Porsche Electrical Diagnostics
Porsche uses VW Group platform electronics (gateway, PCM infotainment, PIWIS diagnostics) with additional performance chassis and driver-assistance systems. Common faults include infotainment (PCM), keyless, ADAS and chassis-control warnings. Some modules are shared with Audi/VW, others are Porsche-specific.
Porsche Control Modules & Electronics
Key modules and electronic systems used across Porsche vehicles. Correct identification of the module is the first step in proper diagnosis.
Gateway
Network gateway (VAG architecture).
PCM — Porsche Communication Management
Infotainment and navigation.
KESSY / Keyless
Keyless entry and start.
PASM — Active Suspension
Electronic damper management.
ADAS / Camera + Radar
Driver-assistance systems.
Common Porsche Electrical Faults
Faults we frequently see on Porsche vehicles. Each links to a detailed, all-makes guide covering symptoms, causes and our diagnostic approach.
Body Control Module (BCM) Faults
Central body electronics controlling locking, lighting, wipers and comfort.
READ GUIDEKey Not Detected
Vehicle doesn't recognise the key — won't start or unlock.
READ GUIDEABS Warning Light
ABS warning on — stability and braking-system fault.
READ GUIDEBattery Warning Light & Vehicle Not Charging
Charging-system fault — battery warning or vehicle not charging.
READ GUIDEParking Assist Unavailable
Parking sensors or park assist not working.
READ GUIDEAirbag / SRS Warning Light
Airbag or SRS warning light on — restraint-system fault.
READ GUIDEElectric Power Steering Fault
EPS warning — steering assistance reduced or unavailable.
READ GUIDEAir Suspension Faults
Air-suspension warning — ride-height or compressor fault.
READ GUIDECAN Bus / Network Communication Faults
Network communication fault affecting multiple modules.
READ GUIDEPorsche Models We Cover
Porsche Electrical Fault?.
Tell us about your Porsche, the symptoms and any warning messages. OBD_PAL diagnoses the complete system before recommending any repair — don't guess, diagnose it properly.