OBD Guide
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B2498

Headlamp Switch Multiple Signals Input Active

B2498 is an OBD-II diagnostic trouble code meaning: Headlamp Switch Multiple Signals Input Active. Common causes: headlight switch malfunction, wiring harness damage. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect operation of headlights
  • Spontaneous turning on/off of headlights
  • Error indication on the dashboard

Causes

  • Headlight switch malfunction
  • Wiring harness damage
  • Short circuit in the circuit
  • Problems with the control unit

How to Fix

  1. Diagnosis of the headlight switch
  2. Checking the wiring harness for damage
  3. Circuit Short Circuit Testing
  4. Replacing the switch or repairing the circuit if necessary

Related codes

B2499B2500U0121

FAQ

What does the B2498 code mean?

B2498 is an OBD-II diagnostic trouble code that indicates: Headlamp Switch Multiple Signals Input Active

What causes a B2498 error code?

The most common causes of B2498 include: Headlight switch malfunction; Wiring harness damage; Short circuit in the circuit; Problems with the control unit.

How do I fix a B2498 diagnostic trouble code?

To fix B2498: Diagnosis of the headlight switch. Checking the wiring harness for damage. Circuit Short Circuit Testing. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2498?

Limited driving only, diagnose soon

How much does it cost to fix B2498?

The estimated repair cost for B2498 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat