TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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WD/Wiring Diagrams, page 57

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Wiring Diagrams — MK4 Supra Wiring Diagrams, page 57
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Page text (OCR transcript)
POWER SOURCE

SERVICE HINTS
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
CODE     SEE PAGE     CODE     SEE PAGE     CODE     SEE PAGE
I19      29

: RELAY BLOCKS
CODE     SEE PAGE     RELAY BLOCKS (RELAY BLOCK LOCATION)
2        22           R/B NO. 2 (ENGINE COMPARTMENT LEFT )
4        23           R/B NO. 4 (LEFT KICK PANEL)

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODE     SEE PAGE     JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B       20           ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1C       20           FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
1J       20           COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
2A       22           BATTERY AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
2B       22           ENGINE ROOM MAIN WIRE AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODE     SEE PAGE     JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB1      36           ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IC2      36           FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)

: SPLICE POINTS
CODE     SEE PAGE     WIRE HARNESS WITH SPLICE POINTS     CODE     SEE PAGE     WIRE HARNESS WITH SPLICE POINTS
E 7      32           ENGINE ROOM MAIN WIRE               E 8      32           ENGINE ROOM MAIN WIRE

I19
[CONNECTOR DIAGRAM SHOWING PINS: X, 2, 3, 4, 5, X, 7, 8]

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