
Engine switch on (ACC)
11 to 14 V
G137-4 (+B1) - G137-7 (GND1)
SB - BR
Power source (+B)
Always
11 to 14 V
G137-5 (FR-) - G137-7 (GND1)
L - BR
Sound signal (Right)
Audio system playing
A waveform synchronized with sound is output
G137-6 (FL-) - G137-7 (GND1)
V - BR
Sound signal (Left)
Audio system playing
A waveform synchronized with sound is output
G137-7 (GND1) - Body ground
BR - Body ground
Ground
Always
Below 1 V
G137-10 (ILL+) - G137-7 (GND1)
G - BR
Illumination signal
Light control switch off
Below 1 V
Light control switch in tail or head position
11 to 14 V
G138-1 (RR+) - G137-7 (GND1)
R - BR
Sound signal (Rear Right)
Audio system playing
A waveform synchronized with sound is output
G138-2 (RL+) - G137-7 (GND1)
B - BR
Sound signal (Rear Left)
Audio system playing
A waveform synchronized with sound is output
G138-3 (RR-) - G137-7 (GND1)
W - BR
Sound signal (Rear Right)
Audio system playing
A waveform synchronized with sound is output
G138-6 (RL-) - G137-7 (GND1)
Y - BR
Sound signal (Rear Left)
Audio system playing
A waveform synchronized with sound is output
G49-6 (PKB) - G137-7 (GND1)
B - BR
Parking brake signal
See "Vehicle Signal Check Mode" in Operation Check
-
G49-7 (CA+) - G137-7 (GND1)
B - BR
Television camera power supply
Engine switch on (IG)
Shift lever in R
5.5 to 7.05 V
G49-8 (V+) - G137-7 (GND1)
W - BR
Video signal
Engine switch on (IG)
Shift lever in R
Camera lens is not covered, displaying an image
Pulse generation (Refer to waveform 1)
Engine switch on (IG)
Shift lever in R
Camera lens is covered, blacking out screen
Pulse generation (Refer to waveform 2)
G49-15 (CGND) - Body ground
Shielded - Body ground
Shielded ground
Always
Below 1 V
G49-16 (V-) - G137-7 (GND1)
R - BR
Ground
Always
Below 1 V
G139-1 (IG) - G137-7 (GND1)
Y - BR
Power source (IG)
Engine switch off
Below 1 V
Engine switch on (IG)
11 to 14 V
G139-2 (REV) - G137-7 (GND1)
BE - BR
Reverse signal
See "Vehicle Signal Check Mode" in Operation Check
-
G139-4 (MACC) - G137-7 (GND1)
B - BR
Microphone power supply
Engine switch off
Below 1 V
Engine switch on (ACC)
4 to 6 V
G139-5 (MIN+) - G137-7 (GND1)
W - BR
Microphone voice signal
See "Microphone & Voice Recognition Check" in Operation Check
-
G139-6 (SNS2) - G137-7 (GND1)
P - BR
Microphone connection detection signal
Always
Below 1 V
G139-9 (CANH)
Y
CAN communication signal
-
-
G139-10 (CANL)
W
CAN communication signal
-
-
G139-11 (AGND) - Body ground
Shielded - Body ground
Shielded ground
Always
Below 1 V
G139-17 (SPD) - G137-7 (GND1)
BE - BR
Vehicle speed signal from combination meter assembly
See "Vehicle Signal Check Mode" in Operation Check
-
G139-18 (SGND) - G137-7 (GND1)
Shielded - BR
Shielded ground
Always
Below 1 V
G139-19 (MIN-) - Body ground
R - Body ground
Microphone voice signal
See "Microphone & Voice Recognition Check" in Operation Check
-
G139-21 (SW1) - G139-23 (SWG)
W - B
Steering pad switch signal
No switch pushed
2.75 to 3.49 V
Up switch pushed
0 to 0.3 V
Down switch pushed
0.53 to 0.76 V
Volume+ switch pushed
1.19 to 1.6 V
Volume- switch pushed
1.95 to 2.54 V
G139-22 (SW2) - G139-23 (SWG)
R - B
Steering pad switch signal
No switch pushed
2.75 to 3.49 V
MODE/HOLD switch pushed
0 to 0.3 V
On hook switch pushed
0.53 to 0.76 V
Off hook switch pushed
1.19 to 1.6 V
Voice switch pushed
1.95 to 2.54 V
G139-23 (SWG) - Body ground
B - Body ground
Steering pad switch signal
Always
Below 1 V
G139-24 (SW3) - G139-23 (SWG)
G - B
Steering pad switch signal
Steering pad switch not operated
2.75 to 3.49 V
Enter switch pushed
0 to 0.3 V
Back switch pushed
0.53 to 0.76 V
Right switch pushed
1.19 to 1.6 V
Left switch pushed
2.75 to 3.49 V
G139-25 (ADPG) - G137-7 (GND1)
R - BR
External device connection detection signal
External device connected
Below 1 V
External device not connected
2.1 to 3 V
G139-26 (VAR+) - G139-27 (VA-)
W - R
Sound signal (Right)
External device playing (When stereo jack used)
A waveform synchronized with sound is output
G139-27 (VA-) - G137-7 (GND1)
R - BR
Sound signal ground
Always
Below 1 V
G139-28 (VAL+) - G139-27 (VA-)
B - R
Sound signal (Left)
External device playing (When stereo jack used)
A waveform synchronized with sound is output
G149-1 (UPO)
#
Power source
-
-
G149-2 (UDO-)
#
Data signal
-
-
G149-3 (UDO+)
#
Data signal
-
-
G149-4 (UESJ)
#
Ground
-
-
RA-5 (ANT+) - G137-7 (GND1)
B - BR
Power source of antenna
Engine switch on (IG)
Radio switch on and AM or FM selected
11 to 14 V
#: There is no wire color information
Reference (Oscilloscope waveform):
-
*a
Waveform 1 (camera lens not covered, displaying an image)
*b
Synchronization Signal
*c
Video Waveform
Waveform 1 (camera lens is not covered, displaying an image)
Item
Content
Measurement terminal
G49-8 (V+) - G137-7 (GND1)
Measurement setting
200 mV/DIV., 50 μsec./DIV.
Condition
Engine switch on (IG), Shift lever in R
Tip:The video waveform changes according to the image sent by the television camera assembly.
-
*a
Waveform 2 (camera lens covered, blacking out the screen)
*b
Synchronization Signal
*c
Video Waveform
Waveform 2 (camera lens is covered, blacking out the screen)
Item
Content
Measurement terminal
G49-8 (V+) - G137-7 (GND1)
Measurement setting
200 mV/DIV., 50 μsec./DIV.
Condition
Engine switch on (IG), Shift lever in R
Tip:The video waveform changes according to the image sent by the rear television camera assembly.
-