DTC code
P067A
Cylinder 4 Glow Plug Control Circuit Low
Technical guide
reference — not individually verifiedSymptoms
- Glow plug warning light on (often orange coil symbol)
- Hard cold start or no start in cold weather
- White smoke from exhaust during warm-up
Probable causes
- high: Control line shorted to ground
- low: Connector pins corroded - high contact resistance
- low: Harness chafing through insulation
Diagnostic steps
Check the components involved: glow plug cyl 4. Verify wiring and connectors before replacing any part. Job difficulty: easy. Typical European range — 60-250 EUR, 0.4-1.4 h. Reference values only.
Cross-checked technical synthesis (QA). It does not replace the manufacturer's procedure.
AI here is a librarian: this page shows only what mechanics confirmed, or says “unknown”. It never suggests a diagnosis — MECCANIC interprets the code, never your car.
0 confirmed cases on P067A
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