Engine Cooling Fan System - Troubleshooting

• Model Identification
• Description & Operation
  • Electric Cooling Fan Control
    • All Models Except Catera
  • Scan Tool
• Trouble Shooting
  • Preliminary Information
• Electric Cooling Fan Circuit Diagnosis
  • Notes
  • 1.0L & 1.3L Metro & Firefly (CANADIAN)
    • Description
    • Diagnosis
    • Diagnostic Aids
  • 1.8L PRIZM
    • Notes
    • Description
    • Main Cooling Fan Inoperative
    • Auxiliary Cooling Fan Inoperative
    • Cooling Fan Inoperative At Low Speed
    • Cooling Fan Operates Continuously
  • 1.9L SATURN "S" Series
    • Description
    • Cooling Fan Inoperative
    • Cooling Fan Always On
  • 2.2L & 2.4L Cavalier & SUNFIRE
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
    • Diagnostic Aids
  • 2.2L & 3.0L SATURN "L" Series
    • Description
    • Cooling Fan Diagnosis
  • 2.4L, 3.1L & 3.4L ALERO, Grand Am & MALIBU
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
  • 3.0L CATERA
    • Description
    • Cooling Fan System Check
    • Cooling Fan High Speed Inoperative
    • Cooling Fan Low Speed Inoperative
    • Auxiliary Engine Cooling Fan No. 1 Inoperative
    • Auxiliary Engine Cooling Fan No. 2 Inoperative
    • Auxiliary Cooling Fans No. 1 & 2 Inoperative
    • Auxiliary Cooling Fans Inoperative At Low Speed
    • Auxiliary Cooling Fans Inoperative At High Speed
    • Auxiliary Cooling Fan Runs Continuously
  • 3.1L & 3.8L "W" Body (Century & Regal)
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
    • Diagnostic Aids
  • 3.1L "W" Body (Lumina)
    • Description
    • Cooling Fan Functional Check
    • Procedure No. 1
    • Procedure No. 2
    • Procedure No. 3
    • Diagnostic Aids
  • 3.1L & 3.8L "W" Body (Grand PRIX)
    • Notes
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative (3.1L)
    • Cooling Fan Inoperative (3.8L)
    • Cooling Fan Always On (3.1L)
    • Cooling Fan Always On (3.8L)
    • Diagnostic Aids
  • 3.4L & 3.8L "W" Body (Impala & Monte CARLO)
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
  • 3.5L "W" Body (Intrigue)
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
    • Diagnostic Aids
  • 3.5L & 4.0L Aurora
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
  • 3.8L BONNEVILLE & LESABRE
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
    • Diagnostic Aids
  • 3.8L Park Avenue
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
    • Diagnostic Aids
  • 3.8L & 5.7L CAMARO & Firebird
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
    • Diagnostic Aids
  • 4.6L DEVILLE & SEVILLE
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
  • 4.6L ELDORADO
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
  • 5.7L Corvette
    • Description
    • Diagnostic System Check
    • Cooling Fan Inoperative
    • Cooling Fan Always On
• ALERO & Grand Am
• BONNEVILLE & LESABRE
• CAMARO & Firebird
• CATERA
• Cavalier & SUNFIRE
• Century & Regal
• Corvette
• DEVILLE
• ELDORADO
• Grand PRIX
• Impala & Monte CARLO
• Intrigue
• Lumina
• MALIBU
• Metro & Firefly (CANADIAN)
• Park Avenue
• PRIZM
• SATURN
• SEVILLE
• Aurora