GMC ST 350 1988, Wiring Diagram

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CIRCUIT
NO.
WIRE
SIZE
COLOR
CAVITY DESCRIPTION
4 6 5 .8 D K G R N /W H T A1
FUEL P U M P R E LA Y DRIVE
A 2 N O T USED
A 3 N O T USED
4 3 5 .8 G R A
A 4 EGR/EFE
4 1 9 .8 B R N /W H T A 5 S Y S T E M CH EC K L A M P
4 3 9 1 .0 P N K /B LK A 6 1 2 V IG N IT IO N FUSED
* 4 2 2 .8
T A N /B L K A 7 TO R Q U E C O NVERTER C L U T C H
* 4 5 6 .8 T A N /B L K A 7 U PSH IFT M A N - O N L Y
4 6 1 .8 O R N /B LK A 8 SERIAL D A T A
4 5 1 .8 W H T /B L K A 9
A S S Y LINE L IN K /D IA G .
4 3 7 .8 BRN A 1 0 SPEED SENSOR
4 5 2
.8
BLK A 1 1 5 V RETURN B
4 5 0 1 .0
B L K /W H T A 1 2 S Y S T E M RETURN
4 4 0 1 .0 ORN B1 1 2 V B A T T E R Y FUSED
1 2 0 1 .0 T A N /W H T B2
ELEC FUEL P U M P FUSED FEED
4 5 3 .8 BLK/R ED B3 D IS TR IB U TO R REF LO W
B 4 N O T USED
4 3 0 .8 P P L /W H T B 5 D IS TR IB U TO R REF HIGH
B 6 N O T USED
4 8 5 .8 BLK
B7 S P A R K R ETAR D C O N TR O L
5 9 .8 DK G R N /W H T B 8 A IR C O N D IT IO N
B 9 N O T USED
A
4 3 4
.5 O R N /B LK B 1 0 P A R K /N E U T R A L S W IT C H
B 11
N O T USED
B 1 2 N O T USED
* 4 2 2 - A U T O TR A N S O N L Y
1
C A V ,TY A 2
* 4 5 6 - M A N . TR A N S O N L Y ]
A
A U T O TR A N S ONLY
CIRCUIT
NO.
WIRE
SIZE
COLOR
CAVITY
DESCRIPTION
C l N O T USED
4 3 6 .8 BRN C 2 A IR S W SO LEN O ID
4 4 4
.8 LT G R N /B LK
C 3 STEPPER C O IL B LO W
4 4 3
.8 LT G R N /W H T C 4
STEPPER C O IL B HIG H
4 4 1 .8 LT B L U /W H T C 5 STEPPER C O IL A HIGH
4 4 2 .8 LT B LU /B LK C 6 STEPPER C O IL A LO W
4 4 6
.8
LT BLU C 7 HIG H GEAR
C 8 N O T USED
8 0 6 .8 P P L /W H T STR C 9 C R A N K DISCRETE FUSED
4 1 0 .8
YEL
C 1 0 C O O L A N T TEM PER ATU R E
4 3 2 .8 LT G R N /B LK STR C 1 1 M A N IF O L D A B S O LU T E PRESS
C 1 2
N O T USED
4 1 7
.8 D K BLU
C 1 3 TH R O TTLE P O S ITIO N SENSOR
4 1 6 .8 G R A C 1 4 5 V SENSO R REFERENCE
C l 5 N O T USED
4 4 0 1 .0
ORN
C 1 6 1 2 V B A T T E R Y FUSED
4 5 0 1 .0 B L K /W H T D1 S Y S T E M RETURN
4 5 5
.8 BLK/RED D 2
5 V S Y S T E M RETURN A
D 3 N O T USED
4 2 3 .8 W H T D 4 HEI S P A R K T IM IN G
4 2 4
.8
T A N /B L K D 5 HEI B Y P A S S
4 1 3 .8 T A N D 6 O X Y G E N SENSO R L O W
4 1 2 .8 PPL D 7 O X Y G E N SENSO R HIG H
D 8 N O T USED
D 9 N O T USED
D 1 0 N O T USED
D 1 1
N O T USED
D 1 2 N O T USED
D 1 3
N O T USED
4 6 8 .8 D K GRN D 1 4 IN JE C TO R B DRIVE
D 1 5 N O T USED
4 6 7
.8 D K BLU D 1 6 IN JE C TO R A DRIVE
ELECTRONIC C O N T R O L M O D U LE
( L B 4 - 6 C Y L. TBI)
SECTION F -P A G E 35