COOLING FAN – Pontiac Bonneville LE 1991 – SYSTEM WIRING DIAGRAMS

COOLING FAN

Cooling Fan Wiring Diagram for Pontiac Bonneville LE 1991

List of elements for Cooling Fan Wiring Diagram for Pontiac Bonneville LE 1991:

• (behind right side of i/p) powertrain control module
• A/c coolant fan pressure switch (right rear of radiator)
• A/c on in
• Air conditioning system
• Auxiliary coolant fan motor
• Auxiliary coolant fan relay (left side of engine compt)
• B10
• Coolant fan motor
• Coolant fan resistor (front of engine compt)
• Data link connector
• Diagnostic test
• Engine coolant temperature sensor (left side
• Fuse 40a
• Fuse 5a
• G100 (left front of engine compt)
• G201 (right side of i/p)
• Hi speed and aux relay ctrl
• High speed coolant fan relay (left side of engine compt)
• Hot at all times
• Hot in run
• I/p fuse block
• Left underhood fuse block
• Lo speed relay ctrl
• Low speed coolant fan relay (left side of engine compt)
• Nca
• Of engine)
• Red
• Sensor gnd
• Temp sensor in
• Vehicle speed sensor
• Vss gnd
• Vss in
• W/ heavy duty cooling system