Decoding P0121 on Your 2022 Volvo XC60
A P0121 on your 2022 Volvo XC60 indicates the ECM has detected an irregular throttle position sensor signal pattern. The voltage is within specs but doesn't correlate with your pedal position—our detective has flagged the throttle body for a closer look.
The 2022 XC60 uses Volvo's SPA platform with the 2.0L Drive-E four-cylinder: B5 (turbo, 247 hp), B6 (turbo + supercharger, 295 hp), or T8 Recharge PHEV (turbo + supercharger + electric). All use direct injection. The XC60 shares its powertrain architecture with the XC90 but in a more compact package.
Symptoms
- Check engine light on
- Hesitation during acceleration
- Idle roughness noticeable in the quiet cabin
- Boost delivery feels inconsistent
- T8: hybrid transitions may feel rough
Causes Ranked
- Carbon buildup on throttle body – DI engine carbon deposits from PCV vapors. Likelihood: 45%
- Throttle body assembly issue – Internal TPS or motor wear. Likelihood: 25%
- ECM software update – Volvo VIDA calibration refinements. Likelihood: 15%
- Wiring or connector issue – Heat degradation. Likelihood: 10%
- Boost system issue – Supercharger clutch or wastegate (B6/T8). Likelihood: 5%
Repair Costs
- Throttle body cleaning: $120–$200 (shop) / $10–$25 (DIY)
- Throttle body replacement: $400–$700 parts and labor
- VIDA software update: $100–$250 (dealer)
- Wiring repair: $100–$300
Warranty Check
Your 2022 XC60 may still be within Volvo's 4-year/50,000-mile warranty depending on mileage. If covered, the dealer handles it at no cost via VIDA. If out of warranty, a VIDA-equipped Volvo specialist shop offers more affordable service than the dealer. After throttle body work, a VIDA throttle body adaptation reset is recommended.
How AutoDetective AI Can Help
AutoDetective's AI differentiates between the XC60's B5, B6, and T8 powertrains for an engine-specific diagnosis. Upload your scan data for free.