OBD Guide
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B17A5

Halo Lamps Control Circuit Short To Ground

B17A5 is an OBD-II diagnostic trouble code meaning: Halo Lamps Control Circuit Short To Ground. Common causes: damaged wiring harness, faulty relay. Estimated repair cost: $56–167.

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

Symptoms

  • Side lights don't work
  • Flashing side lights
  • Dashboard warning

Causes

  • Damaged wiring harness
  • Faulty relay
  • Short circuit in headlight
  • Problems with the control unit

How to Fix

  1. Check wiring harness for damage
  2. Check side light relay
  3. Check the headlights for short circuits
  4. Check the control unit for errors

Related codes

B17A4B17A6

FAQ

What does the B17A5 code mean?

B17A5 is an OBD-II diagnostic trouble code that indicates: Halo Lamps Control Circuit Short To Ground

What causes a B17A5 error code?

The most common causes of B17A5 include: Damaged wiring harness; Faulty relay; Short circuit in headlight; Problems with the control unit.

How do I fix a B17A5 diagnostic trouble code?

To fix B17A5: Check wiring harness for damage. Check side light relay. Check the headlights for short circuits. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B17A5?

Limited driving only, diagnose soon

How much does it cost to fix B17A5?

The estimated repair cost for B17A5 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat