00816 on SEAT: How to Diagnose & Fix
Power Steering Sensor (G250): Faulty
1 SEAT model · 1 documented issue · 1 critical · $300-$900 repair
00816 on SEAT by model: symptoms, diagnosis and fix
The Mk4 (6J) Ibiza's electric power steering rack/pump (TRW unit, e.g. 6R0423156B) is a documented failure point. Owners report the power-steering warning lamp illuminating with sudden loss of assistance, sometimes intermittently, traced to a loss of CAN-bus communication with the steering control module or a failed steering-angle sensor. Common stored faults include 01309 (control module no communication/no signal) and 00816 (steering angle sensor). The condition can come and go before failing permanently, and heavy unassisted steering is a safety concern.
Common Symptoms
- Power steering warning light
- Heavy / no steering assistance
- Intermittent loss of assistance
- Steering feels notchy
How to Fix
Diagnose with VCDS for communication/angle-sensor faults; check power and ground at the pump connector and CAN-bus wiring. Recalibrate/replace the steering-angle sensor if faulty; many cases are resolved only by replacing or reconditioning the TRW power-steering pump/control module.
Sources for this issue (2)
00816 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does 00816 mean on a SEAT?
00816 stands for "Power Steering Sensor (G250): Faulty." This is a VAG (Volkswagen/Audi/Skoda/SEAT) manufacturer-specific fault code stored by the power steering control module, indicating a fault with the Power Steering Sensor (G250). The module has detected an electrical problem with the sensor signal (short to ground, open/short to positive, or a faulty/implausible sensor), which can cause stiff/heavy steering, power steering operating in emergency (limp) mode, and an illuminated warning light. It very commonly appears after a power steering pump or rack replacement when an incompatible or uncoded part is fitted, because steering racks/pumps from different suppliers use non-interchangeable internal components. On SEAT it is documented across 1 model: Ibiza.
What are the most common causes of 00816?
The most common causes of 00816 are: Faulty or internally failed power steering sensor (G250) within the pump/rack assembly, Replacement power steering pump or rack that is incompatible with the original part or from a different supplier, Uncoded or unadapted replacement pump/control module not matched to the vehicle, Damaged, corroded, or loose wiring and connectors at the power steering sensor, Short to ground or short to positive in the sensor circuit, Failing power steering control module. The specific cause varies by vehicle.
How much does it cost to fix 00816 on a SEAT?
Published repair estimates on SEAT range from $300 to $900 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for 00816 on a different make?
View 00816 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.