AutoCodes – Hyundai – C1204 Hyundai

C1204 Hyundai Code - Front Right Wheel Speed Sensor Range Or Performance

Quick Answer

The Wheel Speed Sensor is the essential component the Anti-Lock Brake System (ABS) ECU uses to calculate vehicle speed and to determine whether wheel lock occurs. Common causes include Improper installation of wheel speed sensor, Abnormal Rotor and wheel bearing, Faulty Front Right Wheel Speed Sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C1204 Hyundai indicates Front Right Wheel Speed Sensor Range Or Performance.
Common causes: Common causes include Improper installation of wheel speed sensor, Abnormal Rotor and wheel bearing, Faulty Front Right Wheel Speed Sensor.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 19,870

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 21, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1204 Hyundai Description

The Wheel Speed Sensor is the essential component the Anti-Lock Brake System (ABS) ECU uses to calculate vehicle speed and to determine whether wheel lock occurs. For example, a rear-wheel speed signal is used as a reference value, for vehicle speed, in front-wheel drive vehicles, and if a difference between the front and rear wheel speed occurs, then ABS control is performed. The wheel speed sensor generates sinewave signals, based on a magnetic field made by a permanent magnet in the speed sensor when the tone wheel rotates. The ABS ECU monitors the wheel speed sensor signal continuously. This code is set when an abnormal signal due to an air gap problem or an abnormal speed change ratio is detected at the vehicle speed between 10 km/h to 80 km/h(6.2mph to 49.7mph). The warning lamp is turned OFF unless additional faults are detected when the IG KEY has turned ON again, and wheel speed is more than 12 Km/h(7.5mph).

OBDII Code C1204 Hyundai - Front Right Wheel Speed Sensor Range Or Performance - AutoCodes.com — C1204 Hyundai Code - Front Right Wheel Speed Sensor Range Or Performance

What does this mean?

What are the Possible Causes of the DTC C1204 Hyundai?

Improper installation of wheel speed sensor
Abnormal Rotor and wheel bearing
Faulty Front Right Wheel Speed Sensor
Front Right Wheel Speed Sensor harness is open or shorted
Front Right Wheel Speed Sensor circuit poor electrical connection

How to Fix the DTC C1204 Hyundai?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1204 Hyundai code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1204 Hyundai Code

1. What are the common symptoms of OBDII code C1204 in a Hyundai related to the front right wheel speed sensor?

The common symptoms may include ABS warning light illuminated on the dashboard, traction control system malfunction, and possible loss of stability control.

2. What could cause the OBDII code C1204 in a Hyundai indicating Front Right Wheel Speed Sensor Range Or Performance issue?

Possible causes could be a faulty front right wheel speed sensor, damaged wiring or connectors leading to the sensor, or issues with the sensor's signal output.

3. How can I diagnose the OBDII code C1204 in my Hyundai related to the front right wheel speed sensor?

Diagnosis involves checking the front right wheel speed sensor for physical damage, inspecting the wiring and connectors for any issues, and using a diagnostic tool to read the sensor's output values.

4. Can a DIY enthusiast repair the Front Right Wheel Speed Sensor Range Or Performance issue associated with OBDII code C1204 in a Hyundai?

For those with mechanical and electrical knowledge, replacing the front right wheel speed sensor or repairing damaged wiring may be possible as a DIY repair. However, professional help is recommended for accurate diagnosis and proper repair.

5. What are the potential safety implications of ignoring the OBDII code C1204 in a Hyundai related to the front right wheel speed sensor?

Ignoring this code may lead to compromised ABS functionality, traction control issues, and reduced stability control, which can impact the vehicle's overall safety and handling.

6. Are there any specific maintenance tips to prevent the recurrence of OBDII code C1204 in a Hyundai after repair?

Regularly inspecting the wheel speed sensors, ensuring proper wheel alignment, and keeping the sensor wiring protected from damage can help prevent the reoccurrence of this code.

7. Is it necessary to clear the OBDII code C1204 from the Hyundai's system after resolving the Front Right Wheel Speed Sensor Range Or Performance issue?

Yes, it is recommended to clear the code using an OBDII scanner after repairing or replacing the front right wheel speed sensor to reset the system and ensure accurate monitoring of the sensor's performance.

8. Can extreme weather conditions or road debris impact the front right wheel speed sensor and trigger the OBDII code C1204 in a Hyundai?

Yes, harsh weather conditions, as well as road debris like mud, snow, or rocks, can affect the front right wheel speed sensor's performance, leading to the triggering of this OBDII code.

9. How long does it typically take to repair the Front Right Wheel Speed Sensor Range Or Performance issue causing the OBDII code C1204 in a Hyundai?

The repair time can vary depending on the extent of the damage and the expertise of the technician. Generally, it may take a few hours to replace the sensor or repair the wiring.

10. Are there any recalls or technical service bulletins related to the OBDII code C1204 in Hyundai vehicles for the Front Right Wheel Speed Sensor Range Or Performance problem?

It's advisable to check with Hyundai dealerships or online resources for any recalls or technical service bulletins specifically addressing the C1204 code related to the front right wheel speed sensor issue.