OBD Guide
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B2701

Front Sonar Sensor Left Outer Harness

B2701 is an OBD-II diagnostic trouble code meaning: Front Sonar Sensor Left Outer Harness. Common causes: wiring harness damage, oxidation of contacts. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Parking sensors not working
  • False alarms of the system
  • Error message on the dashboard

Causes

  • Wiring harness damage
  • Oxidation of contacts
  • Parking sensor malfunction
  • Connection problems

How to Fix

  1. Check the integrity of the wiring harness
  2. Clean contacts from oxidation
  3. Check the functionality of the sensor
  4. Replace damaged components

Related codes

B2702B2703B2704

FAQ

What does the B2701 code mean?

B2701 is an OBD-II diagnostic trouble code that indicates: Front Sonar Sensor Left Outer Harness

What causes a B2701 error code?

The most common causes of B2701 include: Wiring harness damage; Oxidation of contacts; Parking sensor malfunction; Connection problems.

How do I fix a B2701 diagnostic trouble code?

To fix B2701: Check the integrity of the wiring harness. Clean contacts from oxidation. Check the functionality of the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2701?

Limited driving only, diagnose soon

How much does it cost to fix B2701?

The estimated repair cost for B2701 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat