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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1788 (Automatic Transmission - 4L60-E/4L65-E (Diagnosis)) >> Diagnostic Information and Procedures >> DTC P0502 (5.3L): Vehicle Speed Sensor (VSS) Circuit Low Input >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 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. 3. This step tests the VSS assembly circuit.
  2. 4. This step tests the integrity of the VSS assembly.
Fig 1: DTC P0502 - 5.3L (Steps 1-8)
G02131419Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0502 - 5.3L (Steps 9-16)
G02131420Courtesy of GENERAL MOTORS CORP.
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