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2005-2011 AUDI A6

4.2L V8AWDAUTOMATICgas
25 active safety recalls on this vehicle — view recalls
Repairs0Labor593Torque2382Fluid9DTC894Battery0Maintenance0Recalls25
P0615moderate severityPowertrain

Starter Motor Relay Circuit

on 2005-2011 Audi A6 4.2L V8 · AWD

What this code means

Malfunction in the starter motor relay circuit.

Symptoms

  • No start - no crank
  • Starter relay clicking
  • Intermittent no-start

Common causes

  • Faulty starter relay
  • Wiring issue
  • Ignition switch problem
  • Neutral safety switch issue
  • PCM starter control failure

Diagnostic steps

  1. Test starter relay
  2. Check wiring to relay
  3. Test ignition switch
  4. Test neutral safety switch
  5. Check PCM starter output

Repair notes

Replace starter relay. Check ignition switch and neutral safety switch.

Other Powertrain codes on this vehicle

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