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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Engine Controls Self-Diagnostics) >> Diagnostic Tests >> DTC P0502: Vehicle Speed Sensor Low Output >> Test Description
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Test Description

WARNING: This page is about a different car, the 2002 Pontiac Aztek and 2002 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 3

    This step tests the ability of the VSS to produce an AC voltage. This step also verifies the integrity of the wiring to the PCM.

  2. 4

    This step test the VSS circuit for correct resistance.

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