Turbocharger Boost Control Solenoid Control Circuit Low Voltage
Table of contents
P0047 GMC Possible Causes
- Faulty Turbocharger Control Solenoid Valve
- Turbocharger Control Solenoid Valve harness is open or shorted
- Turbocharger Control Solenoid Valve circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How do I fix code P0047 GMC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P0047 GMC code
The cost of diagnosing the P0047 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0047 GMC Description
The positions of the turbocharger vanes are controlled by the Engine Control Module (ECM). The ECM utilizes a turbocharger vane control solenoid to control the turbocharger vanes and a turbocharger vane position sensor to verify the position of the vane. The ECM will vary the boost depending upon the load requirements of the engine. The vane control solenoid has a high control circuit and a low control circuit. The ECM uses a pulse width modulation on both circuits to control the solenoid. The Diagnostic Trouble Code (DTC) will set if the ECM detects that the commanded state of the driver and the actual state of the control circuits do NOT match or if the condition exists for equal to or greater than 4 seconds.