P0045 on RAM
Turbocharger/Supercharger Boost Control Solenoid Circuit/Open
P0045 on RAM vehicles indicates turbocharger/supercharger boost control solenoid circuit/open. Au7o has documented this code across 1 RAM model — most commonly on 2500. The PCM detects an open or fault in the control circuit for the turbocharger/supercharger boost control solenoid (which regulates wastegate/boost). Set when the circuit is electrically open. Typical repair costs on RAM range from $450 to $1,900, depending on the specific model and root cause.
Common Causes of P0045
- •Failed boost control solenoid
- •Open or shorted wiring/connector
- •Corroded connector
- •PCM driver fault
P0045 on RAM by Model
RAM 2500(1 issue)
- 6.7L Cummins VGT Turbo Actuator Failure2007-2024
The Holset HE351VE variable-geometry turbocharger uses an electronically controlled actuator (the geartrain and control board that moves the vane sliding ring) that is a well-documented failure point, often before 100k miles. Soot and carbon buildup, rust/corrosion binding the vane arm, worn actuator gears, or a corroded circuit board (from coolant/water intrusion) cause the actuator to stop positioning the vanes correctly. The truck then either spools quickly but chokes at mid/high rpm or spools slowly with a big loss of low-end torque, and typically drops into limp mode. Owners on Cummins forums report repeat failures and note the unit must be scan-tool programmed to the specific turbo after replacement.
Looking for P0045 on a different make?
View P0045 across all makes →Frequently Asked Questions
What does P0045 mean on RAM?▼
P0045 stands for "Turbocharger/Supercharger Boost Control Solenoid Circuit/Open." The PCM detects an open or fault in the control circuit for the turbocharger/supercharger boost control solenoid (which regulates wastegate/boost). Set when the circuit is electrically open. On RAM specifically, this code is documented across 1 model.
What causes P0045 on RAM vehicles?▼
Common causes on RAM: Failed boost control solenoid, Open or shorted wiring/connector, Corroded connector, PCM driver fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0045 on a RAM?▼
Repair costs on RAM range from $450 to $1,900, depending on the specific model and root cause.
Which RAM models have P0045 documented?▼
Au7o has documented P0045 on 1 RAM model: 2500.