P006E medium Severity

P006E: Turbocharger/Supercharger Boost Control “A” Supply Voltage Circuit Low

Illuminated check engine light, reduced power, possible limp mode due to low boost pressure control voltage

Overview

P006E OBD‑II indicates a low voltage condition in the turbocharger/supercharger boost control A supply circuit affecting boost control solenoid operation and engine performance

Common Symptoms

  • Check Engine Light illuminated
  • Reduced engine power and poor throttle response
  • Difficulty accelerating or climbing hills
  • Intermittent drivability issues
  • Possible limp mode activation

Most Common Causes

Faulty boost control solenoid (stuck, damaged) high

Circuit supplies voltage to the boost control device; solenoid failure is a primary fault point

Damaged or corroded wiring/connectors in boost control circuit high

Heat and environmental exposure can degrade connections causing low voltage

Low system supply voltage (battery/charging issue) medium

Weak battery or poor alternator output can reduce available voltage

Faulty engine control module (ECM/PCM) low

Rare; only after wiring and components are tested and verified

Obstruction or malfunction within turbocharger/supercharger medium

Mechanical issues can indirectly affect circuit load or signal

Diagnostic Steps

  1. Retrieve DTC with an OBD‑II scanner and confirm code P006E
    Expected: P006E present and consistent
    Interpretation: Confirms low voltage detection in boost control circuit
  2. Visually inspect wiring harness and connectors for corrosion, damage, loose connections
    Expected: Visual signs of wear, corrosion, heat damage
    Interpretation: Damaged wiring likely causing low supply voltage
  3. Measure supply voltage at boost control solenoid connector with a multimeter
    Expected: Voltage near battery voltage with ignition on
    Interpretation: Low measured voltage indicates supply fault
  4. Test boost control solenoid resistance and operation
    Expected: Resistance within OEM spec, actuator moves if tested
    Interpretation: Out‑of‑spec or non‑moving solenoid requires replacement
  5. Check battery and charging system voltage
    Expected: Battery ~12.6V at rest, alternator >13.5V running
    Interpretation: Poor supply points to electrical system issue

Repair Solutions

Repair or replace damaged wiring/connectors in boost control circuit medium
Estimated Cost: $50 - $250

Labor varies based on location of harness

Replace faulty boost control solenoid or actuator medium
Estimated Cost: $150 - $600

Part cost and labor depending on vehicle

Repair or replace battery/charging components if low supply easy
Estimated Cost: $100 - $400

Includes alternator or battery replacement if needed

ECM/PCM diagnostic and replacement if confirmed defective hard
Estimated Cost: $500 - $1500

Rare but possible after excluding other causes

Common Misdiagnoses

Avoid these common diagnostic mistakes:

  • Misinterpreting P006E as simply a turbo failure without checking electrical circuit

Frequently Asked Questions

What does the P006E code mean?

Turbocharger/Supercharger Boost Control “A” Supply Voltage Circuit Low is the standard definition for P006E. This diagnostic code is triggered when the ECU detects a problem in the Air Intake.

Should I stop driving if I have P006E?

The P006E code is considered medium severity. Illuminated check engine light, reduced power, possible limp mode due to low boost pressure control voltage

What are the symptoms of P006E?

Common symptoms include: Check Engine Light illuminated, Reduced engine power and poor throttle response, Difficulty accelerating or climbing hills. You might also notice the Check Engine Light is on.

Potential causes for OBDII code P006E

This code is frequently triggered by: Faulty boost control solenoid (stuck, damaged), Damaged or corroded wiring/connectors in boost control circuit, Low system supply voltage (battery/charging issue).

What is the price difference for fixing P006E?

Expect to pay around $250 if the issue is a Repair or replace damaged wiring/connectors in boost control circuit, but up to $1500 if the ECM/PCM diagnostic and replacement if confirmed defective needs replacement.

What cars are affected by the P006E code?

This is a universal code. You might see P006E on Ford, Chevrolet, Toyota, Honda, Nissan, or any other OBD-II vehicle.

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