OBD Guide
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C1271

Low Output Signal of Front Right Speed Sensor

C1271 is an OBD-II diagnostic trouble code meaning: Low Output Signal of Front Right Speed Sensor. Common causes: front right wheel speed sensor malfunction, broken or damaged wiring harness. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • ABS/ESP indicator is on
  • Disabling the ABS system
  • Disabling the ESP system
  • Incorrect operation of cruise control

Causes

  • Front right wheel speed sensor malfunction
  • Broken or damaged wiring harness
  • Tone ring is dirty or damaged
  • Poor contact in the sensor connector
  • Malfunction of the ABS/ESP control unit

How to Fix

  1. Visually check the sensor and wiring harness for damage
  2. Clean the sensor and connector contacts
  3. Check sensor resistance (must meet specification)
  4. Check the integrity of the tone ring
  5. Replace sensor if necessary
  6. Scan the system for other errors

Related codes

C1272C1273C1274

FAQ

What does the C1271 code mean?

C1271 is an OBD-II diagnostic trouble code that indicates: Low Output Signal of Front Right Speed Sensor

What causes a C1271 error code?

The most common causes of C1271 include: Front right wheel speed sensor malfunction; Broken or damaged wiring harness; Tone ring is dirty or damaged; Poor contact in the sensor connector.

How do I fix a C1271 diagnostic trouble code?

To fix C1271: Visually check the sensor and wiring harness for damage. Clean the sensor and connector contacts. Check sensor resistance (must meet specification). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1271?

Limited driving only, diagnose soon

How much does it cost to fix C1271?

The estimated repair cost for C1271 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

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