Audio And Visual System Terminals Of Ecu

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Audio Visual. Lexus Gs430, Gs300. Uzs190 Grs190
  1. CHECK RADIO RECEIVER ASSEMBLY

  1. CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY

  1. CHECK GATEWAY ECU

Audio And Visual System -- Terminals Of Ecu



CHECK RADIO RECEIVER ASSEMBLY

Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System  Terminals Of Ecu


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
B (L54-1) - GND (L54-20)
S-B - BR
Battery
Always
10 to 14 V
ILL+ (L54-2) - GND (L54-20)
G - BR
Illumination signal
Engine switch on (IG)
Light control switch OFF
Below 1 V
Engine switch on (IG)
Light control switch TAIL or ON
10 to 14 V
MUTE (L54-7) - GND (L54-20)
S-B - BR
Mute signal
Audio system is playing
Above 3.5 V
Changing mode
Below 1 V
MUTE (L53-6) - GND (L54-20)
P - BR
Mute signal
Audio system is playing
Above 3.5 V
Changing mode
Below 1 V
R+ (L54-8) - GND (L54-20)
R - BR
Sound signal (Right)
Audio system is playing
-
L+ (L54-9) - GND (L54-20)
B - BR
Sound signal (Left)
Audio system is playing
-
R- (L54-18) - GND (L54-20)
G - BR
Sound signal (Right)
Audio system is playing
-
L- (L54-19) - GND (L54-20)
W - BR
Sound signal (Left)
Audio system is playing
-
GND (L54-20) - Body ground
BR - Body ground
Ground
Always
Below 1 Ω
SGND (L54-10) - Body ground
Shielded - Body ground
Ground
Always
Below 1 Ω
ACC (L54-11) - GND (L54-20)
GR - BR
Accessory (ON)
Engine switch off
Below 1 V
Engine switch on (ACC)
10 to 14 V
ILL- (L54-12) - GND (L54-10)
W - BR
Illumination signal
Engine switch off
Below 1 V
Engine switch on (IG)
Pulse generation
TX+ (L56-9) - GND (L54-20)
L - BR
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
TX- (L56-10) - GND (L54-20)
LG - BR
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
TXM+ (L53-9) - GND (L54-20))
Y - BR
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
TXM- (L53-10) - GND (L54-20)
B - BR
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
ATX+ (L54-5) - GND (L54-20)
L - BR
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
ATX- (L54-15) - GND (L54-20)
LG - BR
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
ANT (L54 - 13)
O - BR
Antenna signal
Audio system is playing
-
SWG (L56-6) - GND (L54-20)
LG - BR
Steering pad switch signal
Audio system is playing
-
SW1 (L56-7) - GND (L54-20)
Y - BR
Steering pad switch signal
Audio system is playing
-
SW2 (L56-8) - GND (L54-20)
O - BR
Steering pad switch signal
Audio system is playing
-

CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY

Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System  Terminals Of Ecu


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
WFL+ *1 (V30-3) - GND (V31-16)
W - W-B
Sound signal (Front left)
Audio system is playing
-
WFR+ *1 (V30-4) - GND (V31-16)
G - W-B
Sound signal (Front right)
Audio system is playing
-
WFL- *1 (V30-9) - GND (V31-16)
R - W-B
Sound signal (Front left)
Audio system is playing
-
WFR- *1 (V30-10) - GND (V31-16)
W - W-B
Sound signal (Front right)
Audio system is playing
-
MUTE (V29-1) - GND (V31-16)
O - W-B
Mute signal from radio receiver
Audio system is sounding
Above 3.5 V
Changing mode
Below 3.5 V
L- (V29-2) - GND (V31 -16)
W - W-B
Sound signal from radio receiver (Left)
Audio system is playing
-
L+ (V29-3) - GND (V31-16)
B - W-B
Sound signal from radio receiver (Left)
Audio system is playing
-
R- (V29-4) - GND (V31-16)
G - W-B
Sound signal from radio receiver (Right)
Audio system is playing
-
R+ (V29-5) - GND (V31-16)
B - W-B
Sound signal from radio receiver (Right)
Audio system is playing
-
TX- (V29-7) - GND (V31-16)
L - W-B
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
TX+ (V29-8) - GND (V31-16)
LG - W-B
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
ACC (V29-12) - GND (V31-16)
GR - W-B
Accessory (ON)
Engine switch off
Below 1 V
Engine switch on (ACC)
10 to 14 V
SPD (V29-11) - GND (V31-16)
V - W-B
Speed signal from combination meter
Vehicle is being driven
Pulse generation
TXD- *1, RTX- *2 (V29-19) - GND (V31-16)
R - W-B
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
TXD+ *1, RTX+ *2 (V29-20) - GND (V31-16)
G - W-B
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
TMUT (V29-24) - GND (V31-16)
LG - W-B
Mute signal from radio receiver
Audio system is sounding
Above 3.5 V
Changing mode
Below 3.5 V
+B2 *1 (V31-10), +B *2 (V31-1) - GND (V31-16)
SB - W-B
Battery
Always
10 to 14 V
RL+ (V31-6) - GND (V31-16)
B - W-B
Sound signal (Rear left)
Audio system is playing
-
RR+ (V31-7) - GND (V31-16)
R - W-B
Sound signal (Rear right)
Audio system is playing
-
FL+ (V31-8) - GND (V31-16)
P - W-B
Sound signal (Front left)
Audio system is playing
-
FR- (V31-20) - GND (V31-16)
L - W-B
Sound signal (Front right)
Audio system is playing
-
RL- (V31-17) - GND (V31-16)
Y - W-B
Sound signal (Rear left)
Audio system is playing
-
RR- (V31-18) - GND (V31-16)
W - W-B
Sound signal (Rear right)
Audio system is playing
-
FL- (V31-19) - GND (V31-16)
V - W-B
Sound signal (Front left)
Audio system is playing
-
FR+ (V31-9) - GND (V31-16)
LG - W-B
Sound signal (Front right)
Audio system is playing
-
GND (V31-16) - Body ground
W-B - Body ground
Ground
Always
Below 1 Ω
GND2 (V31-15) - Body ground
W-B - Body ground
Ground
Always
Below 1 Ω
SL+ *1 (V30-1) - GND (V31-16)
LG - W-B
Sound signal (Rear LH)
Audio system is playing
-
SL- *1 (V30-5) - GND (V31-16)
L - W-B
Sound signal (Rear LH)
Audio system is playing
-
SR+ *1 (V30-2) - GND (V31-16)
B - W-B
Sound signal (Rear RH)
Audio system is playing
-
SR- *1 (V30-6) - GND (V31-16)
Y - W-B
Sound signal (Rear RH)
Audio system is playing
-
WF1+ (V31-5) - GND
P - W-B
Sound signal (Woofer)
Audio system is playing
-
WF1- (V31-14) - GND
V - W-B
Sound signal (Woofer)
Audio system is playing
-
WF2+ (V31-4) - GND
L - W-B
Sound signal (Woofer)
Audio system is playing
-
WF2- (V31-13) - GND
LG - W-B
Sound signal (Woofer)
Audio system is playing
-
CTR+ (V31-3) - GND
Y - W-B
Sound signal (Center)
Audio system is playing
-
CTR- (V31-12) - GND
B - W-B
Sound signal (Center)
Audio system is playing
-
INT+ (V29-23) - GND
Y - W-B
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
INT- (V29-22) - GND
BR - W-B
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
HINT:
  1. *1: Mark Levinson models
  2. *2: Standard models

CHECK GATEWAY ECU

Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System  Terminals Of Ecu


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
GTX+ (L66-6) - GND (L66-24)
L - W-B
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
GTX- (L66-21) - GND (L66-24)
LG - W-B
AVC-LAN communication signal
Engine switch on (ACC)
2 to 3 V
GND (L66-24) - Body ground
W-B - Body ground
Ground
Always
Below 1 Ω