Back to 2018 Cadillac XT5

2018 CADILLAC XT5

3.6L V6FWDAUTOMATICgas
Repairs0Labor479Torque3847Fluid6DTC969Battery0Maintenance0Recalls0
B0041critical severityBody

Side Crash Sensor Communication Error - Left

on 2018 Cadillac XT5 3.6L V6 · FWD

What this code means

Communication loss between the left side crash sensor and the airbag control module.

Symptoms

  • Airbag warning light on
  • SRS code stored
  • Left side airbag protection degraded

Common causes

  • Damaged wiring in door or B-pillar
  • Faulty sensor
  • ACM bus fault
  • Door harness disconnect

Diagnostic steps

  1. Scan SRS codes
  2. Check B-pillar connector
  3. Inspect door-to-body wiring
  4. Test sensor bus communication

Repair notes

Repair wiring or replace left side crash sensor.

Other Body codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →