Code result
P004E
Turbocharger/Supercharger Boost Control A Circuit Intermittent/Erratic
Moderate severity
What it means
Intermittent dropouts or noise on boost control A circuit. Loose connector, partial wiring break, or solenoid degrading.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Connector loose or corroded
highOne of the most commonly reported causes for this code — check this first.
Wiring chafed inside loom
mediumA plausible cause — test and verify before replacing parts.
Connector with intermittent contact under vibration
lowLess common, but worth ruling out after the more likely causes.
Related help
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