OBD Guide
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B1570

Lamp Headlamp High-Beam Circuit Short To Ground

B1570 is an OBD-II diagnostic trouble code meaning: Lamp Headlamp High-Beam Circuit Short To Ground. Common causes: wiring harness damage, short circuit in switch. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • High beam headlights do not work
  • High beam flashing
  • Circuit fuse tripped

Causes

  • Wiring harness damage
  • Short circuit in switch
  • Contact corrosion
  • Insulation breakdown

How to Fix

  1. Check fuse integrity
  2. Ring the high beam circuit
  3. Inspect the wiring harness for damage
  4. Check the high beam switch
  5. Clean or replace damaged wiring sections

Related codes

B1571B1572

FAQ

What does the B1570 code mean?

B1570 is an OBD-II diagnostic trouble code that indicates: Lamp Headlamp High-Beam Circuit Short To Ground

What causes a B1570 error code?

The most common causes of B1570 include: Wiring harness damage; Short circuit in switch; Contact corrosion; Insulation breakdown.

How do I fix a B1570 diagnostic trouble code?

To fix B1570: Check fuse integrity. Ring the high beam circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1570?

Limited driving only, diagnose soon

How much does it cost to fix B1570?

The estimated repair cost for B1570 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat