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C1159moderate severity✨ AI-generated

Wheel Speed Sensor Rear Right Circuits Open

Fault in the rear right wheel speed sensor 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 computer is not getting a signal from the wheel speed sensor located at the rear right wheel, which is crucial for the ABS and traction control systems.

What the computer is actually seeing

The ABS control module notices that the wheel speed data for the rear right wheel is missing or not within expected parameters.

What a healthy reading looks like

Should be around 0 volts to 5 volts, indicating wheel speed; typically around 3-4 volts when the wheel is turning at 25 mph.

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 wiring and connectors between the rear right wheel speed sensor and ABS module for damage or corrosion.
  2. 2Check the rear right wheel speed sensor resistance using an ohmmeter; should be within 0 to 2000 ohms. If not, replace the sensor.
  3. 3Measure voltage at the sensor's electrical connector while the wheel is being turned; expect a voltage change. If no change, replace the sensor.
  4. 4Inspect brake fluid level; if low, top off and recheck the fault code after addressing any leaks.
  5. 5Clear the fault codes and take the vehicle for a test drive; if code returns, the sensor or wiring is likely faulty.

Common causes

  • Broken wiring in the sensor circuit
  • Faulty rear right wheel speed sensor
  • Corroded connector at the sensor
  • Low brake fluid level affecting ABS operation
  • Issues with ABS module

Typical repair cost

$$

Related codes

Frequently asked questions

Is it safe to drive with this code?

It may be drivable but could result in loss of ABS and traction control; drive with caution.

Will this fault come back if I don't fix it?

Yes, if the underlying cause isn’t addressed, the code will likely return.

Why does this code appear with other codes?

Other codes may indicate issues with the ABS system affecting multiple wheel speed sensors.

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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