P2C77

Active Grille Air Shutter D Control Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine Light Is On
Deterioration of aerodynamics at high speeds
Increased fuel consumption
Unstable operation of the cooling system
Noise when the damper operates

Causes

Open or short circuit in control circuit
Damper motor malfunction
Jamming of the damper mechanism
Connector or wiring problems
Engine control unit malfunction

How to Fix

Check the integrity of the control circuit
Inspect the damper mechanism for jamming
Check the condition of connectors and wiring
Test the damper motor
If necessary, replace faulty components

Related codes

P2C76 P2C78 P2C79