B0080

Q: What does OBD2 code B0080 mean?

B0080 means: Roof Rail Deployment Control, Left (Circuit/Performance). A fault has been detected in the left-side roof rail (curtain) airbag deployment circuit.

Roof Rail Deployment Control, Left (Circuit/Performance)

A fault has been detected in the left-side roof rail (curtain) airbag deployment circuit.

SeverityCritical

CategoryAirbag / SRS

Est. Repair Cost$200-$550

Code TypeBody

DIY RepairProfessional

⚡ Common Causes

›Damaged headliner wiring
›Corroded A/B/C-pillar connector
›Faulty roof rail sensor
›SRS module fault

⚠️ Symptoms

›Airbag warning light on
›Left side curtain airbag inoperative

✅ How to Fix — Step by Step

Step 1:Scan SRS system for codes
Step 2:Inspect headliner and pillar wiring
Step 3:Replace faulty sensor or module

🔧 Diagnostic Tools Required

✔SRS Diagnostic Scanner
✔Digital Multimeter
✔Service Manual
✔Basic Hand Tools

Using the correct diagnostic tools helps identify the root cause of B0080 before replacing parts unnecessarily. Always confirm the fault using live data and manufacturer-recommended diagnostic procedures.

💡 Pro Tip: Roof rail airbag faults often trace back to headliner removal during other repairs - check connectors near the pillars first.

Repair Cost Estimate

Full Repair Estimate

$200-$550

DIY Possible?

PRO

Severity

Critical

Frequently Asked Questions

What does OBD2 code B0080 mean?+

B0080 stands for Roof Rail Deployment Control, Left (Circuit/Performance). A fault has been detected in the left-side roof rail (curtain) airbag deployment circuit.

What causes code B0080?+

Damaged headliner wiring; Corroded A/B/C-pillar connector; Faulty roof rail sensor; SRS module fault

How do I fix code B0080?+

Scan SRS system for codes; Inspect headliner and pillar wiring; Replace faulty sensor or module

How much does it cost to fix B0080?+

Estimated repair cost for B0080 is $200-$550.

Is B0080 DIY-friendly?+

B0080 typically requires professional equipment and a qualified mechanic.