CUPRA Electrical Diagnostics
CUPRA, the performance brand from SEAT, runs on VW Group MQB electronics with the same BCM, gateway, KESSY and MIB architecture. Performance models carry additional ADAS and infotainment features, so the same Group-wide fault patterns apply — SOS/eCall, keyless, body and driver-assistance faults.
CUPRA Control Modules & Electronics
Key modules and electronic systems used across CUPRA vehicles. Correct identification of the module is the first step in proper diagnosis.
BCM
Body Control Module.
Gateway
Data-bus gateway.
KESSY
Keyless entry and start.
MIB Infotainment
Head unit.
ADAS / Radar + Camera
Front radar and camera driver assistance.
Common CUPRA Electrical Faults
Faults we frequently see on CUPRA 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 GUIDECUPRA Models We Cover
CUPRA Electrical Fault?.
Tell us about your CUPRA, the symptoms and any warning messages. OBD_PAL diagnoses the complete system before recommending any repair — don't guess, diagnose it properly.