B0689

Security System Indicator Circuit Open

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

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
Scan the SRS control unit for additional errors
Replace damaged components if necessary

Related codes

B0100 B0101 B0688