Relays and Modules - Transfer Case: Technical Service Bulletins

• Customer Interest
  • Drivetrain - 4WD Lamp and System Inoperative
  • 4X4 System - Inoperative/AWD/4WD Lamps ON
  • Drivetrain - 4WD Light ON/4WD Inoperative/DTC C0550
  • Audio System - Speaker Buzzing in 4X4 Mode
  • 4X4 System - Delayed Front Wheel Engagement
• By Symptom
  • Customer Interest
    • Drivetrain - 4WD Lamp and System Inoperative
    • 4X4 System - Inoperative/AWD/4WD Lamps ON
    • Drivetrain - 4WD Light ON/4WD Inoperative/DTC C0550
    • Audio System - Speaker Buzzing in 4X4 Mode
    • 4X4 System - Delayed Front Wheel Engagement
  • False instrument warning light/gauges
    • Drivetrain - 4WD Light ON/4WD Inoperative/DTC C0550
  • Inoperative
    • Drivetrain - 4WD Lamp and System Inoperative
    • 4X4 System - Inoperative/AWD/4WD Lamps ON
    • Drivetrain - 4WD Light ON/4WD Inoperative/DTC C0550
  • Noise
    • Audio System - Speaker Buzzing in 4X4 Mode
• All Technical Service Bulletins
  • Drivetrain - 4WD Lamp and System Inoperative
  • Engine Controls - Lack Of Power/TCC Engaged by 20mph
  • Drivetrain - TCCM Replacement Diagnostics/Guidelines
  • 4X4 System - Inoperative/AWD/4WD Lamps ON
  • Drivetrain - 4WD Light ON/4WD Inoperative/DTC C0550
  • Audio System - Speaker Buzzing in 4X4 Mode
  • 4X4 System - Delayed Front Wheel Engagement