Wheel Speed Sensor Performance Problem
This code indicates a problem with the wheel speed sensor or its circuit.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The wheel speed sensor measures how fast each wheel is spinning. It's essential for things like anti-lock brakes and traction control. If it can't get a good reading, your vehicle might not stop as safely or could slip in slippery conditions.
What the computer is actually seeing
The vehicle control module (VCM) monitors the wheel speed sensors for consistent signals. If the speed sensor fails to send a signal or sends an abnormal signal, the VCM detects this discrepancy and sets the C1116 code.
What a healthy reading looks like
Typical wheel speed output is between 0 to 5 volts. When the vehicle is stationary, the speed should read 0 volts; while rolling, it should reflect the speed of the wheel, usually around 1-2 volts at slow speeds and near 5 volts at higher speeds.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect the wiring and connector to the wheel speed sensor for damage or corrosion. If any are found, repair or replace as necessary. Decision point: If wiring is good, proceed to step 2. If damaged, repair it and retest.
- 22. Test the wheel speed sensor output using a multimeter. You should see voltage changes related to wheel speed according to expected values. Decision point: If you see no change or the voltage is out of range, replace the sensor. If readings are within range, proceed to step 3.
- 33. Check for any stored trouble codes in the VCM that might indicate an underlying issue with the brake system or the control module. Decision point: If additional codes are present, diagnose those accordingly. If no additional codes, suspect possible issues with the VCM.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connector issues
- Corrosion at sensor connector
- Faulty vehicle control module (VCM)
- Brake system issues affecting sensor readings
Typical repair cost
$$-$$$
Related codes
Frequently asked questions
Can I drive with this code?
It's drivable, but your anti-lock brakes and traction control could be affected, increasing stopping distances or risking wheel lockup.
Will this code come back after I fix it?
If all connections and the sensor are good, and the issue is resolved, it should clear and not return.
Why does this code affect my brakes?
The wheel speed sensor is crucial for the ABS and stability control systems, which help maintain traction and stop safely.
Working a real vehicle right now?
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