Reno Vulcanizing Has Been Proudly Serving Northern Nevada for Over 100 Years
Modern vehicles rely on more than hydraulics to stop safely. Electronic safety systems continuously monitor wheel speed, traction, and stability to help maintain control during hard braking and sudden maneuvers. In Northern Nevada, where icy roads, elevation changes, and sudden stops are common, these systems play a critical role in vehicle safety.
At Reno Vulcanizing, diagnostic service goes beyond reading a fault code. Advanced scan tools and hands-on testing are used to identify the root cause of a warning light, whether the issue involves a sensor, wiring, or a control module.
Understanding Dashboard Warning Lights
When a safety system detects a fault, it disables part of its function and illuminates a warning light. These lights do not automatically mean the vehicle cannot stop, but they do indicate the system is no longer operating as designed.
ABS Warning Light
Indicates a fault in the anti-lock braking system. Normal braking typically remains available, but wheel lock prevention and steering control during hard stops may be reduced.
Traction Control Warning Light
May flash briefly when tires slip on ice or snow. If the light remains on, the system that limits wheel spin may be disabled.
Stability Control Warning Light
Indicates a fault in the system that helps prevent loss of control during cornering or emergency maneuvers.
Because these systems share data, accurate diagnostics are required to determine the true cause.
A Common Cause We See, Wheel Speed Sensors
One of the most frequent sources of ABS and traction control warnings is a wheel speed sensor issue.
What the Sensor Does
Each wheel hub uses a sensor to monitor how fast the wheel is rotating. The vehicle’s computer compares these signals to determine whether a wheel is slipping, skidding, or locking up.
Why Sensors Fail
Wheel speed sensors are exposed to harsh road conditions. Common failure points include:
- Road debris damaging the sensor housing
- Wiring damage from ice buildup, vibration, or contamination
- Internal electronic failure due to age and repeated heat cycles
When the computer receives unreliable data, it disables safety systems to prevent incorrect braking or traction responses.
Diagnostics vs. Code Reading
A scan at an auto parts store may retrieve a fault code, but a code alone does not confirm which component has failed.
Proper diagnostics include:
- Scanning ABS and stability modules for specific fault codes
- Inspecting wiring and connectors for corrosion or physical damage
- Testing live data to observe sensor signals while the wheel is in motion
This process confirms whether the issue is a failed sensor, wiring problem, tone ring issue, or another condition that would not be resolved by replacing parts blindly.
Repairing ABS and Safety System Issues
Once diagnostics identify the cause, repairs follow manufacturer procedures using OE-standard components.
Repairs may include:
- Replacing faulty wheel speed sensors
- Repairing damaged wiring or connectors
- Programming or calibrating control modules when required
After repairs, system operation is verified to ensure warning lights remain off and safety features function correctly.
What Happens After Diagnostics
After diagnostics are complete:
- Findings are explained clearly
- Issues are prioritized by safety impact
- Repair options are reviewed based on confirmed data
No repairs are performed without your approval.