Hyundai Error Code C1604: How to Fix It

Q: Can I drive with Hyundai error code C1604?

You can drive short distances at low speeds to reach a repair facility, but avoid aggressive driving or emergency braking situations. The ABS system may not function properly, increasing stopping distances.

Q: How much does it cost to fix Hyundai C1604 error?

Repair costs range from $200-400 for wiring issues to $800-1500 for ABS module replacement, including parts and labor. Diagnostic fees typically add $100-150.

Q: What causes Hyundai C1604 ABS module fault?

Common causes include water damage to the ABS module, electrical short circuits, corroded wiring connections, low battery voltage, or internal module component failure due to age or heat exposure.

Q: Will C1604 cause my Hyundai to fail inspection?

Yes, in most states an active ABS fault code like C1604 will cause your vehicle to fail safety inspection. The ABS system must be fully functional to pass inspection requirements.

Q: Can a bad wheel speed sensor cause C1604?

While wheel speed sensor issues typically generate different codes, multiple sensor failures or wiring problems can sometimes trigger C1604 as a secondary fault. Always check for additional codes.

Abstract

Hyundai error code C1604 indicates an ECU hardware error specifically related to the Anti-lock Braking System (ABS) module. This serious fault can compromise your vehicle's braking performance and safety systems. While some diagnostic steps can be performed at home, this error typically requires professional attention due to the critical nature of brake system components.