P0077Medium SeverityEngine

Intake Valve Control Solenoid Circuit High (Bank 1)

What This Means

The intake valve control solenoid on bank 1 is reading high voltage. A short to power is affecting the variable valve timing system.

Common Symptoms

VVT system fault
Rough idle
Performance issues
Check engine light on

Common Causes

Short to power
Failed solenoid
Wiring damage
Connector issue
PCM output high

Estimated Repair Cost

$100 – $500

Parts and labor (varies by vehicle and location)

Difficulty:Moderate

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For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.