AutoCodes – Hyundai – C1203 Hyundai

C1203 Hyundai Code - Front Right Wheel Speed Sensor Open Or Short

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: C1203 Hyundai indicates Front Right Wheel Speed Sensor Open Or Short.
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 15,332

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 C1203 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 circuit continuously. A direct current is supplied in the wheel-speed sensor by a power source in the input amplifier of the control unit. If the WSS circuit is broken, that case, a fault is detected by detecting an abnormal input current. HECU cuts off the voltage supply to the wheel sensor channel which had a fault and prevents the vehicle's damage due to the super-heated harness. If one or more defects have detected, the Diagnostic Trouble Code (DTC) code of defected wheel will be stored. Mutual short between sensors is detected by executing self-diagnosis successively at the corresponding wheel when ignition ON. The warning lamp is turned OFF unless additional faults are detected when the IG KEY has turned ON again.

OBDII Code C1203 Hyundai - Front Right Wheel Speed Sensor Open Or Short - AutoCodes.com — C1203 Hyundai Code - Front Right Wheel Speed Sensor Open Or Short

What does this mean?

What are the Possible Causes of the DTC C1203 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 C1203 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 C1203 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 C1203 Hyundai Code

1. What are the common symptoms of OBDII code C1203 in a Hyundai related to the Front Right Wheel Speed Sensor Open Or Short?

- Common symptoms include the ABS warning light illuminating on the dashboard, traction control issues, and potential loss of stability control.

2. What are the possible causes of OBDII code C1203 in a Hyundai indicating a Front Right Wheel Speed Sensor Open Or Short?

- Possible causes can include a damaged wheel speed sensor, faulty wiring or connections, corrosion in the sensor circuit, or a malfunctioning ABS module.

3. How can I diagnose the Front Right Wheel Speed Sensor Open Or Short issue in my Hyundai when OBDII code C1203 is triggered?

- Diagnosis typically involves visually inspecting the wheel speed sensor and its wiring, testing the sensor for proper resistance, and using a scan tool to monitor the sensor's data while the vehicle is in motion.

4. Is it safe to continue driving my Hyundai if OBDII code C1203 for Front Right Wheel Speed Sensor Open Or Short is present?

- It is not recommended to drive the vehicle with this issue as it can affect the performance of the ABS and stability control systems, potentially compromising the vehicle's safety.

5. Can I repair the Front Right Wheel Speed Sensor Open Or Short issue in my Hyundai myself?

- Depending on your mechanical skills and access to tools, you may be able to replace the wheel speed sensor or repair any damaged wiring yourself. However, diagnosing and resolving electrical issues can be complex, so professional assistance is advisable.

6. How much does it typically cost to repair OBDII code C1203 related to the Front Right Wheel Speed Sensor Open Or Short in a Hyundai?

- The cost of repair can vary depending on the extent of the issue and whether the sensor or wiring needs to be replaced. On average, the repair cost can range from $100 to $300 for parts and labor.

7. Will resetting the OBDII code C1203 for Front Right Wheel Speed Sensor Open Or Short make the issue go away?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying problem causing the code. It is important to diagnose and repair the issue to prevent further complications.

8. Can a Front Right Wheel Speed Sensor Open Or Short issue in a Hyundai trigger other warning lights or codes?

- Yes, a faulty wheel speed sensor can trigger related ABS or traction control warning lights, as well as additional OBDII codes related to the sensor's performance.

9. How long does it typically take to repair the Front Right Wheel Speed Sensor Open Or Short issue in a Hyundai?

- The repair time can vary depending on the exact cause of the issue and the availability of parts. In general, a skilled mechanic can complete the repair within a few hours.

10. Are there any preventive maintenance steps I can take to avoid experiencing OBDII code C1203 related to the Front Right Wheel Speed Sensor Open Or Short in my Hyundai?

- Regularly inspecting the wheel speed sensors, keeping them free of debris, and addressing any wiring issues promptly can help prevent the occurrence of this OBDII code.