Toyota Supra 2015 Wiring Diagram Manual page 104

SYSTEM OUTLINE
CURRENT IS APPLIED AT ALL TIMES THROUGH THE STOP FUSE TO TERMINAL 2 OF THE STOP LIGHT SW.
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 8 OF THE LIGHT FAILURE
SENSOR, AND ALSO FLOWS THROUGH THE REAR LIGHT WARNING LIGHT TO TERMINAL 4 OF THE LIGHT FAILURE SENSOR.
STOP LIGHT DISCONNECTION WARNING
WHEN THE IGNITION SW IS TURNED ON AND THE BRAKE PEDAL IS PRESSED (STOP LIGHT SW ON), IF THE
STOP LIGHT CIRCUIT IS OPEN, THE CURRENT FLOWING FROM TERMINAL 7 OF THE LIGHT FAILURE SENSOR
TO TERMINAL 2 CHANGES, SO THE LIGHT FAILURE SENSOR DETECTS THE DISCONNECTION AND THE
WARNING CIRCUIT OF THE LIGHT FAILURE SENSOR IS ACTIVATED.
AS A RESULT, THE CURRENT FLOWS FROM TERMINAL 4 OF THE LIGHT FAILURE SENSOR → TERMINAL 11 →
GROUND AND TURNS THE REAR LIGHT WARNING LIGHT ON. BY PRESSING THE BRAKE PEDAL, THE CURRENT
FLOWING TO TERMINAL 8 OF THE LIGHT FAILURE SENSOR KEEPS THE WARNING CIRCUIT ON HOLDING AND
THE WARNING LIGHT ON UNTIL THE IGNITION SW IS TURNED OFF.
SERVICE HINTS
S11 STOP LIGHT SW
2-1 :CLOSED WITH THE BRAKE PEDAL DEPRESSED
L 2 LIGHT FAILURE SENSOR
2, 7 GROUND : APPROX. 12 VOLTS WITH THE STOP LIGHT SW ON
4, 8 GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
11 GROUND : ALWAYS CONTINUITY
: PARTS LOCATION
CODE SEE PAGE
H14 30
L 2 30
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1C 20 FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E 20 INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
20 20 COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL) COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)
1I
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IE1 36 INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
40 BACK DOOR NO. 1 WIRE AND FLOOR NO. 2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
BM1
BO1 40 BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR UPPER LEFT)
: GROUND POINTS
CODE SEE PAGE GROUND POINTS LOCATION
BI 40 LEFT QUARTER PILLAR
BJ 40 LOWER BACK PANEL CENTER
BK 40 RIGHT SIDE OF HIGH MOUNTED STOP LIGHT
: SPLICE POINTS
CODE SEE PAGE WIRE HARNESS WITH SPLICE POINTS
B 4
40 40 FLOOR NO 2 WIRE FLOOR NO. 2 WIRE
B 6
H14 L 2
X 2
X 7 8
2 1
T 6
1
X X X 18
CODE
R 9
R10
R 9
4 X
X 11 X
X
3
5
SEE PAGE
30
30
CODE SEE PAGE
B10 40
R10
X
3
5
CODE SEE PAGE
S11 29
T 6 29
WIRE HARNESS WITH SPLICE POINTS
BACK DOOR NO. 2 WIRE
S11 BLUE
1 2
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