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P1866

Manufacturer-specific fault code

This code has different meanings depending on the manufacturer. Select your vehicle make below to view specific diagnosis and solutions:

Code breakdown

P — System

Powertrain (engine, transmission, fuel & emissions)

1 — Type

Manufacturer-specific

8 — Subsystem

Transmission

Manufacturer-specific meanings

Fiat
Problemi riscontrati nel sistema del gruppo di rinvio
Ford Lincoln Mercury
Transmission Transfer Case System Concern Servicing Required
Volkswagen
Data Bus Powertrain Missing Messages

Related codes

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