Failed glow plug(s). Faulty glow plug control module. Corroded glow plug connector. Wiring fault in glow plug circuit. Blown glow plug relay.

Which cars are affected by P0380?

P0380 is most commonly reported on Ford, Volkswagen, BMW, Vauxhall, Peugeot vehicles, but can appear on any make.

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P0380

Medium severity

Glow Plug/Heater Circuit A Malfunction

A fault has been detected in the glow plug heating circuit. Glow plugs are essential for cold-starting diesel engines — they preheat the combustion chamber to aid ignition.

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Common causes of P0380

1Failed glow plug(s)

2Faulty glow plug control module

3Corroded glow plug connector

+2 more causes

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Commonly affected vehicles

FordVolkswagenBMWVauxhallPeugeot

P0380 can appear on any vehicle — these are the makes where it is most frequently reported.

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Related fault codes

P0171Medium

System Too Lean (Bank 1)

P0300High

Random/Multiple Cylinder Misfire Detected

P0420Medium

Catalyst System Efficiency Below Threshold (Bank 1)

P0172Medium

System Too Rich (Bank 1)