LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 624 (Transfer Case - NVG 261-NP2 (2-Speed Manual)) >> Diagnostic Information & Procedure >> 4WD Indicator Inoperative >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2)  - Tests for an intermittent condition.
  2. 3)  - Determines whether the failure is the result of a faulty front axle circuit or the instrument cluster.
  3. 4)  - Tests for proper signal voltage to the PCM.
  4. 5)  - Tests for proper ignition 1 voltage to the instrument cluster.
    5. Fig 1: 4WD Indicator Inoperative Diagnosis
    G01668791Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals