Back to 2005 Cadillac DeVille

2005 CADILLAC DEVILLE

4.6L V8 NorthstarFWDAUTOMATICgas
1 active safety recall on this vehicle — view recalls
Repairs0Labor593Torque4903Fluid6DTC855Battery0Maintenance0Recalls1
B0094moderate severityBody

Tail Light Circuit Malfunction

on 2005 Cadillac DeVille 4.6L V8 Northstar · FWD

What this code means

Malfunction in the tail light circuit. One or both tail lights are not operating correctly.

Symptoms

  • Tail light not working
  • Tail light flickering
  • Fuse blowing repeatedly
  • Other drivers flashing headlights at you

Common causes

  • Burnt out tail light bulb
  • Corroded bulb socket
  • Wiring damage in trunk/hatch area
  • Faulty body control module output
  • Ground circuit failure

Diagnostic steps

  1. Check tail light bulbs
  2. Inspect bulb socket for corrosion
  3. Test circuit voltage at socket
  4. Check ground wire
  5. Test BCM output for tail light circuit

Repair notes

Replace bulb and clean socket. Repair ground circuit if corroded.

Other Body codes on this vehicle

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