Transfer Case - NVG 233-NP1 (Two Speed Selectable) for Chevrolet Blazer - 2WD 1998

All Component Locator

• Transfer Case Control Component Views
• Transfer Case Control Components

All Description and Operation

• Data Memory Retention Check
• Encoder Signal Check
• Encoder Switch Monitor Check
• Mode Shifts
• Motor and Relay Voltage Checks
• Motor/Encoder Circuit Operation
• RAM/ROM Check
• Range Shifts
• Transfer Case Control Module Description
• Transfer Case Description
• Transfer Case System Description

All Special Tools and Equipment

• Special Tools

All Visual Identification

• Transfer Case Control Connector End Views

Diagnostic Procedures

• Diagnostic Starting Point - Transfer Case
• Diagnostic System Check
• Symptoms - Transfer Case
• Transfer Case Shift Control Switch Indicator Always On - Two or More
• Transfer Case Shift Control Switch Indicator Flashes and Returns to Original Mode
• Transfer Case Shift Control Switch Indicator Inoperative - One or More
• Transfer Case Shift Control Switch Inoperative or 4 Low Indicator Stuck On
• Transfer Case Will Not Complete a Mode or Range Shift

Diagnostic Trouble Codes

• Diagnostic Trouble Code (DTC) Clearing
• Diagnostic Trouble Code (DTC) Displaying
• Diagnostic Trouble Code (DTC) List
• DTC 001
• DTC 002
• DTC 003
• DTC 004

Electrical/Electronic Schematic Diagrams

• Transfer Case Control Schematics

Mechanical Specifications

• Fastener Tightening Specifications

Other Specifications

• Lubrication Specifications

Removal, Installation, and Replacement

• Oil Replacement
• Shield Replacement
• Transfer Case Replacement
• Transfer Case Shift Control Module Replacement
• Transfer Case Vent Hose Replacement