Polestar Airbag ECU Crash Data Faults & Repair Guide
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Polestar Airbag ECU Crash Data Faults & Repair Guide
By The Vehicle Check — thevehiclecheck.co.uk
Polestar vehicles are known for their advanced safety systems, but one issue that owners often encounter is airbag ECU crash data faults. When crash data is stored inside the SRS control module, the airbags are disabled until the module is repaired. This can happen after an accident, a hard impact, an airbag deployment, or even due to low voltage issues.
What Is the Polestar Airbag ECU?
The airbag ECU (or SRS module) manages the entire safety restraint system. It monitors airbag readiness, seatbelt pretensioners, impact sensors and crash detection. If the car detects a collision or severe impact, crash data is permanently stored inside the module to prevent the system from being reused without inspection.
What Causes Crash Data Faults?
Crash data is usually triggered by an actual collision, impact event or airbag deployment, but it can also be caused by voltage drops, battery failure, incorrect jump-starting or faulty crash sensors. Even if no visible damage is present, the ECU may still record a crash event and disable the SRS system.
Symptoms of Crash Data in Polestar Airbag ECUs
Common signs include an airbag warning light staying on, “SRS Service Required” messages, crash-event fault codes, an ECU that won’t clear using diagnostics and pretensioner or airbag circuit errors. Once crash data is stored, normal diagnostic tools cannot remove it.
Why Crash Data Can’t Be Cleared With Standard Tools
Crash data is written into the protected memory area of the module. This means it cannot be removed using basic OBD equipment or even dealer-level diagnostics. Only specialist EEPROM-level repair can safely reset the crash memory.
How The Vehicle Check Repairs Polestar Airbag ECUs
At The Vehicle Check, we offer full crash-data removal and repair services for Polestar airbag modules. This includes complete testing, safe removal of crash memory, correction of corrupt data, repair of internal components where required and resetting the module back to factory condition. In most cases, no coding is needed once the repaired module is refitted.
Repairing the original unit is significantly more cost-effective than replacing it, avoids coding complications and provides a fast, effective solution to restore full SRS functionality.
Why You Shouldn’t Ignore the Warning Light
Driving with an airbag warning light means the system may not deploy in an accident, pretensioners may not activate, and the vehicle will likely fail an MOT. It’s essential to have the module repaired as soon as possible to keep the safety system fully operational.