Engine Heating/Cooling Wiring Schematics

Fig 1: Engine Cooling Fans (L84/L87)

Courtesy of GENERAL MOTORS COMPANY

Fig 2: Engine Cooling Fans (LM2)

Courtesy of GENERAL MOTORS COMPANY

Fig 3: Heater Coolant Pump (L84/L87)

Courtesy of GENERAL MOTORS COMPANY

Fig 4: Heater Coolant Pump and Radiator Coolant Temperature (LM2)

Courtesy of GENERAL MOTORS COMPANY

Fig 5: Coolant Flow Control Valve (LM2)

Courtesy of GENERAL MOTORS COMPANY

Fig 6: Charge Air Cooler (LM2)

Courtesy of GENERAL MOTORS COMPANY