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Home >> Chevrolet >> 2002 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 807 (Transfer Case - NVG 136-NP4) >> Diagnostic Information and Procedures >> Transfer Case Will Not Correct Slip >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. 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. Determines if the transfer case shift control module is setting DTCs C0300 or C0305.
  2. 3. Helps determine if the DTC set due to a mechanical or an electrical fault.
  3. 4. Tests the integrity of the Motor Control circuit.
  4. 5. Determines whether the transfer case clutch pack is holding.
Fig 1: Transfer Case Will Not Correct Slip
G01643211Courtesy of GENERAL MOTORS CORP.
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