P0380
Glow Plug/Heater Circuit A
Detailed Description
Volkswagen diesel engine glow plug control circuit fault.
Possible Causes
Glow plug damaged
Glow plug relay failure
Glow plug control module failure
Related wiring issue.
Solutions & Repair Guide
Measure each cylinder glow plug resistance (normal approximately 0.5-1.5 ohms); Check glow plug relay; Check control module power and ground.
Disclaimer: The information above is for reference only and does not constitute professional repair advice.
Actual causes may vary depending on vehicle make, model, year, and configuration. Always consult a qualified technician for accurate diagnosis.