What does code P0381 mean?
Malfunction in glow plug indicator lamp circuit
OBD-II Code
P0381 — Glow Plug Heater Indicator Circuit Malfunction
Malfunction in glow plug indicator lamp circuit
Common symptoms
- Preheat light not working
- hard cold starting
Possible causes
- Failed indicator lamp
- faulty relay
- damaged wiring
Initial recommendation
Inspect indicator lamp, heater relay and fuses.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0381 with your vehicle's actual symptoms for more complete diagnostic guidance.
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