OBD Guide
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B2705

Rear Sonar Sensor Left Outer Harness

B2705 is an OBD-II diagnostic trouble code meaning: Rear Sonar Sensor Left Outer Harness. Common causes: break in the wiring harness, short circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Left external parking sensor does not work
  • False alarms of parking sensors on the left side
  • Parking system malfunction indicator on the dashboard

Causes

  • Break in the wiring harness
  • Short circuit
  • Poor contact in the connector
  • Contact corrosion
  • Mechanical damage to wires

How to Fix

  1. Visually inspect the wiring harness for damage
  2. Checking circuit continuity with a multimeter
  3. Cleaning contacts from corrosion
  4. Repair or replacement of damaged wires
  5. Checking the operation of the sensor after repair

Related codes

B2704B2706B2707

FAQ

What does the B2705 code mean?

B2705 is an OBD-II diagnostic trouble code that indicates: Rear Sonar Sensor Left Outer Harness

What causes a B2705 error code?

The most common causes of B2705 include: Break in the wiring harness; Short circuit; Poor contact in the connector; Contact corrosion.

How do I fix a B2705 diagnostic trouble code?

To fix B2705: Visually inspect the wiring harness for damage. Checking circuit continuity with a multimeter. Cleaning contacts from corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2705?

Limited driving only, diagnose soon

How much does it cost to fix B2705?

The estimated repair cost for B2705 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat