OBD Guide
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B1510

Flash To Pass Switch Circuit Short To Ground

B1510 is an OBD-II diagnostic trouble code meaning: Flash To Pass Switch Circuit Short To Ground. Common causes: damage to the wires in the button circuit, faulty high beam button. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • High beam turns on spontaneously
  • It is impossible to turn on/off high beams
  • The malfunction indicator on the dashboard is on

Causes

  • Damage to the wires in the button circuit
  • Faulty high beam button
  • Short circuit in wiring harness
  • Problems with the lighting control module

How to Fix

  1. Check the integrity of the wires in the button circuit
  2. Test the high beam button
  3. Inspect the wiring harness for damage
  4. Check the operation of the lighting control module
  5. Replace faulty components

Related codes

B1511B1512U0121

FAQ

What does the B1510 code mean?

B1510 is an OBD-II diagnostic trouble code that indicates: Flash To Pass Switch Circuit Short To Ground

What causes a B1510 error code?

The most common causes of B1510 include: Damage to the wires in the button circuit; Faulty high beam button; Short circuit in wiring harness; Problems with the lighting control module.

How do I fix a B1510 diagnostic trouble code?

To fix B1510: Check the integrity of the wires in the button circuit. Test the high beam button. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1510?

Limited driving only, diagnose soon

How much does it cost to fix B1510?

The estimated repair cost for B1510 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat