TSRM/MK2 Supra/Wiring Diagrams
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S21/Unlock and Seat Belt Warning — 21 Unlock and Seat Belt Warning, page 1

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21 Unlock and Seat Belt Warning — MK2 Supra Unlock and Seat Belt Warning wiring diagram, page 1
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Page text (OCR transcript)
21 UNLOCK AND SEAT BELT WARNING

7.5A GAUGE
7.5A DOME

18 21
5 20

Y

SEAT BELT WARNING RELAY
5
3 (ANALOG METER)
4 (DIGITAL METER)

Y
H

2 5 3

D SEAT BELT WARNING RELAY

4 6 1

G2
LG

15 G2

E S
2
BUCKLE S/W
1
5

C WARNING S/W

18 21
9 20
P-W

2 26

W-B

15 G2

W-B

D COURTESY S/W LH

UNDER J/B NO.3

© UNLOCK WARNING S/W
CLOSED WITH IGNITION KEY IN CYLINDER
© SEAT BELT WARNING RELAY
3-GROUND: ALWAYS 12 VOLTS
(POWER FOR IGNITION KEY WARNING BUZZER)
2-GROUND: 12 VOLTS WITH IGNITION S/W AT IG POSITION
(POWER AND SIGNAL OF BELT WARNING BUZZER FOR 4-8 SECONDS)
1-GROUND: CONTINUITY WITH DOOR OPEN AND IGNITION KEY IN CYLINDER
(SIGNAL OF IGNITION KEY WARNING BUZZER)
6-GROUND: CONTINUITY UNLESS DRIVER'S LAP BELT IN USE
(SIGNAL OF BELT WARNING BUZZER)
5-GROUND: 0 VOLT FOR 4-8 SECONDS WITH IGNITION S/W ON AND
12 VOLTS 4-8 SECONDS AFTER IGNITION S/W ON
© BUCKLE S/W
OPEN WITH DRIVER'S LAP BELT IN USE

A
4 5

B
3

C BLACK
5

D BLUE
1 2 3
4 5 6

E
I1|2

F

21

20

20
2
5

21 GREEN

G2

I8|5

I8|5

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