Code result
P052F
Glow Plug Control Module 1 System Voltage
Moderate severity
What it means
Glow Plug Control Module 1 System Voltage: the control module has detected this fault condition. This affects diesel cold-start preheating.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Supply voltage low
highOne of the most commonly reported causes for this code — check this first.
Supply relay contact high resistance
mediumA plausible cause — test and verify before replacing parts.
Related help
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