OBD Guide

B284A

Passenger Blind Spot Warning Light Control Circuit Low

B284A is an OBD-II diagnostic trouble code meaning: Passenger Blind Spot Warning Light Control Circuit Low. Common causes: open or short circuit in wiring harness, warning indicator malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Passenger Blind Spot Warning Indicator Doesn't Work
  • False alarms of the blind spot system
  • Error message on the dashboard

Causes

  • Open or short circuit in wiring harness
  • Warning indicator malfunction
  • Problems with the blind spot system control unit
  • Corrosion of contacts or connectors

How to Fix

  1. Check wiring harness for damage
  2. Check the operation of the warning indicator
  3. Diagnose the blind spot system control unit
  4. Clean contacts and connectors from corrosion

Related codes

FAQ

What does the B284A code mean?

B284A is an OBD-II diagnostic trouble code that indicates: Passenger Blind Spot Warning Light Control Circuit Low

What causes a B284A error code?

The most common causes of B284A include: Open or short circuit in wiring harness; Warning indicator malfunction; Problems with the blind spot system control unit; Corrosion of contacts or connectors.

How do I fix a B284A diagnostic trouble code?

To fix B284A: Check wiring harness for damage. Check the operation of the warning indicator. Diagnose the blind spot system control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B284A?

Limited driving only, diagnose soon

How much does it cost to fix B284A?

The estimated repair cost for B284A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat