Answer
Apr 12, 2025 - 10:34 AM
The P1573 code typically relates to a Throttle Control or Torque Limitation fault, and it’s often what triggers limp mode in many Volvos, including the 2008 S80.
Common culprits include:
- Electronic throttle body issues
- Faulty throttle position sensor
- Dirty or sticking throttle plate
- Wiring/connectivity issues in the throttle control circuit
Since limp mode can be triggered by multiple systems to protect the engine, the best way to fix the problem without replacing parts blindly is to follow the diagnostic flowcharts in the repair manual. These charts will walk you through how to test each component tied to the fault code, helping you pinpoint the exact issue.
Once you’ve identified the faulty part, the manual also provides the correct replacement procedure, including torque specs, safety steps, and re-learn procedures (if needed). It’s the best way to save time and money — and make sure the problem is fixed the right way, the first time.
