1986 TOYOTA SUPRA brake light

58
POWER SOURCE
HEADLIGHT RELAY (FOR USA)
2±1 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION OR DIMMER SW AT FLASH POSITION
HEADLIGHT RELAY (FOR CANADA)
2±1 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION OR DIMMER SW AT FLASH POSITION
: CLOSED WITH ENGINE RUNNING AND PARKING BRAKE LEVER RELEASED (PARKING BRAKE SW OFF)
TAILLIGHT RELAY
5±3: CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION
I19 IGNITION SW
7±5 : CLOSED WITH IGNITION KEY AT ACC OR ON POSITION
7±4 : CLOSED WITH IGNITION KEY AT ON OR ST POSITION
2±3 : CLOSED WITH IGNITION KEY AT ON OR ST POSITION
7±8 : CLOSED WITH IGNITION KEY AT ST POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
I1929
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT )
423R/B NO. 4 (LEFT KICK PANEL)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
2A22BATTERY AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
2B22ENGINE ROOM MAIN WIRE AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB136ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 732ENGINE ROOM MAIN WIREE 832ENGINE ROOM MAIN WIRE
SERVICE HINTS

78
ENGINE CONTROL (FOR 2JZ±GTE)
EFI MAIN RELAY
(2) 3± (2) 5 : CLOSED WITH IGNITION SW AT ON POSITION
EFI NO. 2 RELAY
(2) 3± (2) 5 : CLOSED WITH IGNITION SW AT ON POSITION
E 3 ENGINE COOLANT TEMP. SENSOR (EFI WATER TEMP. SENSOR)
1± 2:10±20 K (±20°C, ±4°F)
4± 7 K ( 0°C, 32°F)
2± 3 K (20°C, 68°F)
0.9±1.3 K (40°C, 104°F)
0.4±0.7 K (60°C, 140°F)
0.2±0.4 K (80°C, 176°F)
I 1 IDLE AIR CONTROL VALVE (ISC VALVE)
1, 3± 2: APPROX. 10±30 
4, 6± 5: APPROX. 10±30 
I12, I13, I14, I15, I16, I17 INJECTOR
1± 2: APPROX. 13±8 
T 2 THROTTLE POSITION SENSOR
1± 4: APPROX. 4±9 K
1± 3:3.3± 10.0 K WITH THROTTLE VALVE FULLY OPENED POSITION
0.2± 0.8 K WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0 MM (0 IN.)
1± 2:0±2.3 K WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0.45 MM (0.0177 IN.)
INFINITY WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0.55 MM (0.0216 IN.)
E 9(B), E10(A) ENGINE CONTROL MODULE (ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU)
(VOLTAGE AT ENGINE CONTROL MODULE (ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU) WIRING CONNECTORS)
BATT±E1 : ALWAYS 9±14 VOLTS
IGSW±E1 : 9±14 VOLTS WITH IGNITION SW ON
M±REL±E1 : 9±14 VOLTS WITH IGNITION SW ON
+B±E1 : 9±14 VOLTS WITH IGNITION SW ON
IDL1±E2 : 9±14 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE FULLY OPEN
:0 ±1.5 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED
VTA1±E2 :0.3± 0.8 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED
:3.2±4.9 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE OPEN
#10, #20, #30±E01, E02 : PULSE GENERATION (ENGINE IDLING)
#40, #50, #60±E01, E02 : PULSE GENERATION (ENGINE IDLING)
THA±E2 : 0.5±3.4 VOLTS WITH IGNITION SW ON AND INTAKE AIR TEMP. 20°C (68°F)
THW±E2 : 0.2±1.0 VOLTS WITH IGNITION SW ON AND COOLANT TEMP. 80°C (176°F)
STA±E1 : 6±14 VOLTS WITH ENGINE CRANKING
ISC1, ISC2, ISC3, ISC4±E1 : PULSE GENERATION (ENGINE IDLING)
W±E1 :9±14 VOLTS WITH ENGINE IDLING
IGF±E1 : PULSE GENERATION (ENGINE IDLING)
NSW±E1 :0±3 VOLTS WITH IGNITION SW ON AND SHIFT LEVER P OR N POSITION
9±14 VOLTS WITH IGNITION SW ON AND SHIFT LEVER EXCEPT P OR N POSITION
SP1 : PULSE GENERATION
TE1, TE2±E1 :9±14 VOLTS WITH IGNITION SW ON
A/C±E1 :0±1.5 VOLTS WITH IGNITION SW ON AND A/C OFF
7.5±14 VOLTS WITH IGNITION SW ON AND A/C ON
ELS±E1 : 9±14 VOLTS WITH TAILLIGHT ON, DEFOGGER ON
0±1.5 VOLTS WITH TAILLIGHT OFF, DEFOGGER OFF
STP±E1 :7.5±14 VOLTS WITH STOP LIGHT SW ON (BRAKE PEDAL DEPRESSED)
0±1.5 VOLTS WITH STOP LIGHT SW OFF
(RESISTANCE OF ENGINE CONTROL MODULE (ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU) WIRING CONNECTORS)
IDL1±E2 : INFINITY WITH THROTTLE VALVE OPEN
:0±2.3 KWITH THROTTLE VALVE FULLY CLOSED
VTA1±E2 :3.3 K10.0KWITH THROTTLE VALVE FULLY OPEN
:200  ±800  WITH THROTTLE VALVE FULLY CLOSED
VCC±E2 : 4 K±9 K
THA±E2 : 2 K±3 KWITH INTAKE AIR TEMP. 20°C (68°F)
THW±E2 : 200 ±400  WITH COOLANT TEMP. 80°C (176°F)
ISC1, ISC2, ISC3, ISC4± +B :10±30 
#10, #20, #30, #40, #50, #60± +B : 13.2 ±14.2 
SERVICE HINTS

90
ENGINE CONTROL (FOR 2JZ±GE)
EFI MAIN RELAY
(2) 3± (2) 5 : CLOSED WITH IGNITION SW AT ON POSITION
E 3 ENGINE COOLANT TEMP. SENSOR (EFI WATER TEMP. SENSOR)
1± 2:10±20 K (±20°C, ±4°F)
4± 7 K ( 0°C, 32°F)
2± 3 K (20°C, 68°F)
0.9±1.3 K (40°C, 104°F)
0.4±0.7 K (60°C, 140°F)
0.2±0.4 K (80°C, 176°F)
I 1 IDLE AIR CONTROL VALVE (ISC VALVE)
1, 3± 2: APPROX. 10±30 
4, 6± 5: APPROX. 10±30 
I12, I13, I14, I15, I16, I17 INJECTOR
1± 2: APPROX. 13±8 
T 2 THROTTLE POSITION SENSOR
1± 4: APPROX. 4±9 K
1± 3:3.3± 10.0 K WITH THROTTLE VALVE FULLY OPENED POSITION
0.2± 0.8 K WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0 MM (0 IN.)
1± 2:0±2.3 K WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0.45 MM (0.0177 IN.)
INFINITY WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0.55 MM (0.0216 IN.)
E 9(B), E10(A) ENGINE CONTROL MODULE (ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU)
(VOLTAGE AT ENGINE CONTROL MODULE (ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU) WIRING CONNECTORS)
BATT±E1 : ALWAYS 9±14 VOLTS
IGSW±E1 : 9±14 VOLTS WITH IGNITION SW ON
M±REL±E1 : 9±14 VOLTS WITH IGNITION SW ON
+B±E1 : 9±14 VOLTS WITH IGNITION SW ON
IDL1±E2 : 9±14 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE FULLY OPEN
:0 ±1.5 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED
VTA1±E2 :0.3± 0.8 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED
:3.2±4.9 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE OPEN
#10, #20, #30±E01, E02 : PULSE GENERATION (ENGINE IDLING)
#40, #50, #60±E01, E02 : PULSE GENERATION (ENGINE IDLING)
THA±E2 : 0.5±3.4 VOLTS WITH IGNITION SW ON AND INTAKE AIR TEMP. 20°C (68°F)
THW±E2 : 0.2±1.0 VOLTS WITH IGNITION SW ON AND COOLANT TEMP. 80°C (176°F)
STA±E1 : 6±14 VOLTS WITH ENGINE CRANKING
ISC1, ISC2, ISC3, ISC4±E1 : PULSE GENERATION (ENGINE IDLING)
W±E1 :9±14 VOLTS WITH ENGINE IDLING
IGF±E1 : PULSE GENERATION (ENGINE IDLING)
NSW±E1 :0.3 VOLTS WITH IGNITION SW ON AND SHIFT LEVER P OR N POSITION
9±14 VOLTS WITH IGNITION SW ON AND SHIFT LEVER EXCEPT P OR N POSITION
SP1 : PULSE GENERATION
TE1, TE2±E1 :9±14 VOLTS WITH IGNITION SW ON
A/C±E1 :0±1.5 VOLTS WITH IGNITION SW ON AND A/C OFF
7.5±14 VOLTS WITH IGNITION SW ON AND A/C ON
ELS±E1 : 9±14 VOLTS WITH TAILLIGHT ON, DEFOGGER ON
0±1.5 VOLTS WITH TAILLIGHT OFF, DEFOGGER OFF
STP±E1 :7.5±14 VOLTS WITH STOP LIGHT SW ON (BRAKE PEDAL DEPRESSED)
0±1.5 VOLTS WITH STOP LIGHT SW OFF
(RESISTANCE OF ENGINE CONTROL MODULE (ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU) CONNECTORS)
IDL1±E2 : INFINITY WITH THROTTLE VALVE OPEN
:0±2.3 KWITH THROTTLE VALVE FULLY CLOSED
VTA1±E2 :3.3 K10.0KWITH THROTTLE VALVE FULLY OPEN
:200  ±800  WITH THROTTLE VALVE FULLY CLOSED
VCC±E2 : 4 K±9 K
THA±E2 : 2 K±3 KWITH INTAKE AIR TEMP. 20°C (68°F)
THW±E2 : 200 ±400  WITH COOLANT TEMP. 80°C (176°F)
ISC1, ISC2, ISC3, ISC4± +B :10±30 
#10, #20, #30, #40, #50, #60± +B : 13.2 ±14.2 
ACIS± +B : 38.5 ±44.5 
SERVICE HINTS

96
HEADLIGHT (FOR CANADA)
1H 12 2
1 1
L
GENERATOR
(
ALTERNATOR)PARKING
BRAKE SW BA TTERYDAYTIME RUNNING
LIGHT RELAY(
MAIN) 10A
GAU GE7. 5A
DOME FROM POWER SOURCESYSTEM(
SEE PAGE 56)
D6
P5 G2
Y
Y±G B
Y±G
BR±W
11 8 2152
22
13
2
1 2450A MAINHEADLIGHT
RELAY
R
R±Y
W
R
R±Y
W
1
2B 1
IF2 7
Y±G
2A 1
II1 341B 5
1H 9
R R

97
2 117 5
6
14 13
12 9 117
13 16 18COMBINATION
SW
OFF
TA IL
HEA D
LOW
FLASH
DIMMER SWLIGHT
CONTROL
SW
C13R
R±W
W±B W±BG±WW±B
G±W
R R±Y
R±YR±Y
R±Y R
R±Y
W
R±Y
HIGH E7
IB3 1
2 1
EBI4
I2
I2 DAYTIME RUNNING
LIGHT RELAY(
MAIN) D6
TO THEFT DETERRENT ECU
R±Y B±W R±W W±B
IG1K 5
1J 1
W±B W±B
R±L
W W
R±Y
B2 DIODE
BRAKE FLUID
LEVEL WARNING SWIB 2 13
R±Y
4
431 2422
22
R±L
DIMMER RELAY
(
DAYTIME RUNNING
LIGHT RELAY NO. 2)
INTEGRATION
RELAY I20
IE

99
VOLTAGE IS ALWAYS APPLIED FROM THE MAIN FUSE, THROUGH THE HEADLIGHT RELAY (COIL SIDE) TO TERMINAL 5 OF THE
DAYTIME RUNNING LIGHT RELAY (MAIN), TERMINAL 6 OF INTEGRATION RELAY, TERMINAL 14 OF DIMMER SW, DIMMER RELAY
(DAYTIME RUNNING LIGHT RELAY NO. 2) (COIL SIDE), TO TERMINAL 17 OF THE DAYTIME RUNNING LIGHT RELAY (MAIN). WHEN THE
IGNITION SW IS TURNED ON, VOLTAGE FROM THE GAUGE FUSE IS APPLIED TO TERMINAL 2 OF THE DAYTIME RUNNING LIGHT
RELAY (MAIN).
1. DAYTIME RUNNING LIGHT OPERATION
WHEN THE ENGINE STARTS, VOLTAGE FROM TERMINAL ªLº OF THE GENERATOR (ALTERNATOR) IS APPLIED TO TERMINAL 11 OF
THE DAYTIME RUNNING LIGHT RELAY (MAIN). IF THE PARKING BRAKE LEVER IS PULLED UP (PARKING BRAKE SW ON) AT THIS
TIME, THE DAYTIME RUNNING LIGHT SYSTEM DOES NOT OPERATE. WHEN THE PARKING BRAKE IS RELEASED (PARKING BRAKE
SW OFF), A SIGNAL IS OUTPUT FROM TERMINAL 1 OF THE PARKING BRAKE SW TO TERMINAL 8 OF THE DAYTIME RUNNING LIGHT
RELAY (MAIN). THIS ACTIVATES THE DAYTIME RUNNING LIGHT RELAY (MAIN), TURNING ON THE DIMMER RELAY (DAYTIME
RUNNING LIGHT RELAY NO. 2). CURRENT ALSO FLOWS FROM THE MAIN FUSE TO DIMMER RELAY (DAYTIME RUNNING LIGHT
RELAY NO. 2) (POINT SIDE) " HEAD (LH±UPR) FUSE " HEADLIGHT HI LH " HEADLIGHT HI RH " TERMINAL (A)5 OF DAYTIME
RUNNING LIGHT RELAY NO. 3 " TERMINAL (A)3 " GROUND, CAUSING THE HEADLIGHTS TO LIGHT UP AT APPROX. 20 % OF THEIR
NORMAL BRIGHTNESS.
ONCE THE DAYTIME RUNNING LIGHT RELAY (MAIN) HAS BEEN ACTIVATED AND THE HEADLIGHTS LIGHT UP, THE HEADLIGHTS
REMAIN ON EVEN IF THE PARKING BRAKE LEVER IS ENGAGED AGAIN (PARKING BRAKE SW ON).
2. HEADLIGHT OPERATION
WHEN THE LIGHT CONTROL SW IS AT HEAD POSITION AND THE DIMMER SW AT LOW POSITION, CURRENT FLOWS FROM THE
HEADLIGHT RELAY (COIL SIDE) TO TERMINAL 6 OF THE INTEGRATION RELAY " TERMINAL 7 " TERMINAL 13 OF LIGHT CONTROL
SW " TERMINAL 11 " GROUND, ACTIVATING THE HEADLIGHT RELAY.
THIS CAUSES CURRENT TO FLOW FROM THE HEADLIGHT RELAY (POINT SIDE) TO THE HEAD LWR FUSE " HEADLIGHT LO "
GROUND, CAUSING THE HEADLIGHTS TO LIGHT UP AT NORMAL BRIGHTNESS. SIMULTANEOUSLY, CURRENT FLOWS FROM THE
DRL FUSE " DAYTIME RUNNING LIGHT RELAY NO. 3 (COIL SIDE) " GROUND, ACTIVATING RELAY NO. 3.
WHEN THE DIMMER SW IS AT HIGH POSITION, TERMINAL 12 OF THE DIMMER SW OUTPUTS A SIGNAL TO TERMINAL 16 OF THE
DAYTIME RUNNING LIGHT RELAY (MAIN) TO ACTIVATE IT. THIS TURNS ON DIMMER RELAY (DAYTIME RUNNING LIGHT RELAY NO. 2).
SO CURRENT FLOWS FROM DIMMER RELAY (DAYTIME RUNNING LIGHT RELAY NO. 2) (POINT SIDE) TO THE HEAD (LH±UPR) FUSE
" HEADLIGHT HI LH " DAYTIME RUNNING LIGHT RELAY NO. 3 (POINT SIDE) " GROUND, AND FROM THE HEAD (RH±UPR) FUSE "
DAYTIME RUNNING LIGHT RELAY NO. 3 (POINT SIDE) " HEADLIGHT HI RH " DAYTIME RUNNING LIGHT RELAY NO. 3 (POINT SIDE)
" GROUND, CAUSING THE HEADLIGHTS TO OPERATE AT HI.
WHEN THE DIMMER SW IS AT FLASH POSITION, CURRENT FROM THE HEADLIGHT RELAY (COIL SIDE) FLOWS TO TERMINAL 14 OF
THE DIMMER SW " TERMINAL 9 " GROUND, ACTIVATING THE RELAY. SIMULTANEOUSLY, CURRENT FROM THE HEADLIGHT RELAY
(POINT SIDE) FLOWS TO HEADLIGHT LO, LIGHTING UP HEADLIGHT LO AND ACTIVATING DAYTIME RUNNING LIGHT RELAY NO. 3.
THEN TERMINAL 12 OF THE DIMMER SW OUTPUTS A SIGNAL TO TERMINAL 16 OF THE DAYTIME RUNNING LIGHT RELAY (MAIN),
ACTIVATING THE DAYTIME RUNNING LIGHT RELAY (MAIN) SO THAT CURRENT FLOWS TO HEADLIGHT HI LIKE IT DOES FOR HIGH
POSITION. THIS CAUSES ALL HEADLIGHTS TO LIGHT UP.
D 6 DAYTIME RUNNING LIGHT RELAY (MAIN)
15±GROUND : ALWAYS APPROX. 12 VOLTS
2±GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
13±GROUND : ALWAYS CONTINUOUS
5±GROUND : APPROX. 12 VOLTS WITH THE DAYTIME RUNNING LIGHT SYSTEM
DOES NOT OPERATE OR LIGHT CONTROL SW AT OFF OR TAIL POSITION
(WITH THE CONNECTOR IS DISCONNECTED, ALWAYS APPROX. 12 VOLTS)
8±GROUND : CONTINUOUS WITH THE PARKING BRAKE LEVER RELEASED
SYSTEM OUTLINE
SERVICE HINTS

109
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 7 OF THE INTEGRATION RELAY THROUGH GAUGE
FUSE.
VOLTAGE IS APPLIED AT ALL TIMES TO TERMINAL (A) 5 OF THE INTEGRATION RELAY THROUGH THE TAILLIGHT RELAY COIL, AND
TO TERMINAL (A) 6 THROUGH THE HEADLIGHT RELAY COIL.
1. NORMAL LIGHTING OPERATION
(TURN TAILLIGHT ON)
WITH LIGHT CONTROL SW TURNED TO TAIL POSITION, A SIGNAL IS INPUT INTO TERMINAL (A) 4 OF THE INTEGRATION RELAY. DUE
TO THIS SIGNAL, THE CURRENT FLOWING TO TERMINAL (A) 5 OF THE RELAY FLOWS TO TERMINAL (A) 4 " TERMINAL 2 OF THE
LIGHT CONTROL SW " TERMINAL 11 " TO GROUND, AND TAILLIGHT RELAY CAUSES TAILLIGHTS TO TURN ON.
(TURN HEADLIGHT ON)
WITH LIGHT CONTROL SW TURNED TO HEAD POSITION, A SIGANL IS INPUT INTO TERMINAL (A) 4 AND (A) 7 OF THE INTEGRATION
RELAY. DUE TO THIS SIGNAL, THE CURRENT FLOWING TO TERMINAL (A) 6 OF THE RELAY FLOWS TO TERMINAL (A) 7 " TERMINAL
13 OF THE LIGHT CONTROL SW " TERMINAL 11 " TO GROUND IN THE HEADLIGHT CIRCUIT, AND CAUSES TAILLIGHT AND
HEADLIGHT RELAY TO TURN THE LIGHTS ON. THE TAILLIGHT CIRCUIT IS SAME AS ABOVE.
2. LIGHT AUTO TURN OFF OPERATION
WITH LIGHT ON AND THE IGNITION SW TURNED OFF (INPUT SIGNAL GOES TO TERMINAL 7 OF THE RELAY), WHEN THE DRIVER'S
DOOR IS OPENED (INPUT SIGNAL GOES TO TERMINAL 6 OF THE RELAY), THE RELAY OPERATES AND THE CURRENT IS CUT OFF
WHICH FLOWS FROM TERMINAL (A) 5 OF THE RELAY TO TERMINAL (A) 4 IN TAILLIGHT CIRCUIT AND FROM TERMINAL (A) 6 TO
TERMINAL (A) 7 IN HEADLIGHT CIRCUIT.
AS A RESULT, ALL LIGHTS ARE TURNED OFF AUTOMATICALLY.
HEADLIGHT RELAY
2 1± : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION OR DIMMER SW AT FLASH POSITION (FOR USA)
: CLOSED WITH ENGINE RUNNING AND PARKING BRAKE LEVER RELEASED (FOR CANADA)
TAILLIGHT RELAY
3±5 : CLOSED WITH LIGHT CONTROL SW AT TA I L OR HEAD POSITION
D10 DOOR COURTESY SW LH
3±2 : CLOSED WITH LH DOOR OPEN
I20(A) INTEGRATION RELAY
7±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
6±GROUND : CONTINUOUS WITH LH DOOR OPEN
1±GROUND : ALWAYS APPROX. 12 VOLTS
(A) 5±GROUND : ALWAYS APPROX. 12 VOLTS
(A) 6±GROUND : ALWAYS APPROX. 12 VOLTS
(A) 7±GROUND : CONTINUOUS WITH LIGHT CONTROL SW AT HEAD POSITION
(A) 4±GROUND : CONTINUOUS WITH LIGHT CONTROL SW AT TA I L OR HEAD POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C1328D1030I20A29
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1I
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
2A22BATTERY AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
SYSTEM OUTLINE
SERVICE HINTS

11 5
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.
S11 STOP LIGHT SW
2±1 : CLOSED WITH BRAKE PEDAL DEPRESSED
L 2 LIGHT FAILURE SENSOR
2, 7±GROUND : APPROX. 12 VOLTS WITH STOP LIGHT SW ON
4, 8±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
11±GROUND : ALWAYS CONTINUOUS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
H1430R 930S1129
L 230R1030T 629
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1I20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IE136INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
BM140BACK DOOR NO. 1 WIRE AND FLOOR NO. 2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
B0140BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR UPPER LEFT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
BI40LEFT QUARTER PILLAR
BJ40LOWER BACK PANEL CENTER
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
B 340FLOOR NO 2 WIREB 740FLOOR NO. 2 WIRE
B 540FLOOR NO. 2 WIRE
1 2X 4 2 X
X7 8 X11X
X
3
5X
3
512
1
XXX H14 L 2 R 9 R10 S11
T6BLUE
18
SYSTEM OUTLINE
SERVICE HINTS