C1273 Code - Low Output Signal of Rear Speed Sensor Right
Quick Answer
The C1273 code indicates a low output signal from the rear speed sensor on the right side of the vehicle. Common causes include Faulty rear speed sensor on the right side, Damaged or corroded wiring connecting the sensor to the ECU, Loose or disconnected connectors. 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
- C1273 indicates Low Output Signal of Rear Speed Sensor Right.
- Common causes
- Common causes include Faulty rear speed sensor on the right side, Damaged or corroded wiring connecting the sensor to the ECU, Loose or disconnected connectors.
- 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 C1273 Description
The C1273 code indicates a low output signal from the rear speed sensor on the right side of the vehicle. The speed sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. It is responsible for measuring the speed of the wheels and sending this information to the vehicle's electronic control unit (ECU). When the ECU detects a low output signal from the rear speed sensor on the right side, it can lead to issues with the ABS and traction control systems, affecting the vehicle's overall performance and safety.
Common Causes of C1273
- Faulty rear speed sensor on the right side
- Damaged or corroded wiring connecting the sensor to the ECU
- Loose or disconnected connectors
- Issues with the ECU or ABS control module
Symptoms of C1273
- ABS warning light illuminated on the dashboard
- Traction control system engaging unexpectedly or not working properly
- Uneven braking or loss of braking power
- Unusual noises coming from the wheels while driving
How to Fix C1273
- Begin by conducting a visual inspection of the rear speed sensor on the right side, checking for any physical damage or corrosion.
- Test the sensor using a multimeter to verify its functionality and determine if it is sending a low output signal.
- Inspect the wiring and connectors for any damage or looseness, repairing or replacing as necessary.
- Clear the error code using an OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnostics may be required to identify any underlying issues with the ECU or ABS control module.
Cost to Fix C1273
The typical repair costs for addressing a low output signal from the rear speed sensor right (C1273 code) can range from $150 to $300, including parts and labor. However, it's important to note that these estimates can vary based on factors such as the vehicle make and model, the location of the repair shop, and the specific diagnosis time and labor rates. It is advisable to consult with a professional mechanic to get an accurate estimate based on your specific circumstances.
Tech Notes for C1273
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Code C1273 Information for Specific Makes
- C1273 Buick — Right Front TCS Master Cylinder Isolation Valve Malfunction
- C1273 Cadillac — Right Front TCS Master Cylinder Isolation Valve Malfunction
- C1273 Chevrolet — Right Front TCS Master Cylinder Isolation Valve Malfunction
- C1273 GMC — Right Front TCS Master Cylinder Isolation Valve Malfunction
- C1273 Lexus — Low Output Signal of Rear Speed Sensor Right
- C1273 Pontiac — Right Front TCS Master Cylinder Isolation Valve Malfunction
- C1273 Scion — Low Output Signal of Rear Speed Sensor Right
- C1273 Toyota — Low Output Signal of Rear Speed Sensor Right
Frequently Asked Questions about C1273 Code
1. What does OBDII code C1273 mean?
C1273 indicates a "Low Output Signal of Rear Speed Sensor Right," meaning the right rear wheel speed sensor is not sending adequate signals to the vehicle's ABS system.
2. What are the symptoms of code C1273?
Common symptoms include an illuminated ABS or traction control light, loss of ABS functionality, and possible erratic braking behavior.
3. What causes code C1273 to appear?
The code can be caused by a faulty wheel speed sensor, damaged wiring or connectors, a dirty or corroded sensor, or a malfunctioning ABS control module.
4. Can I drive with code C1273 active?
While the vehicle may still be drivable, driving with this code active can compromise braking safety features, such as ABS and traction control.
5. How do I diagnose code C1273?
Start by inspecting the right rear wheel speed sensor, its wiring, and connectors for damage or corrosion. Use a multimeter to check the sensor's output and continuity.
6. How do I fix the C1273 code?
Repairs can include cleaning or replacing the right rear wheel speed sensor, repairing damaged wiring, or replacing the ABS control module if necessary.
7. How much does it cost to fix code C1273?
Repair costs may vary but typically range from $100 to $300, depending on whether the sensor or additional components need replacement.
8. Can a dirty wheel speed sensor cause C1273?
Yes, dirt, debris, or corrosion on the sensor or its tone ring can cause a weak or low signal, triggering the C1273 code.
9. Will clearing the code fix C1273 permanently?
Clearing the code without addressing the root cause will only be a temporary solution, as the code will likely return.
10. What tools are needed to fix code C1273?
Tools like a multimeter, OBDII scanner, and basic hand tools are typically required to diagnose and repair the issue.
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