P0380 OBD II Trouble Code Glow Plug/Heater Circuit "A" Malfunction

Symptoms of P0380 OBD II Trouble Code

  • Malfunction Indicator Lamp (MIL) illumination
  • Glow plug / Wait To Start indicator stays illuminated longer than normal (may be on solid)
  • Hard to start condition especially in colder weather

Common Causes of P0380 OBD II Trouble Code

  • Fault in glow plug wiring (open, short to ground, etc.)
  • Glow plug faulty
  • Open fuse
  • Faulty glow plug relay
  • Faulty glow plug module