Source-backed diagnostic reference

P2308 EV diagnostic code

Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

AUDI: Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue Source
GENERIC: Ignition Coil C Secondary Circuit Source
GENERIC: Ignition Coil C Secondary Circuit Source

Search and canonical URL

Capitalization, underscores, hyphens, colons and spaces are normalized to this canonical code identity so alternate scan-tool formats do not create duplicate pages.