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2002 VOLVO S80
2.9L I6•FWD•AUTOMATIC•gas•B6294S
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor501Torque3163Fluid7DTC859Battery1Maintenance0Recalls5
P0503moderate severityPowertrain

Vehicle Speed Sensor A Intermittent/Erratic/High

on 2002 Volvo S80 2.9L I6 · FWD

What this code means

Intermittent or erratic VSS signal.

Symptoms

  • Erratic speedometer
  • Random shifts
  • Intermittent cruise issues

Common causes

  • Loose connector
  • Damaged wiring
  • Worn tone ring
  • Sensor going bad

Diagnostic steps

  1. Wiggle test connector
  2. Monitor signal stability
  3. Inspect tone ring

Repair notes

Repair connector or replace sensor.

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