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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 767 (Transfer Case - NVG 136-NP4 (1-Speed Automatic)) >> Diagnostic Information & Procedures >> DTC C0374 >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 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)  - Helps determine if the DTC set due to a mechanical or an electrical fault.
  2. 3)  - Tests the integrity of the Motor Control circuit.
  3. 4)  - Determines whether the transfer case clutch pack is holding.
Fig 1: DTC C0374 Diagnosis
G02502160Courtesy of GENERAL MOTORS CORP.
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