DTC P004B-84: Turbocharger/Supercharger Boost Control "B" Circuit Range/Performance - Signal below allowable range: Action
WARNING: This page is about a different variant/trim than selected.
- Check secondary turbocharger charge air shut-off valve system for leakage
- Refer to the appropriate system wiring diagram and check the secondary turbocharger charge air shut-off valve circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Check and install a new secondary turbocharger charge air shut-off valve as required
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest