AUDIO AND VISUAL SYSTEM > TERMINALS OF ECU

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CHECK RADIO RECEIVER ASSEMBLY

E108084E07


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

E108288E02


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

I100018E03


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