Cooling fan circuit for Chevrolet Uplander I (2004-2008)
Cooling fan circuit
1049 459 473 COMPUTER DATA LINES SYSTEM
15 53 54 15 33 50 CLASS 2 DATA RLY CTRL RLY CTRL
3.5L
3.9L 3.5L
35 55 30 55 LOW REF ECT SENSOR
A/C CLTCH FUSE 6
A/C CLTCH RELAY
A/C COMPRESSOR CLUTCH
BLK WIRE
DIODE 3
DK BLU WIRE
DK GRN WIRE
DK GRN/WHT WIRE
ENGINE CONTROLS SYSTEM
FAN 1 FUSE 29
FAN 1 RELAY
FAN 2 FUSE 33
FAN 2 RELAY
FAN 3 RELAY
GRN WIRE
GRY WIRE
HOT AT ALL TIMES
HOT W/ IGN MAIN RELAY ENERGIZED
LEFT COOLING FAN (BEHIND LEFT SIDE OF RADIATOR)
LT BLU WIRE
ORG/BLK WIRE
POWERTRAIN CONTROL MODULE (PCM) (3.5L) ENGINE CONTROL MODULE (ECM) (3.9L)
RED WIRE
RIGHT COOLING FAN (BEHIND RIGHT SIDE OF RADIATOR)
RLY CTRL
UNDERHOOD FUSE BLOCK (IN UNDERHOOD COMPT, ABOVE RIGHT FRONT WHEEL WELL)
WHT WIRE
YEL WIRE