OBD Guide
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C1276

Abnormal Change in Output Signal of Front Left Speed Sensor

C1276 is an OBD-II diagnostic trouble code meaning: Abnormal Change in Output Signal of Front Left Speed Sensor. Common causes: damage to the wheel speed sensor, sensor contamination. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • The ABS indicator on the dashboard lights up
  • The stabilization system is activated (if equipped)
  • Problems with ABS operation on slippery surfaces

Causes

  • Damage to the wheel speed sensor
  • Sensor contamination
  • Open or short circuit in wiring harness
  • ABS control unit malfunction
  • Problems with the ring gear on the wheel hub

How to Fix

  1. Check the visual condition of the sensor and its wiring
  2. Clean the sensor from dirt
  3. Check sensor resistance (must meet specification)
  4. Check the integrity of the wiring harness
  5. Replace sensor if necessary
  6. Check the condition of the ring gear on the hub

Related codes

C1277C1278C1279

FAQ

What does the C1276 code mean?

C1276 is an OBD-II diagnostic trouble code that indicates: Abnormal Change in Output Signal of Front Left Speed Sensor

What causes a C1276 error code?

The most common causes of C1276 include: Damage to the wheel speed sensor; Sensor contamination; Open or short circuit in wiring harness; ABS control unit malfunction.

How do I fix a C1276 diagnostic trouble code?

To fix C1276: Check the visual condition of the sensor and its wiring. Clean the sensor from dirt. Check sensor resistance (must meet specification). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1276?

Limited driving only, diagnose soon

How much does it cost to fix C1276?

The estimated repair cost for C1276 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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