OBD Guide
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B2517

Emergency Power Off System Faulted

B2517 is an OBD-II diagnostic trouble code meaning: Emergency Power Off System Faulted. Common causes: open or shorted wiring harness, faulty airbag controller. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Airbag light is on
  • Restraint system inactive
  • No response from belt pretensioners during diagnostics

Causes

  • Open or shorted wiring harness
  • Faulty airbag controller
  • Damaged squibs or pretensioners
  • Poor contact in connectors

How to Fix

  1. Check airbag module error codes
  2. Inspect the restraint system wiring harness
  3. Check the resistance of the squibs and circuits
  4. Scan the airbag controller for faults
  5. Replace damaged components

Related codes

B1000B1011B1021

FAQ

What does the B2517 code mean?

B2517 is an OBD-II diagnostic trouble code that indicates: Emergency Power Off System Faulted

What causes a B2517 error code?

The most common causes of B2517 include: Open or shorted wiring harness; Faulty airbag controller; Damaged squibs or pretensioners; Poor contact in connectors.

How do I fix a B2517 diagnostic trouble code?

To fix B2517: Check airbag module error codes. Inspect the restraint system wiring harness. Check the resistance of the squibs and circuits. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2517?

Do not drive — repair immediately

How much does it cost to fix B2517?

The estimated repair cost for B2517 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat