TorqueMech Beta
TorqueMech OBD Code Guide

P0502 - Vehicle Speed Sensor Low Input

Vehicle speed sensor signal is too low or missing.

Code first. Confirm symptoms and checks before pricing parts.

Read code pattern Check likely system Estimate after confirmation

Code Overview

Vehicle speed sensor signal is too low or missing.

Common Causes

  • Failed speed sensor
  • Short to ground
  • Tone ring damage
  • Wiring issue

Diagnostic Steps

  1. Watch speed PID during a road test
  2. Inspect the sensor and tone ring area
  3. Check the signal circuit for damage

Likely Repairs & Cost Guides

Confirm the repair path before pricing parts.

Continue Estimate

Next Steps

Move from code to checks, then estimate.