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C1086moderate severity✨ AI-generated

Wheel Speed Sensor 2 Signal Intermittent

Indicates an intermittent signal from wheel speed sensor 2.

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 computer isn't getting a steady signal from the second wheel speed sensor, meaning it might be cutting out when the vehicle is moving.

What the computer is actually seeing

The abs control unit expects the wheel speed from sensor 2 to be consistent while moving, typically 0-25 mph for stationary and increasing proportional to speed when moving. If the voltage drops below 0.5V or above 4.5V intermittently, it sets this code.

What a healthy reading looks like

Sensor output voltage should range between 0.5V and 4.5V depending on speed.

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.

  1. 1Check the wiring and connectors at wheel speed sensor 2 for damage or corrosion first.
  2. 2Using a multimeter, measure the voltage output of wheel speed sensor 2. Expect between 0.5V and 4.5V while rotating the wheel. If no signal, replace the sensor.
  3. 3Inspect the ABS control module connections. Look for corrosion or loose connections to eliminate module-related issues.
  4. 4Check the operation of wheel bearings, as excessive play can impact sensor readings.

Common causes

  • Faulty wheel speed sensor 2
  • Damaged or corroded wiring/connectors
  • Issues with the ABS control module
  • Wheel bearing issues affecting the sensor placement

Typical repair cost

$$

Related codes

Frequently asked questions

Is it safe to drive with this code?

It's moderately safe but can affect ABS performance. Fix sooner than later.

Will this code clear itself?

It may clear on its own if the intermittent condition resolves, but it's best to address the root cause.

Why does it pair with C1085?

C1085 is typically the corresponding code for the first wheel speed sensor, indicating both sensors could be having issues.

Working a real vehicle right now?

Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.

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