C1205 Buick Code - Right Front Wheel Speed Sensor Input Signal Equals Zero
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
- C1205 Buick indicates Right Front Wheel Speed Sensor Input Signal Equals Zero.
- 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 C1205 Buick Description
What are the Possible Causes of the DTC C1205 Buick?
- 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 C1205 Buick?
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 C1205 Buick 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 C1205 Buick Code
1. What does the OBDII code C1205 mean on a Buick?
C1205 indicates that the right front wheel speed sensor is not sending a signal to the ABS module, which may affect the anti-lock braking system's performance.
2. What are the common symptoms of code C1205 in a Buick?
Symptoms include the ABS warning light illuminated on the dashboard, possible traction control or stability control warnings, and reduced ABS functionality.
3. What causes the C1205 code to appear on a Buick?
Common causes include a faulty right front wheel speed sensor, damaged wiring or connectors, a dirty or corroded sensor, or a malfunctioning ABS control module.
4. Can I still drive my Buick with code C1205?
While the car may still be drivable, the ABS and traction control systems might not function properly, which could affect braking safety in slippery conditions.
5. How do I diagnose the C1205 code on my Buick?
Diagnose by inspecting the right front wheel speed sensor and its wiring for damage or corrosion, checking for loose connections, and using a multimeter to test the sensor’s resistance.
6. How do I fix the C1205 code on a Buick?
Repairs may include replacing the right front wheel speed sensor, repairing or replacing damaged wiring or connectors, cleaning the sensor, or recalibrating the ABS module if needed.
7. How much does it cost to fix code C1205 on a Buick?
Depending on the issue, repairs can cost between $100 and $300 for parts and labor, with wheel speed sensor replacement being the most common fix.
8. Can a dirty wheel sensor cause the C1205 code on a Buick?
Yes, dirt, debris, or corrosion on the right front wheel speed sensor can prevent it from sending a signal and trigger the C1205 code.
9. Is it necessary to clear the C1205 code after repairs?
Yes, after performing repairs, use an OBDII scanner to clear the code and confirm that it doesn’t reappear during a test drive.
10. Can a bad ABS module cause the C1205 code on a Buick?
While less common, a malfunctioning ABS module can cause the code if it fails to correctly process the wheel speed sensor’s signal.
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