C1273 Code - Low Output Signal of Rear Speed Sensor Right
Quick Answer
The speed sensor detects the wheel speed and sends the appropriate signals to the Skid Control ECU (Brake Actuator Assembly). Common causes include Faulty Rear Speed Sensor Right (Rear Axle Hub and Bearing Assembly Right), Rear Speed Sensor Right Rotor (Rear Axle Hub and Bearing Assembly Right), Rear Speed Sensor Right harness is open or shorted. 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 Right (Rear Axle Hub and Bearing Assembly Right), Rear Speed Sensor Right Rotor (Rear Axle Hub and Bearing Assembly Right), Rear Speed Sensor Right harness is open or shorted.
- 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 C1273 Description
What are the Possible Causes of the DTC C1273?
- Faulty Rear Speed Sensor Right (Rear Axle Hub and Bearing Assembly Right)
- Rear Speed Sensor Right Rotor (Rear Axle Hub and Bearing Assembly Right)
- Rear Speed Sensor Right harness is open or shorted
- Rear Speed Sensor Right circuit poor electrical connection
How to Fix the DTC C1273?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1273 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.
Need more information about the C1273 code?
Need more information on how to fix the C1273 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1273 code diagnosed by a professional: Find a repair shop in your area
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.
Discuss the causes and fixes for C1273 OBDII Code
Code C1273 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
