LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 946 (Transfer Case (NVG226-NP8)) >> Diagnostic Information and Procedures >> Front Axle Will Not Disengage >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. 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 the electrical function of the front axle actuator. Helps determine between mechanical and electrical malfunctions.
  2. 3.  Tests for proper power and ground at the front axle actuator.
  3. 4.  Tests the operation of the front axle control circuit.
  4. 5.  Tests the electrical function of the front axle actuator control circuit.
  5. 6.  Tests for proper supply voltage to the front axle actuator.
  6. 7.  Tests for open fuse in the front axle feed circuit.
  7. 8.  Tests the front axle control circuit for an open or high resistance.
  8. 9.  Tests the front axle switch circuit for an open or high resistance.
  9. 10.  Helps determine if the front axle actuator has a mechanical malfunction.
  10. 11.  Tests the front axle switch circuit for a short to voltage.
  11. 12.  Inspect the front axle for a mechanical malfunction.
Fig 1: Front Axle Will Not Disengage (Steps 1-5)
G01705688Courtesy of GENERAL MOTORS CORP.
Fig 2: Front Axle Will Not Disengage (Steps 6-17)
G01705689Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals