Back to 2009 Audi A8

2009 AUDI A8

4.2L V8AWDAUTOMATICgas
1 active safety recall on this vehicle — view recalls
Repairs0Labor499Torque2473Fluid9DTC866Battery0Maintenance0Recalls1
P0615moderate severityPowertrain

Starter Motor Relay Circuit

on 2009 Audi A8 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

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →