OBD Guide
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B2056

Axial Gap Of Radar Sensor

B2056 is an OBD-II diagnostic trouble code meaning: Axial Gap Of Radar Sensor. Common causes: mechanical damage to the radar sensor, incorrect sensor installation. Estimated repair cost: $111–333.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$111–333 (est.)

Symptoms

  • Disabling the adaptive cruise control system
  • A warning appears on the dashboard
  • Incorrect operation of the collision warning system

Causes

  • Mechanical damage to the radar sensor
  • Incorrect sensor installation
  • Worn or deformed sensor mounts
  • Problems with the sensor wiring harness

How to Fix

  1. Check the physical condition of the radar sensor
  2. Check sensor mountings and clearance
  3. Check wiring harness and connections
  4. If necessary, replace the sensor or its mountings
  5. Perform sensor calibration

Related codes

B2055B2057C1A00

FAQ

What does the B2056 code mean?

B2056 is an OBD-II diagnostic trouble code that indicates: Axial Gap Of Radar Sensor

What causes a B2056 error code?

The most common causes of B2056 include: Mechanical damage to the radar sensor; Incorrect sensor installation; Worn or deformed sensor mounts; Problems with the sensor wiring harness.

How do I fix a B2056 diagnostic trouble code?

To fix B2056: Check the physical condition of the radar sensor. Check sensor mountings and clearance. Check wiring harness and connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2056?

Do not drive — repair immediately

How much does it cost to fix B2056?

The estimated repair cost for B2056 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat