Section 998 (Transfer Case - NVG 263-NP1)
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Transfer Case
- Diagnostic System Check - Transfer Case
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B0790: Transfer Case Neutral Indicator Circuit
- DTC B2725: ATC Mode Switch Circuit Malfunction
- DTC C0306: Motor A or B Circuit
- DTC C0327: Encoder Circuit Malfunction
- DTC C0359: Four Wheel Drive Low Range (4LO) Discrete Output Circuit
- DTC C0379: Front Axle System
- DTC C0550: ECU Malfunction
- Symptoms - Transfer Case
- Front Axle Will Not Engage
- Front Axle Will Not Disengage
- Transfer Case Shift Control Switch Inoperative
- Service Indicator Always On
- Service Indicator Inoperative
- Transfer Case Shift Control Switch Indicator Always On - Two or More
- Transfer Case Shift Control Switch Indicator Flashes, then Returns to Previous Mode
- Transfer Case Shift Control Switch Indicators Flash Continuously 15 Seconds or More
- Transfer Case Shift Control Switch Indicator Inoperative - One or More
- Transfer Case Will Not Shift
- Transfer Case Popping Noise
- Transfer Case Whine or Rumble Noise
- Transfer Case Growl or Grinding Noise
- Transfer Case Clunk in 2HI Only
- Transfer Case Clunk in 4HI
- Transfer Case Clunk in 4LO
- Transfer Case Shudder or Binding
- Transfer Case Jumps Out of Gear
- Transfer Case Leak Diagnosis
- Repair Instructions
- Transfer Case Shield Replacement
- Transfer Case Fluid Replacement
- Transfer Case Encoder Motor Replacement
- Encoder Motor Sensor Replacement
- Transfer Case Speed Sensor Replacement
- Transfer Case Shift Control Module Replacement
- Transfer Case Control Module Reprogramming
- Transfer Case Shift Control Switch Replacement
- Transfer Case Output Shaft Seal Replacement - Front
- Transfer Case Output Shaft Seal Replacement - Rear
- Transfer Case Assembly Replacement
- Transfer Case Input Shaft Seal Replacement
- Transfer Case Adapter Replacement
- Description and Operation
- Special Tools and Equipment