What Does P006F Mean?
The ECM has detected that the supply voltage to the turbocharger/supercharger boost control "A" solenoid circuit is above the normal operating range. An over-voltage condition in the boost control circuit can cause the solenoid to remain energized or operate erratically, potentially leading to uncontrolled or excessive boost pressure. The driver may notice surging, over-boost conditions, or the vehicle entering limp mode for protection.
Common Causes
35%
Short to battery voltage in the boost control 'A' circuit wiring
25%
Internally shorted boost control solenoid coil
18%
Charging system over-voltage (faulty alternator voltage regulator)
14%
ECM/PCM driver circuit fault holding output high
8%
Aftermarket boost controller or wiring modification creating voltage conflict
Diagnostic Steps
1
Check charging system voltage at battery — should be 13.5-14.8V at idle with accessories off. Over 15V indicates a voltage regulator failure that could affect all circuits.
2
Disconnect the boost control 'A' solenoid and measure voltage on the ECM control wire. With the solenoid commanded off, there should be no voltage on the control side. Voltage present indicates a short to power.
3
Inspect wiring harness routing for chafing against the alternator output wire, battery cable, or other high-current conductors. Heat near the turbo makes insulation brittle and prone to shorting.
4
Measure solenoid coil resistance (typically 10-30 ohms). Very low resistance suggests an internal short drawing excess current.
5
Check for aftermarket boost control devices that may have been wired in parallel with the factory solenoid, creating a voltage conflict the ECM interprets as high.
Estimated Repair Cost
$100 - $650
Parts + labor, varies by vehicle and location
The ECM has detected that the supply voltage to the turbocharger/supercharger boost control "A" solenoid circuit is above the normal operating range. An over-voltage condition in the boost control circuit can cause the solenoid to remain energized or operate erratically, potentially leading to uncon...
The most common cause of P006F (Turbocharger/Supercharger Boost Control "A" Supply Voltage Circuit High) is: Short to battery voltage in the boost control 'A' circuit wiring
Typical repair costs for P006F range from $100 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Potentially serious if the boost control solenoid is stuck energized — this could cause over-boost, which risks engine damage. If you notice surging or unusual power spikes, stop driving and have the vehicle towed. If the vehicle is in limp mode, it is safe to drive slowly to a repair facility. Repair urgently within a few days.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P006F to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Turbocharger / Supercharger System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
