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2017 Murano Platinum: ABS and Traction Control Lights On (Code C1101)

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Mike T. · rep 0 · May 25, 1:54 AM · 1 replies · solved · Question

Vehicle: 2017 Nissan Murano Platinum

Hey everyone,

My 2017 Nissan Murano Platinum recently had both the ABS and Traction Control warning lights illuminate on the dashboard. I scanned it with my OBD-II reader, and it pulled a specific code: C1101, which points to a Left Front Wheel Speed Sensor circuit issue.

I haven't noticed any immediate changes in braking performance, but I know these systems are crucial for safety. Could this just be a faulty sensor, or something more complex like wiring or even the ABS module itself? Has anyone dealt with this specific code or issue on their Murano or similar Nissan?

Any advice on troubleshooting or what to expect would be greatly appreciated!

Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 1:54 AM

0

ClearTheCode admin answer:

An illuminated ABS and Traction Control light, accompanied by code C1101 (Left Front Wheel Speed Sensor circuit), clearly indicates an issue with the wheel speed sensor or its circuit on the left front wheel. This is a common problem, and here's how to approach it:

  1. Understand the C1101 Code:

    • Cause: C1101 specifically means there's an electrical fault in the circuit of the left front wheel speed sensor. This could be an open circuit, a short circuit, or an incorrect signal.
    • Impact: When the ABS module doesn't receive a reliable signal from a wheel speed sensor, it disables both ABS and Traction Control systems, as they rely on this data for proper operation.

  2. Inspect the Wheel Speed Sensor and Wiring:

    • Action: The first step is a thorough visual inspection of the left front wheel speed sensor and its wiring harness. Look for:
      • Physical Damage: Cracks, breaks, or corrosion on the sensor itself.
      • Wiring Damage: Frayed wires, cuts, pinches, or signs of rodent damage along the harness leading to the sensor.
      • Connector Issues: Corroded, loose, or damaged pins within the electrical connector that plugs into the sensor.
      • Sensor Gap/Debris: Sometimes, metallic debris can stick to the sensor tip or the sensor might be incorrectly seated, affecting its reading.

  3. Test the Sensor's Resistance (if accessible):

    • Action: If you have a multimeter, you can test the resistance of the sensor (unplugged from the harness). Compare the reading to factory specifications (often available in service manuals or online forums for your specific model). An open circuit (infinite resistance) or a short circuit (very low resistance) indicates a faulty sensor.

  4. Check for Voltage and Continuity in the Harness:

    • Action: With the sensor unplugged, you can test the harness side of the connector for proper voltage (usually a reference voltage from the ABS module) and continuity back to the ABS module. This helps rule out a wiring issue between the sensor and the module.

When to See a Shop:

If the visual inspection doesn't reveal obvious damage, or if you're not comfortable performing electrical tests, it's best to take your Murano to a professional. A mechanic can use specialized diagnostic tools to monitor live wheel speed sensor data, perform advanced electrical tests on the circuit, and accurately determine if the issue is the sensor itself, the wiring, or less commonly, the ABS module. Driving without functional ABS and Traction Control can compromise safety, especially in emergency braking or slippery conditions, so prompt repair is recommended.

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