GMC SYCLONE 1992 Service Manual Supplement page 413

CIRCUIT WIRE
NO. SIZE
474 0.8
416 0.8
439 0.6
461 0.8
465 0.8
450 1.0
440 0.8
155 0.8
452 0.5
COLOR C A V I T Y
A1
A2
A3
A4
GRA
GRA A5
PNK/BLK A6
A7
A8
ORN A9
A10
GRN/WHT A11
BLK/WHT A12
B1
ORN
B2
B3
B4
BLK B5
BLK B6
B7
B8
B9
B10
B11
B12
Figure 1 - ECM Connector C307
ENGINE CONTROL MODULE (SYCLONE/TYPHOON) 25
DESCRIPTION
NOT USED
NOT USED
NOT USED
5V MAP REFERENCE
5V TPS REFERENCE
12V IGNITION (FUSED)
NOT USED
NOT USED
ALDL SERIAL DATA
NOT USED
FUEL PUMP RELAY CONTROL
SYSTEM GROUND
12V BATTERY (FUSED)
NOT USED
NOT USED
NOT USED
MAT AND TPS GROUND
COOLANT TEMP SENSOR AND
MAP GROUND
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
V1619