MasterTuning Fault code dictionary (DTC)

P0380 — Glow plug circuit

Severity: Attenzione Can you drive? Sì, no known limitation Produttore: Tutti makes (OBD-II standard)
MeaningThe glow plug supply circuit is not responding as expected. On a Diesel in winter you notice immediately; in summer it can go unnoticed for months.
FamilyPowertrain (P)

Typical symptoms

Duro cold starting
White smoke in the Prima minutes
Rough running until warm
Flashing preheat light

Common causes

One oppure more glow plugs shorted or aperti
Faulty glow plug control unit
Corroded wiring oppure terminals
Faulty preheat relay

What a do

Measure the resistance di each plug: the faulty one shows up in minutes. Replace them as a set, since they are the same age and taking the job apart twice costs more than the plugs — and if they are very old, Rimuovi them with the Motore warm so they do not snap.

Domande Frequenti

What does code P0380 mean?

Glow plug circuit. The glow plug supply circuit is not responding as expected. On a Diesel in winter you notice immediately; in summer it can go unnoticed for months.

Can I keep driving with code P0380 Attivo?

Sì, no known limitation

Common causes — P0380

One oppure more glow plugs shorted or aperti Faulty glow plug control unit Corroded wiring or terminals Faulty preheat relay

How do you fix code P0380?

Measure the resistance di each plug: the faulty one shows up in minutes. Replace them as a set, since they are the same age and taking the job apart twice costs more than the plugs — and if they are very old, Rimuovi them with the Motore warm so they do not snap.

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