P06FCGlow Plug Control Module 2 to PCM Communication Circuit
A circuit fault is detected on the communication line between glow plug control module 1 and the PCM. The PCM cannot read plug status and cannot command preheat.
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- 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
Possible Causes
The components or conditions that trigger this code
- 1Open or short on communication wire Gateway module routing CAN messages incorrectly CAN terminating resistor (120 Ω) drifted out of spec
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 0.5-2 hours. Estimated cost: €80-€
- 2DIY possible
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Varies by diagnosis
* Diagnosis only: $50–$150
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