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2000 AUDI A4
2.8L V6•AWD•AUTOMATIC•gas•ACK
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor506Torque3224Fluid9DTC900Battery1Maintenance0Recalls5
C0222moderate severityChassis

EPS Control Module Voltage High

on 2000 Audi A4 2.8L V6 · AWD

What this code means

The EPS module supply voltage exceeds the maximum safe operating threshold.

Symptoms

  • EPS warning light
  • EPS assist may shut down
  • Warning for electrical system

Common causes

  • Alternator overcharging
  • Voltage regulator failure
  • Jump-starting voltage spike
  • Aftermarket charger connected while running

Diagnostic steps

  1. Test charging system voltage (should be 13.5-14.7V)
  2. Check alternator voltage regulator
  3. Inspect for aftermarket electrical accessories
  4. Monitor system voltage under various loads

Repair notes

Repair overcharging alternator. Replace voltage regulator.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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