OBD Guide
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B2849

Passenger Blind Spot Warning Light Control Circuit Low

B2849 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, poor contact in connectors. Estimated repair cost: $56–167.

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

Symptoms

  • Passenger side blind spot warning indicator not working
  • Error message on the dashboard
  • Incorrect operation of the blind spot warning system

Causes

  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Warning lamp malfunction
  • Problems with the system control module

How to Fix

  1. Check the integrity of the wiring harness
  2. Check connectors and contacts for oxidation or damage
  3. Check the functionality of the warning lamp
  4. Check system control module
  5. Replace faulty components

Related codes

B2848B2850U0121

FAQ

What does the B2849 code mean?

B2849 is an OBD-II diagnostic trouble code that indicates: Passenger Blind Spot Warning Light Control Circuit Low

What causes a B2849 error code?

The most common causes of B2849 include: Open or short circuit in wiring harness; Poor contact in connectors; Warning lamp malfunction; Problems with the system control module.

How do I fix a B2849 diagnostic trouble code?

To fix B2849: Check the integrity of the wiring harness. Check connectors and contacts for oxidation or damage. Check the functionality of the warning lamp. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2849?

Limited driving only, diagnose soon

How much does it cost to fix B2849?

The estimated repair cost for B2849 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat