COOLING FAN – Buick Lucerne CX 2008 – SYSTEM WIRING DIAGRAMS

COOLING FAN

Cooling Fan Wiring Diagram for Buick Lucerne CX 2008

List of elements for Cooling Fan Wiring Diagram for Buick Lucerne CX 2008:

• (or tan)
• 3.8l
• 4.6l
• 87a
• Computer data lines system
• Ect sens sig
• Engine coolant temperature (ect) sensor (3.8l: left rear of engine) (4.6l: right rear of engine)
• Fan 1 fuse 27 30a
• Fan 1 relay
• Fan 2 fuse 26 30a
• Fan 2 relay
• Fan 3 relay
• G104 (right front corner of engine compt)
• Gmlan serial data +
• Gmlan serial data -
• Hi speed rly ctrl
• Hot at all times
• Hot w/ pwr/ trn relay energized
• Left cooling fan (on left rear side of radiator)
• Low ref
• Low speed rly ctrl
• Oxy snsr fuse 6 15a
• Pnk
• Powertrain control module (pcm) (3.8l) engine control module (ecm) (4.6l) (3.8l: left front of engine compt, inside air cleaner housing) (4.6l: left side of engine compt)
• Right cooling fan (on right rear side of radiator)
• Tan
• Underhood fuse block (on right front of engine compt, forward of strut tower)