C0603

Active Air Dam Control Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Decreased fuel efficiency
Unstable operation of the active air deflector

Causes

Short circuit to positive in the control circuit
Active air deflector solenoid malfunction
Wiring harness damage
Control unit malfunction

How to Fix

Check the integrity of the wiring harness
Check solenoid resistance
Check control circuit voltage
Replace faulty components

Related codes

C0601 C0602 C0604