OBD Guide
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B270C

Front Sonar Sensor Left Inner

B270C is an OBD-II diagnostic trouble code meaning: Front Sonar Sensor Left Inner. Common causes: sensor damage, open or shorted wiring harness. 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 parking system
  • Error message on the dashboard

Causes

  • Sensor damage
  • Open or shorted wiring harness
  • Sensor connection problems
  • Sensor contamination
  • Malfunction of the parking system control unit

How to Fix

  1. Check the integrity of the sensor and its fastening
  2. Inspect the wiring harness for damage
  3. Clean the sensor from dirt
  4. Check the connection of the sensor to the control unit
  5. Test the parking system at the stand
  6. Replace sensor if necessary

Related codes

B270DB270EB270F

FAQ

What does the B270C code mean?

B270C is an OBD-II diagnostic trouble code that indicates: Front Sonar Sensor Left Inner

What causes a B270C error code?

The most common causes of B270C include: Sensor damage; Open or shorted wiring harness; Sensor connection problems; Sensor contamination.

How do I fix a B270C diagnostic trouble code?

To fix B270C: Check the integrity of the sensor and its fastening. Inspect the wiring harness for damage. Clean the sensor from dirt. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B270C?

Limited driving only, diagnose soon

How much does it cost to fix B270C?

The estimated repair cost for B270C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat