OBD Guide
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B1315

Backlighting Non Reflective Controls Illumination Output Circuit Short

B1315 is an OBD-II diagnostic trouble code meaning: Backlighting Non Reflective Controls Illumination Output Circuit Short. Common causes: short circuit in wiring harness, damage to wire insulation. Estimated repair cost: $56–167.

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

Symptoms

  • Lack of backlighting of controls
  • Backlight flashing
  • Blown fuses

Causes

  • Short circuit in wiring harness
  • Damage to wire insulation
  • Malfunction of the backlight control unit
  • Oxidation of contacts

How to Fix

  1. Check the backlight circuit fuses
  2. Inspect the wiring harness for damage
  3. Check the operation of the backlight control unit
  4. Eliminate short circuit or replace damaged elements

Related codes

B1316B1317

FAQ

What does the B1315 code mean?

B1315 is an OBD-II diagnostic trouble code that indicates: Backlighting Non Reflective Controls Illumination Output Circuit Short

What causes a B1315 error code?

The most common causes of B1315 include: Short circuit in wiring harness; Damage to wire insulation; Malfunction of the backlight control unit; Oxidation of contacts.

How do I fix a B1315 diagnostic trouble code?

To fix B1315: Check the backlight circuit fuses. Inspect the wiring harness for damage. Check the operation of the backlight control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1315?

Limited driving only, diagnose soon

How much does it cost to fix B1315?

The estimated repair cost for B1315 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat