Chevrolet P 1989, Wiring Diagrams

Page: 50 / 143

CIRCUIT
NO.
WIRE
SIZE
COLOR CAVITY
DESCRIPTION
4 6 5 .8 DK GRN/W HT A1 FUEL PUMP RELAY DRIVE
A 2 NOT USED
A 3 NOT USED
4 3 5
.8 GRA
A 4 EGR SOLENOID
4 1 9 .8 BRN/WHT A 5
SYSTEM CHECK LAM P
4 3 9 .8 PNK/BLK A 6
1 2 V IGNITION FUSED
* 4 2 2 .8 TAN/BLK A 7
TORQUE CONVERTER CLUTCH
4 61 .8 ORN A 8 SERIAL D A TA
4 51 .8 W H T/BLK A 9
ASS Y LINE DIAG./LINK
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
.8
BLK/W HT A 1 2 SYSTEM RETURN
4 4 0 .8 ORN
B1
1 2 V BATTERY FUSED
1 2 0 .8
T A N /W H T B2 ELEC FUEL PUMP FUSED FEED
4 5 3 .8
BLK/RED B3 DISTRIBUTOR REF LOW
B4 NOT USED
4 3 0 .8 PPL/WHT B5
DISTRIBUTOR REF HIGH
B6
NOT USED
• 4 8 5 .8 BLK B7 SPARK RETARD CONTROL
59
.8 DK GRN
B8 AIR CONDITION
B9
NOT USED
* 4 3 4
.5
ORN/BLK B 10 PARK/NEUTRAL SW ITCH
B 1 1
NOT USED
B 12 NOT USED
* AUTO TRANS ONLY
• L 0 5 ONLY
ELECTRONIC CONTROL MODULE
L 0 5 , L 1 9 - V 8 TBI
SECTION A - PAGE 42
CIRCUIT
NO.
WIRE
SIZE
COLOR CAVITY DESCRIPTION
C1 NOT USED
4 3 6 .8
BRN
C2 AIR SWITCH SOLENOID
4 4 4
.8
LT GRN/BLK
C3 STEPPER COIL B LOW
4 4 3 .8
LT GRN/W HT
C4 STEPPER COIL B HIGH
4 4 1 .8
LT BLU/W HT
C5 STEPPER COIL A HIGH
4 4 2 .8 LT BLU/BLK C6
STEPPER COIL A LOW
* 4 4 6 .8
LT BLU
C7 A/C CONTROL
•
(4TH GEAR DISCRETE)
C8 NOT USED
8 0 6
.8
PPL/WHT
C9 CRANK DISCRETE FUSED
4 1 0 .8
YEL
C IO COOLANT TEMPERATURE
4 3 2
.8
LT GRN
C 1 1 MANIFOLD ABSOLUTE PRESS.
C 1 2 NOT USED
4 1 7 .8 DK BLU
C 1 3 THROTTLE POSITION SENSOR
4 1 6 .8 GRA C 1 4 5V SENSOR REFERENCE
C 1 5
NOT USED
4 4 0 .8
ORN
C 1 6 12V BATTERY FUSED
551 .8 T A N /W H T D1
SYSTEM GROUND
4 5 5 .8 PPL D2 5V RETURN A
D3
NOT USED
4 2 3 .8 W H T
D4 HEI SPARK TIMING
4 2 4 .8 TAN/BLK
D5 HEI BYPASS
4 1 3 .8
TAN
D6 OXYGEN SENSOR LOW
4 1 2
.8 PPL D7 OXYGEN SENSOR HIGH
D8
NOT USED
D9
NOT USED
D 1 0 NOT USED
D 1 1 NOT USED
D 1 2 NOT USED
D 1 3 NOT USED
4 6 8 .8 LT GRN D 1 4
INJECTOR B DRIVE
D 1 5 NOT USED
4 6 7 .8 LT BLU
D 1 6 INJECTOR A DRIVE
* AU TO TRANS ONLY
• L 0 5 ONLY