Sa-16-dtc-p004607 Apr 2026

: Inspect the dedicated engine compartment fuses (commonly FE8 or FE9 ) to see if the actuator has shorted out.

: The truck may be unable to initiate a parked Diesel Particulate Filter (DPF) regeneration, or it may enter a continuous, never-ending regen cycle.

: The primary fault code for Turbocharger Boost Control Circuit Range/Performance . sa-16-dtc-p004607

: Remove the VGT actuator and manually try to move the turbo's sector shaft. If it does not move freely, the turbo itself is likely seized and needs replacement.

: The engine will likely lose significant power as the ECU limits torque to protect the engine. : Inspect the dedicated engine compartment fuses (commonly

: The actuator is physically blocked from moving the turbo vanes, often due to heavy soot accumulation or internal mechanical binding.

The code is a specific diagnostic fault typically found in Volvo and Mack trucks (specifically those with D11, D13, or MP8 engines) indicating a Variable Geometry Turbocharger (VGT) mechanical fault . Code Breakdown : Remove the VGT actuator and manually try

: In some cases, this code is triggered because coolant or water has leaked into the electrical side of the turbo actuator, often signaled by a blown fuse (FE8 or FE9). Recommended Troubleshooting Steps