Code
P0380
Ignition / Glow
Glow plug / heater circuit malfunction
The diesel glow plug circuit has a fault.
Advertisement
Most likely causes
- Failed glow plug
- Blown glow plug fuse
- Glow plug relay fault
- Wiring fault
Symptoms you may notice
- Check engine light
- Hard cold start
- White-grey smoke when cold
Checks to run
- Measure each glow plug resistance
- Check the fuse and relay
- Test the circuit
Tools you may need
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.