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Home >> Cadillac >> 2002 >> Seville SLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Self-Diagnostics - 4.6L >> Diagnostic Tests >> DTC P0502: Vehicle Speed Sensor Low Output >> Test Description

Test Description

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

  1. 2

    This step tests for DTCs and for a vehicle speed signal. It is important to record Freeze Frame and Failure Record information before proceeding further.
  2. 5

    This step tests for a resistance value greater than 1,950 ohms which would indicate an open in the high signal circuit, the low signal circuit or the VSS.