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C0047 Cadillac Code - Left Rear Wheel Speed Sensor Circuit Low

Quick Answer

The C0047 Cadillac code indicates a problem with the left rear wheel speed sensor circuit being low. Common causes include Faulty left rear wheel speed sensor, Damaged wiring or connectors leading to the sensor, Corrosion or debris affecting the sensor's performance. 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
C0047 Cadillac indicates Left Rear Wheel Speed Sensor Circuit Low.
Common causes
Common causes include Faulty left rear wheel speed sensor, Damaged wiring or connectors leading to the sensor, Corrosion or debris affecting the sensor's performance.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code C0047 Cadillac Description

The C0047 Cadillac code indicates a problem with the left rear wheel speed sensor circuit being low. The wheel speed sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. The sensor measures the speed of the wheel and sends this information to the vehicle's electronic control module (ECM) to help maintain stability and prevent wheel lock-up during braking.

OBDII Code C0047 Cadillac - Left Rear Wheel Speed Sensor Circuit Low
C0047 Cadillac Code - Left Rear Wheel Speed Sensor Circuit Low

Common Causes of C0047 Cadillac

  1. Faulty left rear wheel speed sensor
  2. Damaged wiring or connectors leading to the sensor
  3. Corrosion or debris affecting the sensor's performance
  4. ECM malfunction or communication issues
  5. Impact or damage to the sensor or its mounting position

Symptoms of C0047 Cadillac

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunction warning
  3. Loss of traction or stability during braking or cornering
  4. Increased stopping distance
  5. Uneven braking pressure between wheels

How to Fix C0047 Cadillac

  1. Begin by locating the left rear wheel speed sensor on the vehicle.
  2. Inspect the sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the sensor using a multimeter to check for proper resistance and signal output.
  4. If the sensor is faulty, replace it with a new one and ensure proper installation.
  5. Clear the diagnostic trouble codes from the ECM and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix C0047 Cadillac

The cost of repairing a left rear wheel speed sensor circuit low issue can vary depending on the specific vehicle make and model, as well as the location and labor rates of the auto repair shop. Typically, the cost of a new wheel speed sensor ranges from $50 to $150, with additional labor costs for installation. Overall, the total repair cost could range from $150 to $300 or more, including parts and labor. It is advisable to obtain quotes from local auto repair shops to get a more accurate estimate based on individual circumstances.

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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 C0047 Cadillac Code

1. What are the common symptoms of OBDII code C0047 in a Cadillac related to the left rear wheel speed sensor circuit low?

- Common symptoms include issues with the vehicle's traction control system, ABS system, and stability control. You may experience erratic braking, traction loss, and warning lights on the dashboard.

2. What are possible causes of the OBDII code C0047 Cadillac - Left Rear Wheel Speed Sensor Circuit Low?

- Potential causes include a faulty left rear wheel speed sensor, damaged wiring or connectors in the circuit, or issues with the ABS module.

3. How can I diagnose the OBDII code C0047 in my Cadillac?

- Diagnosis typically involves using a professional OBDII scanner to read the trouble codes, conducting a visual inspection of the left rear wheel speed sensor and its wiring, and performing tests to check for continuity and proper voltage in the circuit.

4. Can I still drive my Cadillac with the OBDII code C0047 present?

- It is not recommended to drive the vehicle with this code present, as it can affect the proper functioning of crucial safety systems like ABS and traction control. It is best to address the issue promptly.

5. What are the repair options for fixing OBDII code C0047 in a Cadillac?

- Repair options include replacing the left rear wheel speed sensor, repairing or replacing damaged wiring or connectors, and addressing any issues with the ABS module if necessary.

6. Are there any DIY tips for troubleshooting OBDII code C0047 before seeking professional help?

- You can start by visually inspecting the left rear wheel speed sensor and its connections for any visible damage. You can also check for loose or corroded wiring that may be causing the circuit to have low voltage.

7. How critical is it to address the OBDII code C0047 Cadillac - Left Rear Wheel Speed Sensor Circuit Low promptly?

- It is essential to address this code promptly as it can impact the vehicle's safety systems and overall driving performance. Ignoring the issue can lead to unsafe driving conditions and potential further damage.

8. Can weather conditions affect the occurrence of OBDII code C0047 in a Cadillac?

- Extreme weather conditions like heavy rain or snow can potentially affect the wheel speed sensors and their circuits, leading to the triggering of this code. It is important to maintain the vehicle well, especially in challenging weather.

9. Will resetting the OBDII code C0047 resolve the issue in a Cadillac?

- Resetting the code may temporarily turn off the warning lights, but it will not fix the underlying problem causing the left rear wheel speed sensor circuit low issue. Proper diagnosis and repair are necessary to resolve the issue effectively.

10. How much can I expect to spend on repairing OBDII code C0047 in a Cadillac at a professional auto repair shop?

- The cost of repairing this code can vary depending on the exact cause of the issue, the labor rates of the repair shop, and the cost of parts. It's recommended to get a diagnosis first to determine the exact repair cost.

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