C0604
Active Air Dam Control Circuit Performance
C0604 is an OBD-II diagnostic trouble code meaning: Active Air Dam Control Circuit Performance. Common causes: open or short circuit in wiring harness, malfunction of the solenoid valve (solenoid). Estimated repair cost: $56–167.
Symptoms
- Increased fuel consumption
- Unstable operation of the active air deflector
- Check Engine Light Illuminates
Causes
- Open or short circuit in wiring harness
- Malfunction of the solenoid valve (solenoid)
- Problems with the control unit
- Mechanical damage to the deflector
How to Fix
- Check the wiring harness for breaks and short circuits
- Check the operation of the solenoid valve
- Check the mechanical condition of the deflector
- If necessary, replace faulty components
Related codes
Error C0604 by Vehicle Brand
FAQ
What does the C0604 code mean?
C0604 is an OBD-II diagnostic trouble code that indicates: Active Air Dam Control Circuit Performance
What causes a C0604 error code?
The most common causes of C0604 include: Open or short circuit in wiring harness; Malfunction of the solenoid valve (solenoid); Problems with the control unit; Mechanical damage to the deflector.
How do I fix a C0604 diagnostic trouble code?
To fix C0604: Check the wiring harness for breaks and short circuits. Check the operation of the solenoid valve. Check the mechanical condition of the deflector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0604?
Limited driving only, diagnose soon
How much does it cost to fix C0604?
The estimated repair cost for C0604 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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