DTC P056E-84: Cold Start Turbocharger/Supercharger Boost Control "A" Performance - Signal below allowable range: Action
WARNING: This page is about a different car, the 2018 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle Conditions to enable DTC Logging Strategy
- Engine running
- Check turbocharger electronic wastegate for mechanical integrity
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Refer to the electrical circuit diagrams and check the turbocharger electronic wastegate circuit for
- Short circuit to ground
- Short circuit to power
- Open circuit
- High resistance
- Check and install a new turbocharger electronic wastegate, only when diagnosed as failed
- Using the manufacturer approved diagnostic system, clear all stored DTCs and retest