C1203 Chevrolet Code - Right Front Wheel Speed Sensor Circuit Open or Shorted
Quick Answer
As the wheel is rotated, the speed sensor produces an AC voltage that increases with wheel speed. Common causes include Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted, Right Front Wheel Speed Sensor circuit poor electrical connection. 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 Chevrolet indicates Right Front Wheel Speed Sensor Circuit Open or Shorted.
- Common causes
- Common causes include Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted, Right Front Wheel Speed Sensor circuit poor electrical connection.
- 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.
Code C1203 Chevrolet Description
What are the Possible Causes of the DTC C1203 Chevrolet?
- Faulty Right Front Wheel Speed Sensor
- Right Front Wheel Speed Sensor harness is open or shorted
- Right Front Wheel Speed Sensor circuit poor electrical connection
- Faulty Electronic Brake Control Module (EBCM)
How to Fix the DTC C1203 Chevrolet?
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 Chevrolet 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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Frequently Asked Questions about C1203 Chevrolet Code
1. What does the OBDII code C1203 mean on a Chevrolet vehicle?
C1203 indicates an issue with the right front wheel speed sensor circuit, specifically an open or shorted connection.
2. What are the common symptoms of code C1203 on a Chevrolet?
Common symptoms include the ABS warning light illuminating, reduced ABS functionality, and potentially erratic braking behavior.
3. What causes the C1203 code to appear?
The code can be triggered by a damaged or faulty wheel speed sensor, corroded or broken wiring, poor electrical connections, or a malfunctioning ABS control module.
4. Can I still drive my Chevrolet with a C1203 code?
While the vehicle may still be drivable, the ABS system may not function properly, leading to reduced braking performance in slippery conditions.
5. How can I diagnose the C1203 code on my Chevrolet?
Start by inspecting the right front wheel speed sensor and its wiring for visible damage, corrosion, or disconnections. Use a multimeter to test the sensor’s electrical continuity.
6. How do I fix the C1203 code on my Chevrolet?
Repairs may involve replacing the right front wheel speed sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or resetting the ABS system.
7. How much does it cost to fix a C1203 code on a Chevrolet?
Repair costs can range from $100 to $300, depending on whether the issue is with the sensor, wiring, or other components.
8. What tools are needed to repair the C1203 code?
Common tools include a multimeter, OBDII scanner, basic hand tools, and possibly a jack and jack stands for access to the wheel sensor.
9. Can a C1203 code cause other issues if left unrepaired?
Yes, neglecting the issue can lead to further ABS system malfunctions and reduced braking performance, especially in emergency or low-traction situations.
10. Will clearing the C1203 code fix the problem?
Clearing the code without addressing the root cause will not fix the problem; the code will likely reappear after a short time.
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