Code result
P0381
Glow Plug/Heater Indicator Circuit Malfunction
High severity
What it means
Electrical fault in the glow plug indicator lamp or relay circuit. The ECU monitors driver feedback to ensure the dashboard indicator can be commanded; an open or shorted circuit triggers this code.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Indicator bulb or LED failed
mediumA plausible cause — test and verify before replacing parts.
Wiring or connector fault
mediumA plausible cause — test and verify before replacing parts.
Related help
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