C1141 – OBD-II DTC

OBD-II DTC C1141 – Wheel Speed Sensor LF Tone Ring Tooth Missing Fault

DTC C1141 meaning

DTC C1141 refers to a fault in the vehicle’s wheel speed sensor system, specifically indicating that there is a missing tooth on the tone ring of the left front wheel speed sensor. The tone ring is a critical component that works in conjunction with the wheel speed sensor to monitor the rotational speed of the wheel. When the sensor detects that a tooth is missing, it triggers this diagnostic trouble code (DTC), alerting the vehicle’s onboard diagnostic system to a potential issue.

DTC C1141 symptoms

Common symptoms associated with DTC C1141 may include:

• Illumination of the ABS warning light on the dashboard
• Inconsistent or erratic ABS operation
• Loss of traction control functionality
• Potential issues with stability control systems
• Unusual noises from the wheel area during operation

DTC C1141 causes

Several factors can lead to the occurrence of DTC C1141, including:

• Physical damage to the tone ring, such as cracks or breaks
• Corrosion or debris buildup on the tone ring or sensor
• Faulty wheel speed sensor itself
• Wiring issues, such as frayed or damaged wires
• Improper installation of the tone ring or sensor

DTC C1141 seriousness

The seriousness of DTC C1141 can vary depending on the vehicle’s use and the extent of the issue. While it may not immediately affect the vehicle’s drivability, it can lead to:

• Reduced effectiveness of the ABS system
• Increased stopping distances
• Potential safety hazards in slippery conditions
• Further damage to the braking system if left unaddressed

How to diagnose DTC C1141

To diagnose DTC C1141, follow these steps:

• Use an OBD-II scanner to confirm the presence of the code.
• Inspect the left front wheel speed sensor and tone ring for visible damage.
• Check the wiring and connectors for signs of wear or corrosion.
• Test the wheel speed sensor’s resistance and output signal.
• Examine the tone ring for missing teeth or other deformities.

How to fix DTC C1141 step-by-step instructions

To fix DTC C1141, follow these step-by-step instructions:

1. Ensure the vehicle is safely lifted and secured on jack stands.
2. Remove the left front wheel to access the wheel speed sensor and tone ring.
3. Inspect the tone ring for any missing teeth or damage replace if necessary.
4. Check the wheel speed sensor for proper operation
   

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