OBD Guide

B0689

Security System Indicator Circuit Open

B0689 is an OBD-II diagnostic trouble code meaning: Security System Indicator Circuit Open. Common causes: broken or damaged wiring harness, security indicator malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • The security system indicator does not light up when the ignition is turned on.
  • Flashing security light
  • Security error message on dashboard

Causes

  • Broken or damaged wiring harness
  • Security indicator malfunction
  • Poor contact in connectors
  • Problems with the SRS control unit

How to Fix

  1. Check the integrity of the security system wiring harness
  2. Inspect connectors and contacts for oxidation or damage
  3. Check the serviceability of the security system indicator
  4. Scan the SRS control unit for additional errors
  5. Replace damaged components if necessary

Related codes

Error B0689 by Vehicle Brand

FAQ

What does the B0689 code mean?

B0689 is an OBD-II diagnostic trouble code that indicates: Security System Indicator Circuit Open

What causes a B0689 error code?

The most common causes of B0689 include: Broken or damaged wiring harness; Security indicator malfunction; Poor contact in connectors; Problems with the SRS control unit.

How do I fix a B0689 diagnostic trouble code?

To fix B0689: Check the integrity of the security system wiring harness. Inspect connectors and contacts for oxidation or damage. Check the serviceability of the security system indicator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0689?

Do not drive — repair immediately

How much does it cost to fix B0689?

The estimated repair cost for B0689 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat