1991 LEXUS SC400 center console

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Page 3937 of 4087

LEXUS SC400 1991  Service Repair Manual 
92
ILLUMINATION
TAILLIGHT RELAY5±3 : CLOSED WITH LIGHT CONTROL SW AT  TAIL OR HEAD  POSITION
C15  LIGHT CONTROL SW [COMB. SW]
3±4 : CLOSED WITH LIGHT CONTROL SW AT  TAIL OR HEAD  POSITION
: PARTS L

Page 4043 of 4087

LEXUS SC400 1991  Service Repair Manual 
213
R 4(A)  RADIO AND PLAYER
(A)  3±GROUND : APPROX.  12 VOLTS WITH IGNITION SW AT  ACC OR ON POSITION
(A)  4±GROUND : ALWAYS APPROX.  12 VOLTS
S14(B)  STEREO POWER AMPLIFIER
(B)  7±GROUND : ALWAY

Page 4046 of 4087

LEXUS SC400 1991  Service Repair Manual 
216
RADIO AND PLAYER (w/o CD PLAYER)
R 5(A)  RADIO AND PLAYER
(A)  3±GROUND : APPROX.  12 VOLTS WITH IGNITION SW AT  ACC OR ON POSITION
(A)  4±GROUND : ALWAYS APPROX.  12 VOLTS
(A)  7±GROUND : ALW

Page 4048 of 4087

LEXUS SC400 1991  Service Repair Manual 
7XXX XX X
10 12 12
87 BA
N2
C22
A1 3
A12
A(
W/ MEMORY )
R16, R17
54B
R16, R17 (
W/O MEMORY ) 1
R
14 ,
R15
AB
193
DEFOGGER RELAY
2±4 : CLOSED WITH IGNITION SW AT  ON POSITION AND DEFOGGER SW (A/C CON

Page 4083 of 4087

LEXUS SC400 1991  Service Repair Manual 
105
TURN SIGNAL FLASHER
(4) 3 ± GROUND: CHANGES FROM APPROX.  12 VOLTS TO  0 VOLTS WITH IGNITION SW ON AND TURN SIGNAL SW LEFT, OR WITH
HAZARD SW ON
(4)  5 ± GROUND: CHANGES FROM APPROX.  12 VOLTS
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