OBD Guide
ENFRDEESPT

B2090

Driving Support System Malfunction

B2090 is an OBD-II diagnostic trouble code meaning: Driving Support System Malfunction. Common causes: malfunction of system sensors (radar, camera, etc.), wiring harness damage. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Disabling the driving assistance system
  • Dashboard warning
  • Reduced functionality of driver assistants

Causes

  • Malfunction of system sensors (radar, camera, etc.)
  • Wiring harness damage
  • Problems with the system control unit
  • Software errors

How to Fix

  1. Diagnose the system using an OBD-II scanner
  2. Check the condition of the sensors and their connections
  3. Inspect the wiring harness for damage
  4. Update control unit software
  5. If necessary, replace faulty components

Related codes

B2091B2092C1234

FAQ

What does the B2090 code mean?

B2090 is an OBD-II diagnostic trouble code that indicates: Driving Support System Malfunction

What causes a B2090 error code?

The most common causes of B2090 include: Malfunction of system sensors (radar, camera, etc.); Wiring harness damage; Problems with the system control unit; Software errors.

How do I fix a B2090 diagnostic trouble code?

To fix B2090: Diagnose the system using an OBD-II scanner. Check the condition of the sensors and their connections. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2090?

Do not drive — repair immediately

How much does it cost to fix B2090?

The estimated repair cost for B2090 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat