B3685

Movable Roof Header Latched Left Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

The airbag malfunction indicator comes on
Security error message on display
The curtain airbag may not deploy in an accident.

Causes

Open or short circuit in wiring harness
Oxidized or damaged sensor contacts
Faulty curtain fixation sensor
Problems with the SRS control unit

How to Fix

Run diagnostics on the SRS system to confirm the error.
Visually inspect the wiring harness and sensor contacts
Check the sensor resistance according to the manual
Replace the sensor or restore circuit integrity if necessary
Clear the error and check if it comes back

Related codes

B3686 B0100 B0101